{"id":67925,"date":"2026-01-29T12:17:43","date_gmt":"2026-01-29T04:17:43","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/67925.html"},"modified":"2026-01-29T12:17:43","modified_gmt":"2026-01-29T04:17:43","slug":"%e7%bc%96%e7%a8%8b%e4%b8%8e%e6%95%b0%e5%ad%a6-03-008-%e3%80%8a%e7%9c%8b%e6%bd%ae%e4%bc%81%e4%b8%9a%e7%ae%a1%e7%90%86%e8%bd%af%e4%bb%b6%e3%80%8b%e9%a1%b9%e7%9b%ae%e5%bc%80%e5%8f%91-07-%e6%95%b0","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/67925.html","title":{"rendered":"\u7f16\u7a0b\u4e0e\u6570\u5b66 03-008 \u300a\u770b\u6f6e\u4f01\u4e1a\u7ba1\u7406\u8f6f\u4ef6\u300b\u9879\u76ee\u5f00\u53d1 07 \u6570\u636e\u8bbf\u95ee 3-3"},"content":{"rendered":"<\/p>\n<h4>\u7f16\u7a0b\u4e0e\u6570\u5b66 03-008 \u300a\u770b\u6f6e\u4f01\u4e1a\u7ba1\u7406\u8f6f\u4ef6\u300b\u9879\u76ee\u5f00\u53d1 07 \u6570\u636e\u8bbf\u95ee 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number\">3<\/span><span class=\"token punctuation\">.<\/span> KcErp<span class=\"token punctuation\">.<\/span>KcMain <span class=\"token punctuation\">(<\/span>\u4e3b\u7a0b\u5e8f\u7c7b<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token number\">4<\/span><span class=\"token punctuation\">.<\/span> System<span class=\"token punctuation\">.<\/span>Data <span class=\"token punctuation\">(<\/span>ADO<span class=\"token punctuation\">.<\/span>NET\u6838\u5fc3<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token number\">5<\/span><span class=\"token punctuation\">.<\/span> System<span class=\"token punctuation\">.<\/span>Windows<span class=\"token punctuation\">.<\/span>Forms <span class=\"token punctuation\">(<\/span>\u526a\u8d34\u677f\u529f\u80fd<span class=\"token punctuation\">)<\/span><\/p>\n<h3>&#xff08;\u4e09&#xff09;\u6838\u5fc3\u529f\u80fd\u8be6\u89e3<\/h3>\n<h4>3.1 \u6570\u636e\u5e93\u8fde\u63a5\u7ba1\u7406<\/h4>\n<h5>\u8fde\u63a5\u5b57\u6bb5\u8bf4\u660e&#xff1a;<\/h5>\n<table>\n<tr>\u5b57\u6bb5\u540d\u7c7b\u578b\u8bf4\u660e\u9ed8\u8ba4\u503c<\/tr>\n<tbody>\n<tr>\n<td>KcCn<\/td>\n<td>NpgsqlConnection<\/td>\n<td>\u6570\u636e\u5e93\u8fde\u63a5\u5bf9\u8c61<\/td>\n<td>null<\/td>\n<\/tr>\n<tr>\n<td>SvNAME<\/td>\n<td>string<\/td>\n<td>\u670d\u52a1\u5668\u5730\u5740\/\u540d\u79f0<\/td>\n<td>\u201c\u201d<\/td>\n<\/tr>\n<tr>\n<td>SvPORT<\/td>\n<td>string<\/td>\n<td>PostgreSQL\u7aef\u53e3<\/td>\n<td>\u201c5432\u201d<\/td>\n<\/tr>\n<tr>\n<td>DBname<\/td>\n<td>string<\/td>\n<td>\u6570\u636e\u5e93\u540d\u79f0<\/td>\n<td>\u201c\u201d<\/td>\n<\/tr>\n<tr>\n<td>SFlj<\/td>\n<td>bool<\/td>\n<td>\u8fde\u63a5\u72b6\u6001\u6807\u5fd7<\/td>\n<td>false<\/td>\n<\/tr>\n<tr>\n<td>LJtime<\/td>\n<td>int<\/td>\n<td>\u547d\u4ee4\u8d85\u65f6\u65f6\u95f4(\u79d2)<\/td>\n<td>0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h5>\u5173\u952e\u65b9\u6cd5&#xff1a;<\/h5>\n<li>\n<p>DBLJ() &#8211; \u5efa\u7acb\u8fde\u63a5<\/p>\n<p> <span class=\"token comment\">\/\/ \u52a8\u6001\u6784\u5efa\u8fde\u63a5\u5b57\u7b26\u4e32\u5e76\u6253\u5f00\u8fde\u63a5<\/span><br \/>\n<span class=\"token comment\">\/\/ \u683c\u5f0f&#xff1a;Host&#061;\u670d\u52a1\u5668;Port&#061;\u7aef\u53e3;Database&#061;\u5e93\u540d;Username&#061;\u7528\u6237;Password&#061;\u5bc6\u7801<\/span>\n <\/li>\n<li>\n<p>DBopen()\/DBclose() &#8211; \u8fde\u63a5\u72b6\u6001\u7ba1\u7406<\/p>\n<ul>\n<li>\u667a\u80fd\u6253\u5f00\/\u5173\u95ed\u8fde\u63a5<\/li>\n<li>\u7ef4\u62a4SFlj\u72b6\u6001\u6807\u5fd7<\/li>\n<\/ul>\n<\/li>\n<h4>3.2 SQL\u64cd\u4f5c\u63a5\u53e3<\/h4>\n<h5>3.2.1 \u67e5\u8be2\u7c7b\u65b9\u6cd5<\/h5>\n<table>\n<tr>\u65b9\u6cd5\u540d\u8fd4\u56de\u7c7b\u578b\u529f\u80fd\u8bf4\u660e\u9002\u7528\u573a\u666f<\/tr>\n<tbody>\n<tr>\n<td>DBString()<\/td>\n<td>string<\/td>\n<td>\u8fd4\u56de\u5355\u503c\u5b57\u7b26\u4e32<\/td>\n<td>\u83b7\u53d6\u5355\u4e2a\u5b57\u6bb5\u503c<\/td>\n<\/tr>\n<tr>\n<td>DBInteger()<\/td>\n<td>int<\/td>\n<td>\u8fd4\u56de\u5355\u503c\u6574\u6570<\/td>\n<td>\u83b7\u53d6ID\u3001\u8ba1\u6570\u7b49<\/td>\n<\/tr>\n<tr>\n<td>DtRead()<\/td>\n<td>DataTable<\/td>\n<td>\u8fd4\u56de\u6570\u636e\u8868<\/td>\n<td>\u67e5\u8be2\u591a\u884c\u6570\u636e<\/td>\n<\/tr>\n<tr>\n<td>GetFormula()<\/td>\n<td>string<\/td>\n<td>\u8ba1\u7b97\u516c\u5f0f<\/td>\n<td>\u4e13\u7528\u8ba1\u7b97\u573a\u666f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h5>3.2.2 \u6267\u884c\u7c7b\u65b9\u6cd5<\/h5>\n<table>\n<tr>\u65b9\u6cd5\u540d\u8fd4\u56de\u7c7b\u578b\u529f\u80fd\u8bf4\u660eSQL\u7c7b\u578b<\/tr>\n<tbody>\n<tr>\n<td>DBexec()<\/td>\n<td>string<\/td>\n<td>\u6267\u884c\u547d\u4ee4\u8fd4\u56de\u6807\u91cf<\/td>\n<td>INSERT\/UPDATE<\/td>\n<\/tr>\n<tr>\n<td>GetJlSql()<\/td>\n<td>void<\/td>\n<td>\u8bb0\u5f55SQL\u65e5\u5fd7<\/td>\n<td>INSERT<\/td>\n<\/tr>\n<tr>\n<td>DtSaves()<\/td>\n<td>bool<\/td>\n<td>DataTable\u4fdd\u5b58<\/td>\n<td>\u6279\u91cf\u66f4\u65b0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>3.3 DataTable\u540c\u6b65\u673a\u5236<\/h4>\n<h5>3.3.1 \u540c\u6b65\u65b9\u5f0f\u5bf9\u6bd4<\/h5>\n<table>\n<tr>\u65b9\u6cd5\u66f4\u65b0\u7b56\u7565\u9002\u7528\u573a\u666f\u6027\u80fd<\/tr>\n<tbody>\n<tr>\n<td>DtSaves()<\/td>\n<td>DataAdapter\u81ea\u52a8\u66f4\u65b0<\/td>\n<td>\u7b80\u5355\u8868\u5355<\/td>\n<td>\u4e2d<\/td>\n<\/tr>\n<tr>\n<td>DtSaven()<\/td>\n<td>\u751f\u6210SQL\u6279\u91cf\u6267\u884c<\/td>\n<td>\u590d\u6742\u4e8b\u52a1<\/td>\n<td>\u9ad8<\/td>\n<\/tr>\n<tr>\n<td>GetDtSavev()<\/td>\n<td>\u6307\u5b9a\u5b57\u6bb5\u66f4\u65b0<\/td>\n<td>\u90e8\u5206\u66f4\u65b0<\/td>\n<td>\u9ad8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h5>3.3.2 \u53d8\u66f4\u68c0\u6d4b\u6d41\u7a0b<\/h5>\n<p>DataTable.GetChanges()<br \/>\n    \u251c\u2500\u2500 DataRowState.Deleted   \u2192 \u751f\u6210DELETE\u8bed\u53e5<br \/>\n    \u251c\u2500\u2500 DataRowState.Added     \u2192 \u751f\u6210INSERT\u8bed\u53e5<br \/>\n    \u2514\u2500\u2500 DataRowState.Modified  \u2192 \u751f\u6210UPDATE\u8bed\u53e5<\/p>\n<h5>3.3.3 \u6570\u636e\u7c7b\u578b\u6620\u5c04\u8868<\/h5>\n<table>\n<tr>.NET\u7c7b\u578bPostgreSQL\u7c7b\u578b\u5904\u7406\u65b9\u5f0f<\/tr>\n<tbody>\n<tr>\n<td>String\/Char<\/td>\n<td>varchar\/text<\/td>\n<td>\u5355\u5f15\u53f7\u8f6c\u4e49<\/td>\n<\/tr>\n<tr>\n<td>DateTime<\/td>\n<td>timestamp<\/td>\n<td>\u683c\u5f0f\u5316\u4e3ayyyy-MM-dd HH:mm:ss<\/td>\n<\/tr>\n<tr>\n<td>Date<\/td>\n<td>date<\/td>\n<td>\u683c\u5f0f\u5316\u4e3ayyyy-MM-dd<\/td>\n<\/tr>\n<tr>\n<td>Boolean<\/td>\n<td>boolean<\/td>\n<td>true\/false<\/td>\n<\/tr>\n<tr>\n<td>\u6570\u503c\u7c7b\u578b<\/td>\n<td>numeric\/int<\/td>\n<td>\u76f4\u63a5\u4f7f\u7528<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>3.4 \u9519\u8bef\u5904\u7406\u4f53\u7cfb<\/h4>\n<h5>3.4.1 \u9519\u8bef\u5904\u7406\u6d41\u7a0b<\/h5>\n<p>\u5f02\u5e38\u53d1\u751f<br \/>\n    \u2193<br \/>\nDtMsg() \u88ab\u8c03\u7528<br \/>\n    \u251c\u2500\u2500 \u663e\u793a\u7528\u6237\u53cb\u597d\u6d88\u606f<br \/>\n    \u251c\u2500\u2500 \u9519\u8bef\u4fe1\u606f\u590d\u5236\u5230\u526a\u8d34\u677f<br \/>\n    \u251c\u2500\u2500 \u786e\u4fdd\u6570\u636e\u5e93\u8fde\u63a5\u6b63\u5e38<br \/>\n    \u2514\u2500\u2500 \u8bb0\u5f55\u5230x9_errcode\u8868<\/p>\n<h5>3.4.2 \u9519\u8bef\u8bb0\u5f55\u5b57\u6bb5<\/h5>\n<table>\n<tr>\u5b57\u6bb5\u540d\u8bf4\u660e\u793a\u4f8b\u503c<\/tr>\n<tbody>\n<tr>\n<td>extime<\/td>\n<td>\u9519\u8bef\u65f6\u95f4<\/td>\n<td>now()<\/td>\n<\/tr>\n<tr>\n<td>username<\/td>\n<td>\u7528\u6237\u4fe1\u606f<\/td>\n<td>\u7ad9\u70b9 \u7528\u6237 \u5b50\u7cfb\u7edf<\/td>\n<\/tr>\n<tr>\n<td>exsource<\/td>\n<td>\u9519\u8bef\u6e90<\/td>\n<td>\u65b9\u6cd5\u540d<\/td>\n<\/tr>\n<tr>\n<td>exmessage<\/td>\n<td>\u9519\u8bef\u6d88\u606f<\/td>\n<td>\u201c\u8fdd\u53cd\u552f\u4e00\u7ea6\u675f\u201d<\/td>\n<\/tr>\n<tr>\n<td>exstacktrace<\/td>\n<td>\u5806\u6808\u8ddf\u8e2a<\/td>\n<td>\u5b8c\u6574\u5806\u6808<\/td>\n<\/tr>\n<tr>\n<td>exsql<\/td>\n<td>SQL\u8bed\u53e5<\/td>\n<td>\u524d500\u5b57\u7b26<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>3.5 \u53c2\u6570\u7ba1\u7406\u7cfb\u7edf<\/h4>\n<h5>3.5.1 \u53c2\u6570\u7c7b\u578b<\/h5>\n<table>\n<tr>\u53c2\u6570\u7c7b\u578b\u7f13\u5b58\u5b57\u6bb5\u6570\u636e\u5e93\u5b57\u6bb5\u8bf4\u660e<\/tr>\n<tbody>\n<tr>\n<td>\u6570\u503c\u53c2\u6570<\/td>\n<td>szjg<\/td>\n<td>\u6570\u503c\u7ed3\u679c<\/td>\n<td>\u6574\u6570\u914d\u7f6e\u9879<\/td>\n<\/tr>\n<tr>\n<td>\u5b57\u7b26\u53c2\u6570<\/td>\n<td>zfjg<\/td>\n<td>\u5b57\u7b26\u7ed3\u679c<\/td>\n<td>\u5b57\u7b26\u4e32\u914d\u7f6e\u9879<\/td>\n<\/tr>\n<tr>\n<td>\u903b\u8f91\u53c2\u6570<\/td>\n<td>ljjg<\/td>\n<td>\u903b\u8f91\u7ed3\u679c<\/td>\n<td>\u5e03\u5c14\u914d\u7f6e\u9879<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h5>3.5.2 \u53c2\u6570\u7f13\u5b58\u673a\u5236<\/h5>\n<p>\u83b7\u53d6\u53c2\u6570\u6d41\u7a0b&#xff1a;<br \/>\n1. \u68c0\u67e5pDTCS\u7f13\u5b58\u8868<br \/>\n2. \u627e\u5230 \u2192 \u8fd4\u56de\u7f13\u5b58\u503c<br \/>\n3. \u672a\u627e\u5230 \u2192 \u521b\u5efa\u9ed8\u8ba4\u503c\u8bb0\u5f55<br \/>\n4. \u6dfb\u52a0\u5230\u7f13\u5b58\u5e76\u8fd4\u56de<\/p>\n<h5>3.5.3 \u76f8\u5173\u65b9\u6cd5<\/h5>\n<table>\n<tr>\u65b9\u6cd5\u540dGet\/Set\u53c2\u6570\u7c7b\u578b\u7f13\u5b58\u7b56\u7565<\/tr>\n<tbody>\n<tr>\n<td>GetSzcs()<\/td>\n<td>\u8bfb\u53d6<\/td>\n<td>\u6570\u503c<\/td>\n<td>\u61d2\u52a0\u8f7d<\/td>\n<\/tr>\n<tr>\n<td>GetZfcs()<\/td>\n<td>\u8bfb\u53d6<\/td>\n<td>\u5b57\u7b26<\/td>\n<td>\u61d2\u52a0\u8f7d<\/td>\n<\/tr>\n<tr>\n<td>GetLjcs()<\/td>\n<td>\u8bfb\u53d6<\/td>\n<td>\u903b\u8f91<\/td>\n<td>\u61d2\u52a0\u8f7d<\/td>\n<\/tr>\n<tr>\n<td>SetZfcs()<\/td>\n<td>\u5199\u5165<\/td>\n<td>\u5b57\u7b26<\/td>\n<td>\u7acb\u5373\u66f4\u65b0<\/td>\n<\/tr>\n<tr>\n<td>SetSzcs()<\/td>\n<td>\u5199\u5165<\/td>\n<td>\u6570\u503c<\/td>\n<td>\u7acb\u5373\u66f4\u65b0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>&#xff08;\u56db&#xff09;\u4f7f\u7528\u793a\u4f8b<\/h3>\n<h4>4.1 \u57fa\u672c\u67e5\u8be2<\/h4>\n<p><span class=\"token comment\">\/\/ \u83b7\u53d6\u5355\u4e2a\u503c<\/span><br \/>\n<span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> userName <span class=\"token operator\">&#061;<\/span> KcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">DBString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;SELECT username FROM users WHERE id&#061;1&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u83b7\u53d6\u6574\u6570<\/span><br \/>\n<span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> userCount <span class=\"token operator\">&#061;<\/span> KcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">DBInteger<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;SELECT COUNT(*) FROM users&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u83b7\u53d6\u6570\u636e\u8868<\/span><br \/>\n<span class=\"token class-name\">DataTable<\/span> dtUsers <span class=\"token operator\">&#061;<\/span> KcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">DtRead<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;SELECT * FROM users WHERE active&#061;true&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h4>4.2 \u6570\u636e\u66f4\u65b0<\/h4>\n<p><span class=\"token comment\">\/\/ \u6267\u884c\u5355\u6761SQL<\/span><br \/>\n<span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> newId <span class=\"token operator\">&#061;<\/span> KcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">DBexec<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;INSERT INTO users(name) VALUES(&#039;test&#039;) RETURNING id&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u6279\u91cf\u66f4\u65b0DataTable<\/span><br \/>\n<span class=\"token class-name\">DataTable<\/span> dtChanges <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">GetChanges<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u83b7\u53d6\u53d8\u66f4\u6570\u636e<\/span><br \/>\n<span class=\"token class-name\"><span class=\"token keyword\">bool<\/span><\/span> success <span class=\"token operator\">&#061;<\/span> KcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">GetDtSaves<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;SELECT * FROM users&#034;<\/span><span class=\"token punctuation\">,<\/span> dtChanges<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h4>4.3 \u591a\u8868\u4e8b\u52a1<\/h4>\n<p><span class=\"token comment\">\/\/ \u540c\u65f6\u66f4\u65b0\u4e09\u4e2a\u76f8\u5173\u8868<\/span><br \/>\n<span class=\"token class-name\"><span class=\"token keyword\">bool<\/span><\/span> result <span class=\"token operator\">&#061;<\/span> KcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">GetDtSaven<\/span><span class=\"token punctuation\">(<\/span><br \/>\n    <span class=\"token string\">&#034;orders&#034;<\/span><span class=\"token punctuation\">,<\/span> dtOrders<span class=\"token punctuation\">,<\/span>        <span class=\"token comment\">\/\/ \u8ba2\u5355\u8868<\/span><br \/>\n    <span class=\"token string\">&#034;order_items&#034;<\/span><span class=\"token punctuation\">,<\/span> dtItems<span class=\"token punctuation\">,<\/span>    <span class=\"token comment\">\/\/ \u8ba2\u5355\u660e\u7ec6<\/span><br \/>\n    <span class=\"token string\">&#034;order_logs&#034;<\/span><span class=\"token punctuation\">,<\/span> dtLogs<span class=\"token punctuation\">,<\/span>      <span class=\"token comment\">\/\/ \u8ba2\u5355\u65e5\u5fd7<\/span><br \/>\n    <span class=\"token string\">&#034;status,total&#034;<\/span><span class=\"token punctuation\">,<\/span>            <span class=\"token comment\">\/\/ orders\u8868\u66f4\u65b0\u5b57\u6bb5<\/span><br \/>\n    <span class=\"token string\">&#034;quantity,price&#034;<\/span><span class=\"token punctuation\">,<\/span>          <span class=\"token comment\">\/\/ order_items\u8868\u66f4\u65b0\u5b57\u6bb5<\/span><br \/>\n    <span class=\"token string\">&#034;&#034;<\/span>                         <span class=\"token comment\">\/\/ order_logs\u5168\u5b57\u6bb5\u66f4\u65b0<\/span><br \/>\n<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h4>4.4 \u53c2\u6570\u7ba1\u7406<\/h4>\n<p><span class=\"token comment\">\/\/ \u8bfb\u53d6\u7cfb\u7edf\u53c2\u6570<\/span><br \/>\n<span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> pageSize <span class=\"token operator\">&#061;<\/span> KcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">GetSzcs<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;PageSize&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">20<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>    <span class=\"token comment\">\/\/ \u9ed8\u8ba420<\/span><br \/>\n<span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> theme <span class=\"token operator\">&#061;<\/span> KcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">GetZfcs<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Theme&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;Default&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u9ed8\u8ba4Default<\/span><br \/>\n<span class=\"token class-name\"><span class=\"token keyword\">bool<\/span><\/span> autoSave <span class=\"token operator\">&#061;<\/span> KcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">GetLjcs<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;AutoSave&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u9ed8\u8ba4true<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u66f4\u65b0\u53c2\u6570<\/span><br \/>\nKcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">SetSzcs<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;PageSize&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">50<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nKcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">SetZfcs<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Theme&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;Dark&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h3>&#xff08;\u4e94&#xff09;\u914d\u7f6e\u4e0e\u4f18\u5316<\/h3>\n<h4>5.1 \u8fde\u63a5\u5b57\u7b26\u4e32\u914d\u7f6e<\/h4>\n<p><span class=\"token comment\">\/\/ \u5efa\u8bae\u6539\u8fdb&#xff1a;\u4f7f\u7528\u8fde\u63a5\u5b57\u7b26\u4e32\u6784\u5efa\u5668<\/span><br \/>\n<span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> builder <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\">NpgsqlConnectionStringBuilder<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    Host <span class=\"token operator\">&#061;<\/span> SvNAME<span class=\"token punctuation\">,<\/span><br \/>\n    Port <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">int<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">Parse<\/span><span class=\"token punctuation\">(<\/span>SvPORT<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    Database <span class=\"token operator\">&#061;<\/span> DBname<span class=\"token punctuation\">,<\/span><br \/>\n    Username <span class=\"token operator\">&#061;<\/span> DLmc<span class=\"token punctuation\">,<\/span><br \/>\n    Password <span class=\"token operator\">&#061;<\/span> DLmm<span class=\"token punctuation\">,<\/span><br \/>\n    Pooling <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">,<\/span>                    <span class=\"token comment\">\/\/ \u542f\u7528\u8fde\u63a5\u6c60<\/span><br \/>\n    MinPoolSize <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">5<\/span><span class=\"token punctuation\">,<\/span>                   <span class=\"token comment\">\/\/ \u6700\u5c0f\u8fde\u63a5\u6570<\/span><br \/>\n    MaxPoolSize <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">,<\/span>                 <span class=\"token comment\">\/\/ \u6700\u5927\u8fde\u63a5\u6570<\/span><br \/>\n    CommandTimeout <span class=\"token operator\">&#061;<\/span> LJtime            <span class=\"token comment\">\/\/ \u547d\u4ee4\u8d85\u65f6<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\nKcCn<span class=\"token punctuation\">.<\/span>ConnectionString <span class=\"token operator\">&#061;<\/span> builder<span class=\"token punctuation\">.<\/span><span class=\"token function\">ToString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h4>5.2 \u6027\u80fd\u4f18\u5316\u5efa\u8bae<\/h4>\n<h5>5.2.1 SQL\u6ce8\u5165\u9632\u62a4<\/h5>\n<p><span class=\"token comment\">\/\/ \u5f53\u524d\u95ee\u9898&#xff1a;\u5b57\u7b26\u4e32\u62fc\u63a5SQL<\/span><br \/>\n<span class=\"token comment\">\/\/ \u5efa\u8bae\u6539\u8fdb&#xff1a;\u4f7f\u7528\u53c2\u6570\u5316\u67e5\u8be2<\/span><br \/>\n<span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> sql <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;SELECT * FROM users WHERE name &#061; &#064;name AND age &gt; &#064;age&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">using<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> cmd <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\">NpgsqlCommand<\/span><span class=\"token punctuation\">(<\/span>sql<span class=\"token punctuation\">,<\/span> KcCn<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    cmd<span class=\"token punctuation\">.<\/span>Parameters<span class=\"token punctuation\">.<\/span><span class=\"token function\">AddWithValue<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;&#064;name&#034;<\/span><span class=\"token punctuation\">,<\/span> userName<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    cmd<span class=\"token punctuation\">.<\/span>Parameters<span class=\"token punctuation\">.<\/span><span class=\"token function\">AddWithValue<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;&#064;age&#034;<\/span><span class=\"token punctuation\">,<\/span> minAge<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/ &#8230; \u6267\u884c<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h5>5.2.2 \u8fde\u63a5\u7ba1\u7406\u4f18\u5316<\/h5>\n<li>\u8fde\u63a5\u6c60&#xff1a;\u542f\u7528\u5e76\u5408\u7406\u914d\u7f6e<\/li>\n<li>\u8fde\u63a5\u590d\u7528&#xff1a;\u907f\u514d\u9891\u7e41\u5f00\u5173\u8fde\u63a5<\/li>\n<li>\u8d85\u65f6\u8bbe\u7f6e&#xff1a;\u6839\u636e\u4e1a\u52a1\u8bbe\u7f6e\u5408\u7406\u8d85\u65f6<\/li>\n<h5>5.2.3 \u6279\u91cf\u64cd\u4f5c\u4f18\u5316<\/h5>\n<li>\u4e8b\u52a1\u4f7f\u7528&#xff1a;\u6279\u91cf\u64cd\u4f5c\u4f7f\u7528\u4e8b\u52a1<\/li>\n<li>\u6279\u91cf\u5927\u5c0f&#xff1a;\u5408\u7406\u63a7\u5236\u5355\u6b21\u66f4\u65b0\u6570\u636e\u91cf<\/li>\n<li>\u7d22\u5f15\u4f18\u5316&#xff1a;\u786e\u4fdd\u66f4\u65b0\u5b57\u6bb5\u6709\u5408\u9002\u7d22\u5f15<\/li>\n<h4>5.3 \u65e5\u5fd7\u914d\u7f6e<\/h4>\n<table>\n<tr>\u914d\u7f6e\u9879\u5b57\u6bb5\u9ed8\u8ba4\u503c\u8bf4\u660e<\/tr>\n<tbody>\n<tr>\n<td>SQL\u65e5\u5fd7<\/td>\n<td>pSFSJ<\/td>\n<td>false<\/td>\n<td>\u662f\u5426\u8bb0\u5f55SQL<\/td>\n<\/tr>\n<tr>\n<td>\u8ba1\u7b97\u65e5\u5fd7<\/td>\n<td>pCSGS<\/td>\n<td>false<\/td>\n<td>\u662f\u5426\u8bb0\u5f55\u8ba1\u7b97<\/td>\n<\/tr>\n<tr>\n<td>\u65e5\u5fd7\u8868<\/td>\n<td>x9_jlsql<\/td>\n<td>&#8211;<\/td>\n<td>SQL\u65e5\u5fd7\u8868<\/td>\n<\/tr>\n<tr>\n<td>\u9519\u8bef\u8868<\/td>\n<td>x9_errcode<\/td>\n<td>&#8211;<\/td>\n<td>\u9519\u8bef\u65e5\u5fd7\u8868<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>&#xff08;\u516d&#xff09;\u5b89\u5168\u6ce8\u610f\u4e8b\u9879<\/h3>\n<h4>6.1 \u6f5c\u5728\u98ce\u9669<\/h4>\n<li>SQL\u6ce8\u5165&#xff1a;\u5b57\u7b26\u4e32\u62fc\u63a5SQL\u8bed\u53e5<\/li>\n<li>\u8fde\u63a5\u6cc4\u9732&#xff1a;\u672a\u6b63\u786e\u5173\u95ed\u8fde\u63a5<\/li>\n<li>\u654f\u611f\u4fe1\u606f&#xff1a;\u5bc6\u7801\u660e\u6587\u4f20\u8f93<\/li>\n<li>\u9519\u8bef\u4fe1\u606f&#xff1a;\u8be6\u7ec6\u9519\u8bef\u66b4\u9732\u7ed9\u7528\u6237<\/li>\n<h4>6.2 \u5b89\u5168\u5efa\u8bae<\/h4>\n<li>\u53c2\u6570\u5316\u67e5\u8be2&#xff1a;\u6240\u6709\u52a8\u6001SQL\u4f7f\u7528\u53c2\u6570<\/li>\n<li>\u8f93\u5165\u9a8c\u8bc1&#xff1a;\u5bf9\u7528\u6237\u8f93\u5165\u8fdb\u884c\u4e25\u683c\u9a8c\u8bc1<\/li>\n<li>\u6700\u5c0f\u6743\u9650&#xff1a;\u6570\u636e\u5e93\u7528\u6237\u4f7f\u7528\u6700\u5c0f\u5fc5\u8981\u6743\u9650<\/li>\n<li>\u9519\u8bef\u5904\u7406&#xff1a;\u751f\u4ea7\u73af\u5883\u9690\u85cf\u8be6\u7ec6\u9519\u8bef<\/li>\n<li>\u8fde\u63a5\u52a0\u5bc6&#xff1a;\u4f7f\u7528SSL\u8fde\u63a5\u6570\u636e\u5e93<\/li>\n<h4>6.3 \u5ba1\u8ba1\u65e5\u5fd7<\/h4>\n<ul>\n<li>\u6240\u6709SQL\u64cd\u4f5c\u53ef\u901a\u8fc7x9_jlsql\u8868\u5ba1\u8ba1<\/li>\n<li>\u9519\u8bef\u4fe1\u606f\u8bb0\u5f55\u5728x9_errcode\u8868<\/li>\n<li>\u652f\u6301\u64cd\u4f5c\u8ffd\u8e2a\u548c\u6545\u969c\u6392\u67e5<\/li>\n<\/ul>\n<h3>&#xff08;\u4e03&#xff09;\u6269\u5c55\u4e0e\u7ef4\u62a4<\/h3>\n<h4>7.1 \u6269\u5c55\u5efa\u8bae<\/h4>\n<li>\u5f02\u6b65\u652f\u6301&#xff1a;\u6dfb\u52a0\u5f02\u6b65\u65b9\u6cd5&#xff08;async\/await&#xff09;<\/li>\n<li>ORM\u96c6\u6210&#xff1a;\u8003\u8651\u96c6\u6210Dapper\u6216Entity Framework<\/li>\n<li>\u914d\u7f6e\u5916\u90e8\u5316&#xff1a;\u8fde\u63a5\u5b57\u7b26\u4e32\u79fb\u5230\u914d\u7f6e\u6587\u4ef6\u4e2d<\/li>\n<li>\u4f9d\u8d56\u6ce8\u5165&#xff1a;\u6539\u9020\u4e3a\u53ef\u6ce8\u5165\u670d\u52a1<\/li>\n<h4>7.2 \u7ef4\u62a4\u5efa\u8bae<\/h4>\n<li>\u7248\u672c\u63a7\u5236&#xff1a;\u8bb0\u5f55\u91cd\u8981\u7684\u4fee\u6539\u5386\u53f2<\/li>\n<li>\u5355\u5143\u6d4b\u8bd5&#xff1a;\u4e3a\u5173\u952e\u65b9\u6cd5\u7f16\u5199\u5355\u5143\u6d4b\u8bd5<\/li>\n<li>\u6587\u6863\u66f4\u65b0&#xff1a;\u4ee3\u7801\u53d8\u66f4\u65f6\u540c\u6b65\u66f4\u65b0\u6587\u6863<\/li>\n<li>\u4ee3\u7801\u5ba1\u67e5&#xff1a;\u5b9a\u671f\u8fdb\u884c\u4ee3\u7801\u5b89\u5168\u5ba1\u67e5<\/li>\n<h4>7.3 \u517c\u5bb9\u6027\u8bf4\u660e<\/h4>\n<ul>\n<li>.NET\u7248\u672c&#xff1a;.NET Framework 4.7.2<\/li>\n<li>\u6570\u636e\u5e93&#xff1a;PostgreSQL 9.0&#043;<\/li>\n<li>Npgsql&#xff1a;Version 4.x<\/li>\n<li>DevExpress&#xff1a;\u76f8\u5173UI\u7ec4\u4ef6\u7248\u672c<\/li>\n<\/ul>\n<h3>&#xff08;\u516b&#xff09;\u6545\u969c\u6392\u67e5<\/h3>\n<h4>8.1 \u5e38\u89c1\u95ee\u9898<\/h4>\n<h5>\u95ee\u98981&#xff1a;\u8fde\u63a5\u5931\u8d25<\/h5>\n<p>\u53ef\u80fd\u539f\u56e0&#xff1a;<br \/>\n1. \u670d\u52a1\u5668\u5730\u5740\/\u7aef\u53e3\u9519\u8bef<br \/>\n2. \u6570\u636e\u5e93\u540d\u9519\u8bef<br \/>\n3. \u7528\u6237\u540d\/\u5bc6\u7801\u9519\u8bef<br \/>\n4. \u7f51\u7edc\u4e0d\u901a<br \/>\n5. PostgreSQL\u670d\u52a1\u672a\u542f\u52a8<\/p>\n<p>\u6392\u67e5\u6b65\u9aa4&#xff1a;<br \/>\n1. \u68c0\u67e5SvNAME\u3001SvPORT\u3001DBname<br \/>\n2. \u9a8c\u8bc1DLmc\u3001DLmm<br \/>\n3. \u4f7f\u7528pgAdmin\u7b49\u5de5\u5177\u6d4b\u8bd5\u8fde\u63a5<br \/>\n4. \u68c0\u67e5\u9632\u706b\u5899\u8bbe\u7f6e<\/p>\n<h5>\u95ee\u98982&#xff1a;SQL\u6267\u884c\u8d85\u65f6<\/h5>\n<p>\u53ef\u80fd\u539f\u56e0&#xff1a;<br \/>\n1. SQL\u8bed\u53e5\u6548\u7387\u4f4e<br \/>\n2. \u6570\u636e\u91cf\u8fc7\u5927<br \/>\n3. \u7f51\u7edc\u5ef6\u8fdf<br \/>\n4. \u6570\u636e\u5e93\u8d1f\u8f7d\u9ad8<\/p>\n<p>\u89e3\u51b3\u65b9\u6848&#xff1a;<br \/>\n1. \u4f18\u5316SQL\u8bed\u53e5&#xff0c;\u6dfb\u52a0\u7d22\u5f15<br \/>\n2. \u5206\u9875\u67e5\u8be2\u5927\u6570\u636e<br \/>\n3. \u8c03\u6574LJtime\u8d85\u65f6\u65f6\u95f4<br \/>\n4. \u68c0\u67e5\u6570\u636e\u5e93\u6027\u80fd<\/p>\n<h5>\u95ee\u98983&#xff1a;\u6570\u636e\u540c\u6b65\u5931\u8d25<\/h5>\n<p>\u53ef\u80fd\u539f\u56e0&#xff1a;<br \/>\n1. \u6570\u636e\u7c7b\u578b\u4e0d\u5339\u914d<br \/>\n2. \u4e3b\u952e\u7ea6\u675f\u51b2\u7a81<br \/>\n3. \u5916\u952e\u7ea6\u675f\u8fdd\u53cd<br \/>\n4. \u6743\u9650\u4e0d\u8db3<\/p>\n<p>\u6392\u67e5\u65b9\u6cd5&#xff1a;<br \/>\n1. \u68c0\u67e5DtMsg()\u9519\u8bef\u4fe1\u606f<br \/>\n2. \u67e5\u770bx9_errcode\u8868\u8bb0\u5f55<br \/>\n3. \u9a8c\u8bc1DataTable\u7ed3\u6784<br \/>\n4. \u68c0\u67e5\u6570\u636e\u5e93\u7ea6\u675f<\/p>\n<h4>8.2 \u8c03\u8bd5\u6280\u5de7<\/h4>\n<li>\u542f\u7528SQL\u65e5\u5fd7&#xff1a;\u8bbe\u7f6epSFSJ &#061; true<\/li>\n<li>\u67e5\u770b\u9519\u8bef\u8868&#xff1a;SELECT * FROM x9_errcode<\/li>\n<li>\u4f7f\u7528\u5de5\u5177&#xff1a;pgAdmin\u3001Npgsql\u65e5\u5fd7<\/li>\n<li>\u5206\u6b65\u8c03\u8bd5&#xff1a;\u590d\u6742\u64cd\u4f5c\u5206\u6b65\u6267\u884c\u9a8c\u8bc1<\/li>\n<h3>&#xff08;\u4e5d&#xff09;\u603b\u7ed3<\/h3>\n<h4>9.1 \u4f18\u70b9<\/h4>\n<li>\u529f\u80fd\u5168\u9762&#xff1a;\u8986\u76d6\u5927\u90e8\u5206\u6570\u636e\u5e93\u64cd\u4f5c\u9700\u6c42<\/li>\n<li>\u4f7f\u7528\u7b80\u5355&#xff1a;\u63d0\u4f9b\u7edf\u4e00\u7684\u9759\u6001\u65b9\u6cd5\u8c03\u7528<\/li>\n<li>\u9519\u8bef\u5904\u7406\u5b8c\u5584&#xff1a;\u5b8c\u6574\u7684\u9519\u8bef\u8bb0\u5f55\u548c\u63d0\u793a<\/li>\n<li>\u53c2\u6570\u7ba1\u7406&#xff1a;\u5185\u7f6e\u53c2\u6570\u7f13\u5b58\u673a\u5236<\/li>\n<li>\u65e5\u5fd7\u5b8c\u6574&#xff1a;\u652f\u6301\u64cd\u4f5c\u5ba1\u8ba1\u548c\u6545\u969c\u6392\u67e5<\/li>\n<h4>9.2 \u5f85\u6539\u8fdb<\/h4>\n<li>\u5b89\u5168\u6027&#xff1a;\u9700\u8981\u52a0\u5f3aSQL\u6ce8\u5165\u9632\u62a4<\/li>\n<li>\u6027\u80fd&#xff1a;\u5927\u6570\u636e\u91cf\u64cd\u4f5c\u9700\u8981\u4f18\u5316<\/li>\n<li>\u67b6\u6784&#xff1a;\u53ef\u8003\u8651\u670d\u52a1\u5316\u548c\u4f9d\u8d56\u6ce8\u5165<\/li>\n<li>\u5f02\u6b65&#xff1a;\u7f3a\u4e4f\u5f02\u6b65\u64cd\u4f5c\u652f\u6301<\/li>\n<h4>9.3 \u9002\u7528\u573a\u666f<\/h4>\n<ul>\n<li>\u4e2d\u5c0f\u578bERP\u7cfb\u7edf<\/li>\n<li>\u4f20\u7edfWinForms\u5e94\u7528\u7a0b\u5e8f<\/li>\n<li>\u9700\u8981\u5feb\u901f\u5f00\u53d1\u7684\u6570\u636e\u5bc6\u96c6\u578b\u5e94\u7528<\/li>\n<li>\u5df2\u6709\u5927\u91cfDataTable\u64cd\u4f5c\u903b\u8f91\u7684\u7cfb\u7edf<\/li>\n<\/ul>\n<h2>\u56db\u3001\u6570\u636e\u5904\u7406\u65b9\u6cd5<\/h2>\n<p>\u4f7f\u7528 DAO.NET \u901a\u8fc7 KcDb \u9759\u6001\u7c7b\u8fdb\u884c\u6570\u636e\u5904\u7406\u3002<\/p>\n<h3>&#xff08;\u4e00&#xff09;DAO.NET \u7b80\u4ecb\u4e0e\u96c6\u6210\u65b9\u6848<\/h3>\n<h4>1.1 \u4ec0\u4e48\u662f DAO.NET&#xff1f;<\/h4>\n<p>DAO.NET&#xff08;Data Access Objects for .NET&#xff09;\u662f\u4e00\u79cd\u6570\u636e\u8bbf\u95ee\u6a21\u5f0f&#xff0c;\u5c06\u6570\u636e\u8bbf\u95ee\u903b\u8f91\u4ece\u4e1a\u52a1\u903b\u8f91\u4e2d\u5206\u79bb\u51fa\u6765&#xff0c;\u63d0\u4f9b\u6807\u51c6\u5316\u7684\u6570\u636e\u8bbf\u95ee\u63a5\u53e3\u3002<\/p>\n<h4>1.2 \u4e0e KcDb \u7684\u96c6\u6210\u65b9\u5f0f<\/h4>\n<p>\u7531\u4e8e KcDb \u5df2\u7ecf\u662f\u9759\u6001\u7c7b&#xff0c;\u6211\u4eec\u53ef\u4ee5\u521b\u5efa DAO \u5c42\u6765\u5c01\u88c5\u5bf9 KcDb \u7684\u8c03\u7528&#xff0c;\u5b9e\u73b0&#xff1a;<\/p>\n<li>\u4e1a\u52a1\u903b\u8f91\u4e0e\u6570\u636e\u8bbf\u95ee\u5206\u79bb<\/li>\n<li>\u66f4\u597d\u7684\u53ef\u6d4b\u8bd5\u6027<\/li>\n<li>\u4ee3\u7801\u590d\u7528\u548c\u6807\u51c6\u5316<\/li>\n<li>\u4e8b\u52a1\u7ba1\u7406\u4f18\u5316<\/li>\n<h3>&#xff08;\u4e8c&#xff09;\u57fa\u7840 DAO \u7c7b\u8bbe\u8ba1<\/h3>\n<h4>2.1 \u57fa\u7840\u5b9e\u4f53\u7c7b<\/h4>\n<p><span class=\"token comment\">\/\/ \u57fa\u7840\u5b9e\u4f53\u63a5\u53e3<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">interface<\/span> <span class=\"token class-name\">IEntity<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token return-type class-name\"><span class=\"token keyword\">int<\/span><\/span> Id <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token return-type class-name\">DateTime<\/span> CreateTime <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token return-type class-name\">DateTime<span class=\"token punctuation\">?<\/span><\/span> UpdateTime <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token return-type class-name\"><span class=\"token keyword\">string<\/span><\/span> CreateUser <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u57fa\u7840\u5b9e\u4f53\u5b9e\u73b0<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">abstract<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">BaseEntity<\/span> <span class=\"token punctuation\">:<\/span> <span class=\"token type-list\"><span class=\"token class-name\">IEntity<\/span><\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">int<\/span><\/span> Id <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\">DateTime<\/span> CreateTime <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span> <span class=\"token operator\">&#061;<\/span> DateTime<span class=\"token punctuation\">.<\/span>Now<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\">DateTime<span class=\"token punctuation\">?<\/span><\/span> UpdateTime <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">string<\/span><\/span> CreateUser <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span> <span class=\"token operator\">&#061;<\/span> KcDb<span class=\"token punctuation\">.<\/span>JLyh<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u5176\u4ed6\u516c\u5171\u5c5e\u6027<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">bool<\/span><\/span> IsDeleted <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">int<\/span><\/span> Version <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>2.2 \u57fa\u7840 DAO \u63a5\u53e3<\/h4>\n<p><span class=\"token comment\">\/\/ \u6cdb\u578b DAO \u63a5\u53e3<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">interface<\/span> <span class=\"token class-name\">IBaseDao<span class=\"token punctuation\">&lt;<\/span>T<span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token keyword\">where<\/span> <span class=\"token class-name\">T<\/span> <span class=\"token punctuation\">:<\/span> <span class=\"token type-list\"><span class=\"token class-name\">IEntity<\/span><\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u57fa\u672c CRUD \u64cd\u4f5c<\/span><br \/>\n    <span class=\"token return-type class-name\">T<\/span> <span class=\"token function\">GetById<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> id<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token return-type class-name\">List<span class=\"token punctuation\">&lt;<\/span>T<span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">GetAll<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token return-type class-name\">List<span class=\"token punctuation\">&lt;<\/span>T<span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">GetByCondition<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> whereClause<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">params<\/span> <span class=\"token class-name\"><span class=\"token keyword\">object<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><\/span> parameters<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token return-type class-name\"><span class=\"token keyword\">int<\/span><\/span> <span class=\"token function\">Insert<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">T<\/span> entity<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token return-type class-name\"><span class=\"token keyword\">bool<\/span><\/span> <span class=\"token function\">Update<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">T<\/span> entity<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token return-type class-name\"><span class=\"token keyword\">bool<\/span><\/span> <span class=\"token function\">Delete<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> id<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\"><span class=\"token keyword\">bool<\/span><\/span> softDelete <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token return-type class-name\"><span class=\"token keyword\">bool<\/span><\/span> <span class=\"token function\">Exists<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> id<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u5206\u9875\u67e5\u8be2<\/span><br \/>\n    <span class=\"token return-type class-name\">PagedResult<span class=\"token punctuation\">&lt;<\/span>T<span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">GetPaged<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> pageIndex<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> pageSize<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> orderBy <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;Id&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token return-type class-name\">PagedResult<span class=\"token punctuation\">&lt;<\/span>T<span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">GetPagedWithCondition<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> pageIndex<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> pageSize<span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> whereClause<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> orderBy <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;Id&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">params<\/span> <span class=\"token class-name\"><span class=\"token keyword\">object<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><\/span> parameters<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u6279\u91cf\u64cd\u4f5c<\/span><br \/>\n    <span class=\"token return-type class-name\"><span class=\"token keyword\">bool<\/span><\/span> <span class=\"token function\">BulkInsert<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">List<span class=\"token punctuation\">&lt;<\/span>T<span class=\"token punctuation\">&gt;<\/span><\/span> entities<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token return-type class-name\"><span class=\"token keyword\">bool<\/span><\/span> <span class=\"token function\">BulkUpdate<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">List<span class=\"token punctuation\">&lt;<\/span>T<span class=\"token punctuation\">&gt;<\/span><\/span> entities<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5206\u9875\u7ed3\u679c\u7c7b<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">PagedResult<span class=\"token punctuation\">&lt;<\/span>T<span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\">List<span class=\"token punctuation\">&lt;<\/span>T<span class=\"token punctuation\">&gt;<\/span><\/span> Data <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">int<\/span><\/span> TotalCount <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">int<\/span><\/span> PageIndex <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">int<\/span><\/span> PageSize <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">int<\/span><\/span> TotalPages <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span><span class=\"token punctuation\">)<\/span>Math<span class=\"token punctuation\">.<\/span><span class=\"token function\">Ceiling<\/span><span class=\"token punctuation\">(<\/span>TotalCount <span class=\"token operator\">\/<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">double<\/span><span class=\"token punctuation\">)<\/span>PageSize<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>2.3 \u57fa\u7840 DAO \u5b9e\u73b0<\/h4>\n<p><span class=\"token comment\">\/\/ \u57fa\u7840 DAO \u5b9e\u73b0&#xff08;\u62bd\u8c61\u7c7b&#xff09;<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">abstract<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">BaseDao<span class=\"token punctuation\">&lt;<\/span>T<span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token punctuation\">:<\/span> <span class=\"token type-list\"><span class=\"token class-name\">IBaseDao<span class=\"token punctuation\">&lt;<\/span>T<span class=\"token punctuation\">&gt;<\/span><\/span><\/span> <span class=\"token keyword\">where<\/span> <span class=\"token class-name\">T<\/span> <span class=\"token punctuation\">:<\/span> <span class=\"token type-list\"><span class=\"token class-name\">IEntity<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">new<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u8868\u540d&#xff08;\u7531\u5b50\u7c7b\u6307\u5b9a&#xff09;<\/span><br \/>\n    <span class=\"token keyword\">protected<\/span> <span class=\"token keyword\">abstract<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">string<\/span><\/span> TableName <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u4e3b\u952e\u5b57\u6bb5\u540d<\/span><br \/>\n    <span class=\"token keyword\">protected<\/span> <span class=\"token keyword\">virtual<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">string<\/span><\/span> PrimaryKey <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token string\">&#034;Id&#034;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u83b7\u53d6\u6570\u636e\u5e93\u8fde\u63a5&#xff08;\u901a\u8fc7 KcDb&#xff09;<\/span><br \/>\n    <span class=\"token keyword\">protected<\/span> <span class=\"token return-type class-name\">NpgsqlConnection<\/span> <span class=\"token function\">GetConnection<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        KcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">DBopen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> KcDb<span class=\"token punctuation\">.<\/span>KcCn<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 1. \u6839\u636eID\u83b7\u53d6\u5b9e\u4f53<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">virtual<\/span> <span class=\"token return-type class-name\">T<\/span> <span class=\"token function\">GetById<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> id<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> sql <span class=\"token operator\">&#061;<\/span> <span class=\"token interpolation-string\"><span class=\"token string\">$&#034;SELECT * FROM <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">TableName<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> WHERE <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">PrimaryKey<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> &#061; <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">id<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> AND IsDeleted &#061; false&#034;<\/span><\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">try<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\">DataTable<\/span> dt <span class=\"token operator\">&#061;<\/span> KcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">DtRead<\/span><span class=\"token punctuation\">(<\/span>sql<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>dt <span class=\"token operator\">!&#061;<\/span> <span class=\"token keyword\">null<\/span> <span class=\"token operator\">&amp;&amp;<\/span> dt<span class=\"token punctuation\">.<\/span>Rows<span class=\"token punctuation\">.<\/span>Count <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token keyword\">return<\/span> <span class=\"token function\">MapDataRowToEntity<\/span><span class=\"token punctuation\">(<\/span>dt<span class=\"token punctuation\">.<\/span>Rows<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">default<\/span><span class=\"token punctuation\">(<\/span><span class=\"token type-expression class-name\">T<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Exception<\/span> ex<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u8bb0\u5f55\u65e5\u5fd7<\/span><br \/>\n            <span class=\"token function\">LogError<\/span><span class=\"token punctuation\">(<\/span><span class=\"token interpolation-string\"><span class=\"token string\">$&#034;GetById failed for <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">TableName<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">, ID: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">id<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">,<\/span> ex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 2. \u83b7\u53d6\u6240\u6709\u8bb0\u5f55<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">virtual<\/span> <span class=\"token return-type class-name\">List<span class=\"token punctuation\">&lt;<\/span>T<span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">GetAll<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> sql <span class=\"token operator\">&#061;<\/span> <span class=\"token interpolation-string\"><span class=\"token string\">$&#034;SELECT * FROM <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">TableName<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> WHERE IsDeleted &#061; false ORDER BY <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">PrimaryKey<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">try<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\">DataTable<\/span> dt <span class=\"token operator\">&#061;<\/span> KcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">DtRead<\/span><span class=\"token punctuation\">(<\/span>sql<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token function\">MapDataTableToList<\/span><span class=\"token punctuation\">(<\/span>dt<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Exception<\/span> ex<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token function\">LogError<\/span><span class=\"token punctuation\">(<\/span><span class=\"token interpolation-string\"><span class=\"token string\">$&#034;GetAll failed for <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">TableName<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">,<\/span> ex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 3. \u6761\u4ef6\u67e5\u8be2<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">virtual<\/span> <span class=\"token return-type class-name\">List<span class=\"token punctuation\">&lt;<\/span>T<span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">GetByCondition<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> whereClause<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">params<\/span> <span class=\"token class-name\"><span class=\"token keyword\">object<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><\/span> parameters<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> sql <span class=\"token operator\">&#061;<\/span> <span class=\"token interpolation-string\"><span class=\"token string\">$&#034;SELECT * FROM <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">TableName<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> WHERE IsDeleted &#061; false&#034;<\/span><\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span><span class=\"token keyword\">string<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">IsNullOrEmpty<\/span><span class=\"token punctuation\">(<\/span>whereClause<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            sql <span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token interpolation-string\"><span class=\"token string\">$&#034; AND (<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">whereClause<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">)&#034;<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u5982\u679c\u6709\u53c2\u6570&#xff0c;\u6784\u5efa\u53c2\u6570\u5316\u67e5\u8be2&#xff08;\u7b80\u5316\u7248&#xff09;<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>parameters <span class=\"token operator\">!&#061;<\/span> <span class=\"token keyword\">null<\/span> <span class=\"token operator\">&amp;&amp;<\/span> parameters<span class=\"token punctuation\">.<\/span>Length <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u5b9e\u9645\u9879\u76ee\u4e2d\u5e94\u8be5\u4f7f\u7528\u53c2\u6570\u5316\u67e5\u8be2<\/span><br \/>\n            <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> parameters<span class=\"token punctuation\">.<\/span>Length<span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token comment\">\/\/ \u7b80\u5355\u7684\u53c2\u6570\u66ff\u6362&#xff08;\u6ce8\u610fSQL\u6ce8\u5165\u98ce\u9669&#xff0c;\u5b9e\u9645\u9879\u76ee\u5e94\u8be5\u7528\u53c2\u6570\u5316&#xff09;<\/span><br \/>\n                sql <span class=\"token operator\">&#061;<\/span> sql<span class=\"token punctuation\">.<\/span><span class=\"token function\">Replace<\/span><span class=\"token punctuation\">(<\/span><span class=\"token interpolation-string\"><span class=\"token string\">$&#034;{{<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">i<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">}}&#034;<\/span><\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">EscapeSqlValue<\/span><span class=\"token punctuation\">(<\/span>parameters<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token keyword\">try<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\">DataTable<\/span> dt <span class=\"token operator\">&#061;<\/span> KcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">DtRead<\/span><span class=\"token punctuation\">(<\/span>sql<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token function\">MapDataTableToList<\/span><span class=\"token punctuation\">(<\/span>dt<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Exception<\/span> ex<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token function\">LogError<\/span><span class=\"token punctuation\">(<\/span><span class=\"token interpolation-string\"><span class=\"token string\">$&#034;GetByCondition failed for <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">TableName<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">,<\/span> ex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 4. \u63d2\u5165\u5b9e\u4f53<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">virtual<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">int<\/span><\/span> <span class=\"token function\">Insert<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">T<\/span> entity<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>entity <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\">ArgumentNullException<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">nameof<\/span><span class=\"token punctuation\">(<\/span>entity<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u8bbe\u7f6e\u521b\u5efa\u4fe1\u606f<\/span><br \/>\n        entity<span class=\"token punctuation\">.<\/span>CreateTime <span class=\"token operator\">&#061;<\/span> DateTime<span class=\"token punctuation\">.<\/span>Now<span class=\"token punctuation\">;<\/span><br \/>\n        entity<span class=\"token punctuation\">.<\/span>CreateUser <span class=\"token operator\">&#061;<\/span> KcDb<span class=\"token punctuation\">.<\/span>JLyh<span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u6784\u5efaINSERT SQL<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> properties <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">GetInsertProperties<\/span><span class=\"token punctuation\">(<\/span>entity<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> columns <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">string<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">Join<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;, &#034;<\/span><span class=\"token punctuation\">,<\/span> properties<span class=\"token punctuation\">.<\/span>Keys<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> values <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">string<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">Join<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;, &#034;<\/span><span class=\"token punctuation\">,<\/span> properties<span class=\"token punctuation\">.<\/span>Values<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> sql <span class=\"token operator\">&#061;<\/span> <span class=\"token interpolation-string\"><span class=\"token string\">$&#034;INSERT INTO <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">TableName<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> (<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">columns<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">) VALUES (<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">values<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">) RETURNING <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">PrimaryKey<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">try<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> result <span class=\"token operator\">&#061;<\/span> KcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">DBexec<\/span><span class=\"token punctuation\">(<\/span>sql<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span><span class=\"token keyword\">string<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">IsNullOrEmpty<\/span><span class=\"token punctuation\">(<\/span>result<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&amp;&amp;<\/span> <span class=\"token keyword\">int<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">TryParse<\/span><span class=\"token punctuation\">(<\/span>result<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">out<\/span> <span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> newId<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">{<\/span><br \/>\n                entity<span class=\"token punctuation\">.<\/span>Id <span class=\"token operator\">&#061;<\/span> newId<span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token keyword\">return<\/span> newId<span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Exception<\/span> ex<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token function\">LogError<\/span><span class=\"token punctuation\">(<\/span><span class=\"token interpolation-string\"><span class=\"token string\">$&#034;Insert failed for <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">TableName<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">,<\/span> ex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 5. \u66f4\u65b0\u5b9e\u4f53<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">virtual<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">bool<\/span><\/span> <span class=\"token function\">Update<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">T<\/span> entity<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>entity <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">null<\/span> <span class=\"token operator\">||<\/span> entity<span class=\"token punctuation\">.<\/span>Id <span class=\"token operator\">&lt;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\">ArgumentException<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Invalid entity or ID&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u8bbe\u7f6e\u66f4\u65b0\u4fe1\u606f<\/span><br \/>\n        entity<span class=\"token punctuation\">.<\/span>UpdateTime <span class=\"token operator\">&#061;<\/span> DateTime<span class=\"token punctuation\">.<\/span>Now<span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u6784\u5efaUPDATE SQL<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> updateFields <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">GetUpdateProperties<\/span><span class=\"token punctuation\">(<\/span>entity<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>updateFields<span class=\"token punctuation\">.<\/span>Count <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> setClause <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">string<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">Join<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;, &#034;<\/span><span class=\"token punctuation\">,<\/span> updateFields<span class=\"token punctuation\">.<\/span><span class=\"token function\">Select<\/span><span class=\"token punctuation\">(<\/span>kv <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token interpolation-string\"><span class=\"token string\">$&#034;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">kv<span class=\"token punctuation\">.<\/span>Key<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> &#061; <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">kv<span class=\"token punctuation\">.<\/span>Value<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> sql <span class=\"token operator\">&#061;<\/span> <span class=\"token interpolation-string\"><span class=\"token string\">$&#034;UPDATE <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">TableName<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> SET <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">setClause<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> WHERE <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">PrimaryKey<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> &#061; <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">entity<span class=\"token punctuation\">.<\/span>Id<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">try<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            KcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">DBexec<\/span><span class=\"token punctuation\">(<\/span>sql<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Exception<\/span> ex<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token function\">LogError<\/span><span class=\"token punctuation\">(<\/span><span class=\"token interpolation-string\"><span class=\"token string\">$&#034;Update failed for <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">TableName<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">, ID: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">entity<span class=\"token punctuation\">.<\/span>Id<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">,<\/span> ex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 6. \u5220\u9664\u5b9e\u4f53<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">virtual<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">bool<\/span><\/span> <span class=\"token function\">Delete<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> id<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\"><span class=\"token keyword\">bool<\/span><\/span> softDelete <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>id <span class=\"token operator\">&lt;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> sql<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>softDelete<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u8f6f\u5220\u9664<\/span><br \/>\n            sql <span class=\"token operator\">&#061;<\/span> <span class=\"token interpolation-string\"><span class=\"token string\">$&#034;UPDATE <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">TableName<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> SET IsDeleted &#061; true, UpdateTime &#061; NOW() WHERE <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">PrimaryKey<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> &#061; <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">id<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">else<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u786c\u5220\u9664<\/span><br \/>\n            sql <span class=\"token operator\">&#061;<\/span> <span class=\"token interpolation-string\"><span class=\"token string\">$&#034;DELETE FROM <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">TableName<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> WHERE <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">PrimaryKey<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> &#061; <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">id<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token keyword\">try<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            KcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">DBexec<\/span><span class=\"token punctuation\">(<\/span>sql<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Exception<\/span> ex<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token function\">LogError<\/span><span class=\"token punctuation\">(<\/span><span class=\"token interpolation-string\"><span class=\"token string\">$&#034;Delete failed for <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">TableName<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">, ID: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">id<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">,<\/span> ex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 7. \u68c0\u67e5\u662f\u5426\u5b58\u5728<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">virtual<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">bool<\/span><\/span> <span class=\"token function\">Exists<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> id<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> sql <span class=\"token operator\">&#061;<\/span> <span class=\"token interpolation-string\"><span class=\"token string\">$&#034;SELECT COUNT(1) FROM <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">TableName<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> WHERE <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">PrimaryKey<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> &#061; <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">id<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> AND IsDeleted &#061; false&#034;<\/span><\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">try<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> count <span class=\"token operator\">&#061;<\/span> KcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">DBInteger<\/span><span class=\"token punctuation\">(<\/span>sql<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> count <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Exception<\/span> ex<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token function\">LogError<\/span><span class=\"token punctuation\">(<\/span><span class=\"token interpolation-string\"><span class=\"token string\">$&#034;Exists check failed for <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">TableName<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">, ID: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">id<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">,<\/span> ex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 8. \u5206\u9875\u67e5\u8be2<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">virtual<\/span> <span class=\"token return-type class-name\">PagedResult<span class=\"token punctuation\">&lt;<\/span>T<span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">GetPaged<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> pageIndex<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> pageSize<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> orderBy <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;Id&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>pageIndex <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> pageIndex <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>pageSize <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> pageSize <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> offset <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span>pageIndex <span class=\"token operator\">&#8211;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">*<\/span> pageSize<span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u83b7\u53d6\u603b\u6570<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> countSql <span class=\"token operator\">&#061;<\/span> <span class=\"token interpolation-string\"><span class=\"token string\">$&#034;SELECT COUNT(*) FROM <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">TableName<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> WHERE IsDeleted &#061; false&#034;<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> totalCount <span class=\"token operator\">&#061;<\/span> KcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">DBInteger<\/span><span class=\"token punctuation\">(<\/span>countSql<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u83b7\u53d6\u5206\u9875\u6570\u636e<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> dataSql <span class=\"token operator\">&#061;<\/span> <span class=\"token interpolation-string\"><span class=\"token string\">$&#064;&#034;<br \/>\n            SELECT * FROM <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">TableName<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"><br \/>\n            WHERE IsDeleted &#061; false<br \/>\n            ORDER BY <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">orderBy<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"><br \/>\n            LIMIT <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">pageSize<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> OFFSET <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">offset<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">try<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\">DataTable<\/span> dt <span class=\"token operator\">&#061;<\/span> KcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">DtRead<\/span><span class=\"token punctuation\">(<\/span>dataSql<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token class-name\">List<span class=\"token punctuation\">&lt;<\/span>T<span class=\"token punctuation\">&gt;<\/span><\/span> data <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">MapDataTableToList<\/span><span class=\"token punctuation\">(<\/span>dt<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>            <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\">PagedResult<span class=\"token punctuation\">&lt;<\/span>T<span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n            <span class=\"token punctuation\">{<\/span><br \/>\n                Data <span class=\"token operator\">&#061;<\/span> data<span class=\"token punctuation\">,<\/span><br \/>\n                TotalCount <span class=\"token operator\">&#061;<\/span> totalCount<span class=\"token punctuation\">,<\/span><br \/>\n                PageIndex <span class=\"token operator\">&#061;<\/span> pageIndex<span class=\"token punctuation\">,<\/span><br \/>\n                PageSize <span class=\"token operator\">&#061;<\/span> pageSize<br \/>\n            <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Exception<\/span> ex<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token function\">LogError<\/span><span class=\"token punctuation\">(<\/span><span class=\"token interpolation-string\"><span class=\"token string\">$&#034;GetPaged failed for <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">TableName<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">,<\/span> ex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 9. \u5e26\u6761\u4ef6\u7684\u5206\u9875\u67e5\u8be2<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">virtual<\/span> <span class=\"token return-type class-name\">PagedResult<span class=\"token punctuation\">&lt;<\/span>T<span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">GetPagedWithCondition<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> pageIndex<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> pageSize<span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> whereClause<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> orderBy <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;Id&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">params<\/span> <span class=\"token class-name\"><span class=\"token keyword\">object<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><\/span> parameters<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>pageIndex <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> pageIndex <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>pageSize <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> pageSize <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> offset <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span>pageIndex <span class=\"token operator\">&#8211;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">*<\/span> pageSize<span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u6784\u5efaWHERE\u6761\u4ef6<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> <span class=\"token keyword\">where<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;IsDeleted &#061; false&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span><span class=\"token keyword\">string<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">IsNullOrEmpty<\/span><span class=\"token punctuation\">(<\/span>whereClause<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">where<\/span> <span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token interpolation-string\"><span class=\"token string\">$&#034; AND (<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">whereClause<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">)&#034;<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u53c2\u6570\u5904\u7406<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>parameters <span class=\"token operator\">!&#061;<\/span> <span class=\"token keyword\">null<\/span> <span class=\"token operator\">&amp;&amp;<\/span> parameters<span class=\"token punctuation\">.<\/span>Length <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> parameters<span class=\"token punctuation\">.<\/span>Length<span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token keyword\">where<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">where<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">Replace<\/span><span class=\"token punctuation\">(<\/span><span class=\"token interpolation-string\"><span class=\"token string\">$&#034;{{<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">i<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">}}&#034;<\/span><\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">EscapeSqlValue<\/span><span class=\"token punctuation\">(<\/span>parameters<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u83b7\u53d6\u603b\u6570<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> countSql <span class=\"token operator\">&#061;<\/span> <span class=\"token interpolation-string\"><span class=\"token string\">$&#034;SELECT COUNT(*) FROM <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">TableName<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> WHERE <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\"><span class=\"token keyword\">where<\/span><\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> totalCount <span class=\"token operator\">&#061;<\/span> KcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">DBInteger<\/span><span class=\"token punctuation\">(<\/span>countSql<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u83b7\u53d6\u5206\u9875\u6570\u636e<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> dataSql <span class=\"token operator\">&#061;<\/span> <span class=\"token interpolation-string\"><span class=\"token string\">$&#064;&#034;<br \/>\n            SELECT * FROM <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">TableName<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"><br \/>\n            WHERE <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\"><span class=\"token keyword\">where<\/span><\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"><br \/>\n            ORDER BY <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">orderBy<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"><br \/>\n            LIMIT <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">pageSize<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> OFFSET <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">offset<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">try<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\">DataTable<\/span> dt <span class=\"token operator\">&#061;<\/span> KcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">DtRead<\/span><span class=\"token punctuation\">(<\/span>dataSql<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token class-name\">List<span class=\"token punctuation\">&lt;<\/span>T<span class=\"token punctuation\">&gt;<\/span><\/span> data <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">MapDataTableToList<\/span><span class=\"token punctuation\">(<\/span>dt<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>            <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\">PagedResult<span class=\"token punctuation\">&lt;<\/span>T<span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n            <span class=\"token punctuation\">{<\/span><br \/>\n                Data <span class=\"token operator\">&#061;<\/span> data<span class=\"token punctuation\">,<\/span><br \/>\n                TotalCount <span class=\"token operator\">&#061;<\/span> totalCount<span class=\"token punctuation\">,<\/span><br \/>\n                PageIndex <span class=\"token operator\">&#061;<\/span> pageIndex<span class=\"token punctuation\">,<\/span><br \/>\n                PageSize <span class=\"token operator\">&#061;<\/span> pageSize<br \/>\n            <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Exception<\/span> ex<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token function\">LogError<\/span><span class=\"token punctuation\">(<\/span><span class=\"token interpolation-string\"><span class=\"token string\">$&#034;GetPagedWithCondition failed for <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">TableName<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">,<\/span> ex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 10. \u6279\u91cf\u63d2\u5165<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">virtual<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">bool<\/span><\/span> <span class=\"token function\">BulkInsert<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">List<span class=\"token punctuation\">&lt;<\/span>T<span class=\"token punctuation\">&gt;<\/span><\/span> entities<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>entities <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">null<\/span> <span class=\"token operator\">||<\/span> entities<span class=\"token punctuation\">.<\/span>Count <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">try<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u4f7f\u7528KcDb\u7684\u6279\u91cf\u66f4\u65b0\u529f\u80fd<\/span><br \/>\n            <span class=\"token class-name\">DataTable<\/span> dt <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">MapListToDataTable<\/span><span class=\"token punctuation\">(<\/span>entities<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            dt<span class=\"token punctuation\">.<\/span>TableName <span class=\"token operator\">&#061;<\/span> TableName<span class=\"token punctuation\">;<\/span><\/p>\n<p>            <span class=\"token comment\">\/\/ \u4f7f\u7528GetDtSaven\u8fdb\u884c\u6279\u91cf\u63d2\u5165<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> KcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">GetDtSaven<\/span><span class=\"token punctuation\">(<\/span>TableName<span class=\"token punctuation\">,<\/span> dt<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Exception<\/span> ex<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token function\">LogError<\/span><span class=\"token punctuation\">(<\/span><span class=\"token interpolation-string\"><span class=\"token string\">$&#034;BulkInsert failed for <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">TableName<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">, Count: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">entities<span class=\"token punctuation\">.<\/span>Count<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">,<\/span> ex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 11. \u6279\u91cf\u66f4\u65b0<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">virtual<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">bool<\/span><\/span> <span class=\"token function\">BulkUpdate<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">List<span class=\"token punctuation\">&lt;<\/span>T<span class=\"token punctuation\">&gt;<\/span><\/span> entities<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>entities <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">null<\/span> <span class=\"token operator\">||<\/span> entities<span class=\"token punctuation\">.<\/span>Count <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">try<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u4e3a\u6bcf\u4e2a\u5b9e\u4f53\u8bbe\u7f6e\u66f4\u65b0\u65f6\u95f4<\/span><br \/>\n            <span class=\"token keyword\">foreach<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> entity <span class=\"token keyword\">in<\/span> entities<span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">{<\/span><br \/>\n                entity<span class=\"token punctuation\">.<\/span>UpdateTime <span class=\"token operator\">&#061;<\/span> DateTime<span class=\"token punctuation\">.<\/span>Now<span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><\/p>\n<p>            <span class=\"token class-name\">DataTable<\/span> dt <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">MapListToDataTable<\/span><span class=\"token punctuation\">(<\/span>entities<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            dt<span class=\"token punctuation\">.<\/span>TableName <span class=\"token operator\">&#061;<\/span> TableName<span class=\"token punctuation\">;<\/span><\/p>\n<p>            <span class=\"token comment\">\/\/ \u4f7f\u7528GetDtSaven\u8fdb\u884c\u6279\u91cf\u66f4\u65b0<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> KcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">GetDtSaven<\/span><span class=\"token punctuation\">(<\/span>TableName<span class=\"token punctuation\">,<\/span> dt<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Exception<\/span> ex<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token function\">LogError<\/span><span class=\"token punctuation\">(<\/span><span class=\"token interpolation-string\"><span class=\"token string\">$&#034;BulkUpdate failed for <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">TableName<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">, Count: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">entities<span class=\"token punctuation\">.<\/span>Count<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">,<\/span> ex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u8f85\u52a9\u65b9\u6cd5&#xff1a;\u6620\u5c04DataRow\u5230\u5b9e\u4f53<\/span><br \/>\n    <span class=\"token keyword\">protected<\/span> <span class=\"token keyword\">virtual<\/span> <span class=\"token return-type class-name\">T<\/span> <span class=\"token function\">MapDataRowToEntity<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">DataRow<\/span> row<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>row <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">default<\/span><span class=\"token punctuation\">(<\/span><span class=\"token type-expression class-name\">T<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token class-name\">T<\/span> entity <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\">T<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">foreach<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">DataColumn<\/span> column <span class=\"token keyword\">in<\/span> row<span class=\"token punctuation\">.<\/span>Table<span class=\"token punctuation\">.<\/span>Columns<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">try<\/span><br \/>\n            <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> property <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">typeof<\/span><span class=\"token punctuation\">(<\/span><span class=\"token type-expression class-name\">T<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">GetProperty<\/span><span class=\"token punctuation\">(<\/span>column<span class=\"token punctuation\">.<\/span>ColumnName<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>property <span class=\"token operator\">!&#061;<\/span> <span class=\"token keyword\">null<\/span> <span class=\"token operator\">&amp;&amp;<\/span> property<span class=\"token punctuation\">.<\/span>CanWrite <span class=\"token operator\">&amp;&amp;<\/span> row<span class=\"token punctuation\">[<\/span>column<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">!&#061;<\/span> DBNull<span class=\"token punctuation\">.<\/span>Value<span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token punctuation\">{<\/span><br \/>\n                    <span class=\"token comment\">\/\/ \u7c7b\u578b\u8f6c\u6362<\/span><br \/>\n                    <span class=\"token class-name\"><span class=\"token keyword\">object<\/span><\/span> <span class=\"token keyword\">value<\/span> <span class=\"token operator\">&#061;<\/span> Convert<span class=\"token punctuation\">.<\/span><span class=\"token function\">ChangeType<\/span><span class=\"token punctuation\">(<\/span>row<span class=\"token punctuation\">[<\/span>column<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span> property<span class=\"token punctuation\">.<\/span>PropertyType<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    property<span class=\"token punctuation\">.<\/span><span class=\"token function\">SetValue<\/span><span class=\"token punctuation\">(<\/span>entity<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">value<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token keyword\">catch<\/span><br \/>\n            <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token comment\">\/\/ \u5ffd\u7565\u8f6c\u6362\u9519\u8bef<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token keyword\">return<\/span> entity<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u8f85\u52a9\u65b9\u6cd5&#xff1a;\u6620\u5c04DataTable\u5230List<\/span><br \/>\n    <span class=\"token keyword\">protected<\/span> <span class=\"token keyword\">virtual<\/span> <span class=\"token return-type class-name\">List<span class=\"token punctuation\">&lt;<\/span>T<span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">MapDataTableToList<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">DataTable<\/span> dt<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">List<span class=\"token punctuation\">&lt;<\/span>T<span class=\"token punctuation\">&gt;<\/span><\/span> list <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\">List<span class=\"token punctuation\">&lt;<\/span>T<span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>dt <span class=\"token operator\">!&#061;<\/span> <span class=\"token keyword\">null<\/span> <span class=\"token operator\">&amp;&amp;<\/span> dt<span class=\"token punctuation\">.<\/span>Rows<span class=\"token punctuation\">.<\/span>Count <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">foreach<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">DataRow<\/span> row <span class=\"token keyword\">in<\/span> dt<span class=\"token punctuation\">.<\/span>Rows<span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token class-name\">T<\/span> entity <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">MapDataRowToEntity<\/span><span class=\"token punctuation\">(<\/span>row<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>entity <span class=\"token operator\">!&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token punctuation\">{<\/span><br \/>\n                    list<span class=\"token punctuation\">.<\/span><span class=\"token function\">Add<\/span><span class=\"token punctuation\">(<\/span>entity<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token keyword\">return<\/span> list<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u8f85\u52a9\u65b9\u6cd5&#xff1a;\u6620\u5c04List\u5230DataTable<\/span><br \/>\n    <span class=\"token keyword\">protected<\/span> <span class=\"token keyword\">virtual<\/span> <span class=\"token return-type class-name\">DataTable<\/span> <span class=\"token function\">MapListToDataTable<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">List<span class=\"token punctuation\">&lt;<\/span>T<span class=\"token punctuation\">&gt;<\/span><\/span> entities<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">DataTable<\/span> dt <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\">DataTable<\/span><span class=\"token punctuation\">(<\/span>TableName<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>entities <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">null<\/span> <span class=\"token operator\">||<\/span> entities<span class=\"token punctuation\">.<\/span>Count <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> dt<span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u6dfb\u52a0\u5217<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> properties <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">typeof<\/span><span class=\"token punctuation\">(<\/span><span class=\"token type-expression class-name\">T<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">GetProperties<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">foreach<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> prop <span class=\"token keyword\">in<\/span> properties<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            dt<span class=\"token punctuation\">.<\/span>Columns<span class=\"token punctuation\">.<\/span><span class=\"token function\">Add<\/span><span class=\"token punctuation\">(<\/span>prop<span class=\"token punctuation\">.<\/span>Name<span class=\"token punctuation\">,<\/span> Nullable<span class=\"token punctuation\">.<\/span><span class=\"token function\">GetUnderlyingType<\/span><span class=\"token punctuation\">(<\/span>prop<span class=\"token punctuation\">.<\/span>PropertyType<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">??<\/span> prop<span class=\"token punctuation\">.<\/span>PropertyType<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u6dfb\u52a0\u884c<\/span><br \/>\n        <span class=\"token keyword\">foreach<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> entity <span class=\"token keyword\">in<\/span> entities<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\">DataRow<\/span> row <span class=\"token operator\">&#061;<\/span> dt<span class=\"token punctuation\">.<\/span><span class=\"token function\">NewRow<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">foreach<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> prop <span class=\"token keyword\">in<\/span> properties<span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token class-name\"><span class=\"token keyword\">object<\/span><\/span> <span class=\"token keyword\">value<\/span> <span class=\"token operator\">&#061;<\/span> prop<span class=\"token punctuation\">.<\/span><span class=\"token function\">GetValue<\/span><span class=\"token punctuation\">(<\/span>entity<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">??<\/span> DBNull<span class=\"token punctuation\">.<\/span>Value<span class=\"token punctuation\">;<\/span><br \/>\n                row<span class=\"token punctuation\">[<\/span>prop<span class=\"token punctuation\">.<\/span>Name<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">value<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n            dt<span class=\"token punctuation\">.<\/span>Rows<span class=\"token punctuation\">.<\/span><span class=\"token function\">Add<\/span><span class=\"token punctuation\">(<\/span>row<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token keyword\">return<\/span> dt<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u83b7\u53d6\u63d2\u5165\u5c5e\u6027<\/span><br \/>\n    <span class=\"token keyword\">protected<\/span> <span class=\"token keyword\">virtual<\/span> <span class=\"token return-type class-name\">Dictionary<span class=\"token punctuation\">&lt;<\/span><span class=\"token keyword\">string<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">string<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">GetInsertProperties<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">T<\/span> entity<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> dict <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\">Dictionary<span class=\"token punctuation\">&lt;<\/span><span class=\"token keyword\">string<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">string<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> properties <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">typeof<\/span><span class=\"token punctuation\">(<\/span><span class=\"token type-expression class-name\">T<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">GetProperties<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">foreach<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> prop <span class=\"token keyword\">in<\/span> properties<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u8df3\u8fc7\u4e3b\u952e&#xff08;\u5982\u679c\u662f\u81ea\u589e&#xff09;<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>prop<span class=\"token punctuation\">.<\/span>Name <span class=\"token operator\">&#061;&#061;<\/span> PrimaryKey <span class=\"token operator\">&amp;&amp;<\/span> prop<span class=\"token punctuation\">.<\/span>PropertyType <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">typeof<\/span><span class=\"token punctuation\">(<\/span><span class=\"token type-expression class-name\"><span class=\"token keyword\">int<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token keyword\">continue<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>            <span class=\"token class-name\"><span class=\"token keyword\">object<\/span><\/span> <span class=\"token keyword\">value<\/span> <span class=\"token operator\">&#061;<\/span> prop<span class=\"token punctuation\">.<\/span><span class=\"token function\">GetValue<\/span><span class=\"token punctuation\">(<\/span>entity<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            dict<span class=\"token punctuation\">[<\/span>prop<span class=\"token punctuation\">.<\/span>Name<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">EscapeSqlValue<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">value<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token keyword\">return<\/span> dict<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u83b7\u53d6\u66f4\u65b0\u5c5e\u6027<\/span><br \/>\n    <span class=\"token keyword\">protected<\/span> <span class=\"token keyword\">virtual<\/span> <span class=\"token return-type class-name\">Dictionary<span class=\"token punctuation\">&lt;<\/span><span class=\"token keyword\">string<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">string<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">GetUpdateProperties<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">T<\/span> entity<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> dict <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\">Dictionary<span class=\"token punctuation\">&lt;<\/span><span class=\"token keyword\">string<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">string<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> properties <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">typeof<\/span><span class=\"token punctuation\">(<\/span><span class=\"token type-expression class-name\">T<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">GetProperties<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">foreach<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> prop <span class=\"token keyword\">in<\/span> properties<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u8df3\u8fc7\u4e3b\u952e\u548c\u521b\u5efa\u65f6\u95f4\u3001\u521b\u5efa\u7528\u6237<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>prop<span class=\"token punctuation\">.<\/span>Name <span class=\"token operator\">&#061;&#061;<\/span> PrimaryKey <span class=\"token operator\">||<\/span> prop<span class=\"token punctuation\">.<\/span>Name <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token string\">&#034;CreateTime&#034;<\/span> <span class=\"token operator\">||<\/span> prop<span class=\"token punctuation\">.<\/span>Name <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token string\">&#034;CreateUser&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token keyword\">continue<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>            <span class=\"token class-name\"><span class=\"token keyword\">object<\/span><\/span> <span class=\"token keyword\">value<\/span> <span class=\"token operator\">&#061;<\/span> prop<span class=\"token punctuation\">.<\/span><span class=\"token function\">GetValue<\/span><span class=\"token punctuation\">(<\/span>entity<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            dict<span class=\"token punctuation\">[<\/span>prop<span class=\"token punctuation\">.<\/span>Name<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">EscapeSqlValue<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">value<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token keyword\">return<\/span> dict<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ SQL\u503c\u8f6c\u4e49<\/span><br \/>\n    <span class=\"token keyword\">protected<\/span> <span class=\"token keyword\">virtual<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">string<\/span><\/span> <span class=\"token function\">EscapeSqlValue<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">object<\/span><\/span> <span class=\"token keyword\">value<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">value<\/span> <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">null<\/span> <span class=\"token operator\">||<\/span> <span class=\"token keyword\">value<\/span> <span class=\"token operator\">&#061;&#061;<\/span> DBNull<span class=\"token punctuation\">.<\/span>Value<span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token string\">&#034;NULL&#034;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token class-name\">Type<\/span> type <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">value<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">GetType<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>type <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">typeof<\/span><span class=\"token punctuation\">(<\/span><span class=\"token type-expression class-name\"><span class=\"token keyword\">string<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token interpolation-string\"><span class=\"token string\">$&#034;&#039;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\"><span class=\"token keyword\">value<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">ToString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">Replace<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;&#039;&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;&#039;&#039;&#034;<\/span><span class=\"token punctuation\">)<\/span><\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#039;&#034;<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>type <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">typeof<\/span><span class=\"token punctuation\">(<\/span><span class=\"token type-expression class-name\">DateTime<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token interpolation-string\"><span class=\"token string\">$&#034;&#039;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\"><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>DateTime<span class=\"token punctuation\">)<\/span><span class=\"token keyword\">value<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">ToString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;yyyy-MM-dd HH:mm:ss&#034;<\/span><span class=\"token punctuation\">)<\/span><\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#039;&#034;<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>type <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">typeof<\/span><span class=\"token punctuation\">(<\/span><span class=\"token type-expression class-name\"><span class=\"token keyword\">bool<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">bool<\/span><span class=\"token punctuation\">)<\/span><span class=\"token keyword\">value<\/span> <span class=\"token punctuation\">?<\/span> <span class=\"token string\">&#034;true&#034;<\/span> <span class=\"token punctuation\">:<\/span> <span class=\"token string\">&#034;false&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>type <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">typeof<\/span><span class=\"token punctuation\">(<\/span><span class=\"token type-expression class-name\"><span class=\"token keyword\">int<\/span><\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">||<\/span> type <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">typeof<\/span><span class=\"token punctuation\">(<\/span><span class=\"token type-expression class-name\"><span class=\"token keyword\">long<\/span><\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">||<\/span><br \/>\n                 type <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">typeof<\/span><span class=\"token punctuation\">(<\/span><span class=\"token type-expression class-name\"><span class=\"token keyword\">decimal<\/span><\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">||<\/span> type <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">typeof<\/span><span class=\"token punctuation\">(<\/span><span class=\"token type-expression class-name\"><span class=\"token keyword\">double<\/span><\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">||<\/span><br \/>\n                 type <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">typeof<\/span><span class=\"token punctuation\">(<\/span><span class=\"token type-expression class-name\"><span class=\"token keyword\">float<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">value<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">ToString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">else<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token interpolation-string\"><span class=\"token string\">$&#034;&#039;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\"><span class=\"token keyword\">value<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">ToString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">Replace<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;&#039;&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;&#039;&#039;&#034;<\/span><span class=\"token punctuation\">)<\/span><\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#039;&#034;<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u9519\u8bef\u65e5\u5fd7<\/span><br \/>\n    <span class=\"token keyword\">protected<\/span> <span class=\"token keyword\">virtual<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">void<\/span><\/span> <span class=\"token function\">LogError<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> message<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">Exception<\/span> ex<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u53ef\u4ee5\u6269\u5c55\u4e3a\u4f7f\u7528KcDb\u7684\u8bb0\u5f55\u9519\u8bef\u529f\u80fd<\/span><br \/>\n        Console<span class=\"token punctuation\">.<\/span><span class=\"token function\">WriteLine<\/span><span class=\"token punctuation\">(<\/span><span class=\"token interpolation-string\"><span class=\"token string\">$&#034;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">message<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">ex<span class=\"token punctuation\">.<\/span>Message<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>&#xff08;\u4e09&#xff09;\u5177\u4f53\u4e1a\u52a1 DAO \u5b9e\u73b0\u793a\u4f8b<\/h3>\n<h4>3.1 \u7528\u6237\u5b9e\u4f53\u548cDAO<\/h4>\n<p><span class=\"token comment\">\/\/ \u7528\u6237\u5b9e\u4f53<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">User<\/span> <span class=\"token punctuation\">:<\/span> <span class=\"token type-list\"><span class=\"token class-name\">BaseEntity<\/span><\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">string<\/span><\/span> UserCode <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span>        <span class=\"token comment\">\/\/ \u7528\u6237\u7f16\u7801<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">string<\/span><\/span> UserName <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span>        <span class=\"token comment\">\/\/ \u7528\u6237\u59d3\u540d<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">string<\/span><\/span> Password <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span>        <span class=\"token comment\">\/\/ \u5bc6\u7801&#xff08;\u52a0\u5bc6\u540e&#xff09;<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">string<\/span><\/span> Email <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span>           <span class=\"token comment\">\/\/ \u90ae\u7bb1<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">string<\/span><\/span> Phone <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span>           <span class=\"token comment\">\/\/ \u7535\u8bdd<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">int<\/span><\/span> DepartmentId <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span>       <span class=\"token comment\">\/\/ \u90e8\u95e8ID<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">int<\/span><\/span> RoleId <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span>             <span class=\"token comment\">\/\/ \u89d2\u8272ID<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">bool<\/span><\/span> IsActive <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u662f\u5426\u6fc0\u6d3b<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\">DateTime<span class=\"token punctuation\">?<\/span><\/span> LastLoginTime <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token comment\">\/\/ \u6700\u540e\u767b\u5f55\u65f6\u95f4<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">string<\/span><\/span> LastLoginIP <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span>     <span class=\"token comment\">\/\/ \u6700\u540e\u767b\u5f55IP<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u5bfc\u822a\u5c5e\u6027&#xff08;\u865a\u62df\u5c5e\u6027&#xff0c;\u7528\u4e8e\u5173\u8054\u67e5\u8be2&#xff09;<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">virtual<\/span> <span class=\"token return-type class-name\">Department<\/span> Department <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">virtual<\/span> <span class=\"token return-type class-name\">Role<\/span> Role <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u7528\u6237DAO<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">UserDao<\/span> <span class=\"token punctuation\">:<\/span> <span class=\"token type-list\"><span class=\"token class-name\">BaseDao<span class=\"token punctuation\">&lt;<\/span>User<span class=\"token punctuation\">&gt;<\/span><\/span><\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">protected<\/span> <span class=\"token keyword\">override<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">string<\/span><\/span> TableName <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token string\">&#034;sys_users&#034;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u6269\u5c55\u65b9\u6cd5&#xff1a;\u6839\u636e\u7528\u6237\u540d\u83b7\u53d6\u7528\u6237<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\">User<\/span> <span class=\"token function\">GetByUserCode<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> userCode<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> sql <span class=\"token operator\">&#061;<\/span> <span class=\"token interpolation-string\"><span class=\"token string\">$&#034;SELECT * FROM <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">TableName<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> WHERE UserCode &#061; &#039;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\"><span class=\"token function\">EscapeSqlValue<\/span><span class=\"token punctuation\">(<\/span>userCode<span class=\"token punctuation\">)<\/span><\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#039; AND IsDeleted &#061; false&#034;<\/span><\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">try<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\">DataTable<\/span> dt <span class=\"token operator\">&#061;<\/span> KcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">DtRead<\/span><span class=\"token punctuation\">(<\/span>sql<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>dt <span class=\"token operator\">!&#061;<\/span> <span class=\"token keyword\">null<\/span> <span class=\"token operator\">&amp;&amp;<\/span> dt<span class=\"token punctuation\">.<\/span>Rows<span class=\"token punctuation\">.<\/span>Count <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token keyword\">return<\/span> <span class=\"token function\">MapDataRowToEntity<\/span><span class=\"token punctuation\">(<\/span>dt<span class=\"token punctuation\">.<\/span>Rows<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Exception<\/span> ex<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token function\">LogError<\/span><span class=\"token punctuation\">(<\/span><span class=\"token interpolation-string\"><span class=\"token string\">$&#034;GetByUserCode failed for <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">TableName<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">, UserCode: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">userCode<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">,<\/span> ex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u6269\u5c55\u65b9\u6cd5&#xff1a;\u9a8c\u8bc1\u7528\u6237\u767b\u5f55<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\">User<\/span> <span class=\"token function\">ValidateLogin<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> userCode<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> password<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> sql <span class=\"token operator\">&#061;<\/span> <span class=\"token interpolation-string\"><span class=\"token string\">$&#064;&#034;<br \/>\n            SELECT * FROM <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">TableName<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"><br \/>\n            WHERE UserCode &#061; &#039;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\"><span class=\"token function\">EscapeSqlValue<\/span><span class=\"token punctuation\">(<\/span>userCode<span class=\"token punctuation\">)<\/span><\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#039;<br \/>\n            AND Password &#061; &#039;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\"><span class=\"token function\">EscapeSqlValue<\/span><span class=\"token punctuation\">(<\/span>password<span class=\"token punctuation\">)<\/span><\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#039;<br \/>\n            AND IsActive &#061; true<br \/>\n            AND IsDeleted &#061; false&#034;<\/span><\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">try<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\">DataTable<\/span> dt <span class=\"token operator\">&#061;<\/span> KcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">DtRead<\/span><span class=\"token punctuation\">(<\/span>sql<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>dt <span class=\"token operator\">!&#061;<\/span> <span class=\"token keyword\">null<\/span> <span class=\"token operator\">&amp;&amp;<\/span> dt<span class=\"token punctuation\">.<\/span>Rows<span class=\"token punctuation\">.<\/span>Count <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> user <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">MapDataRowToEntity<\/span><span class=\"token punctuation\">(<\/span>dt<span class=\"token punctuation\">.<\/span>Rows<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>                <span class=\"token comment\">\/\/ \u66f4\u65b0\u6700\u540e\u767b\u5f55\u4fe1\u606f<\/span><br \/>\n                <span class=\"token function\">UpdateLastLogin<\/span><span class=\"token punctuation\">(<\/span>user<span class=\"token punctuation\">.<\/span>Id<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>                <span class=\"token keyword\">return<\/span> user<span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Exception<\/span> ex<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token function\">LogError<\/span><span class=\"token punctuation\">(<\/span><span class=\"token interpolation-string\"><span class=\"token string\">$&#034;ValidateLogin failed for <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">TableName<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">, UserCode: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">userCode<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">,<\/span> ex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u66f4\u65b0\u6700\u540e\u767b\u5f55\u4fe1\u606f<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">void<\/span><\/span> <span class=\"token function\">UpdateLastLogin<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> userId<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> sql <span class=\"token operator\">&#061;<\/span> <span class=\"token interpolation-string\"><span class=\"token string\">$&#064;&#034;<br \/>\n            UPDATE <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">TableName<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"><br \/>\n            SET LastLoginTime &#061; NOW(),<br \/>\n                LastLoginIP &#061; &#039;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\"><span class=\"token function\">GetClientIP<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#039;<br \/>\n            WHERE Id &#061; <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">userId<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        KcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">DBexec<\/span><span class=\"token punctuation\">(<\/span>sql<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u83b7\u53d6\u5ba2\u6237\u7aefIP&#xff08;\u793a\u4f8b\u65b9\u6cd5&#xff09;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">string<\/span><\/span> <span class=\"token function\">GetClientIP<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u5b9e\u9645\u9879\u76ee\u4e2d\u4eceHttpContext\u6216\u5176\u4ed6\u65b9\u5f0f\u83b7\u53d6<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token string\">&#034;127.0.0.1&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u91cd\u5199\u63d2\u5165\u65b9\u6cd5&#xff0c;\u6dfb\u52a0\u4e1a\u52a1\u903b\u8f91<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">override<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">int<\/span><\/span> <span class=\"token function\">Insert<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">User<\/span> entity<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u68c0\u67e5\u7528\u6237\u7f16\u7801\u662f\u5426\u5df2\u5b58\u5728<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">UserCodeExists<\/span><span class=\"token punctuation\">(<\/span>entity<span class=\"token punctuation\">.<\/span>UserCode<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\">InvalidOperationException<\/span><span class=\"token punctuation\">(<\/span><span class=\"token interpolation-string\"><span class=\"token string\">$&#034;\u7528\u6237\u7f16\u7801 <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">entity<span class=\"token punctuation\">.<\/span>UserCode<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> \u5df2\u5b58\u5728&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u5bc6\u7801\u52a0\u5bc6&#xff08;\u793a\u4f8b&#xff09;<\/span><br \/>\n        entity<span class=\"token punctuation\">.<\/span>Password <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">EncryptPassword<\/span><span class=\"token punctuation\">(<\/span>entity<span class=\"token punctuation\">.<\/span>Password<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">base<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">Insert<\/span><span class=\"token punctuation\">(<\/span>entity<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u68c0\u67e5\u7528\u6237\u7f16\u7801\u662f\u5426\u5b58\u5728<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">bool<\/span><\/span> <span class=\"token function\">UserCodeExists<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> userCode<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> sql <span class=\"token operator\">&#061;<\/span> <span class=\"token interpolation-string\"><span class=\"token string\">$&#034;SELECT COUNT(*) FROM <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">TableName<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> WHERE UserCode &#061; &#039;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\"><span class=\"token function\">EscapeSqlValue<\/span><span class=\"token punctuation\">(<\/span>userCode<span class=\"token punctuation\">)<\/span><\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#039; AND IsDeleted &#061; false&#034;<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> count <span class=\"token operator\">&#061;<\/span> KcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">DBInteger<\/span><span class=\"token punctuation\">(<\/span>sql<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> count <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u5bc6\u7801\u52a0\u5bc6&#xff08;\u793a\u4f8b&#xff09;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">string<\/span><\/span> <span class=\"token function\">EncryptPassword<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> password<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u5b9e\u9645\u9879\u76ee\u4e2d\u5e94\u8be5\u4f7f\u7528\u5b89\u5168\u7684\u52a0\u5bc6\u65b9\u5f0f<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u8fd9\u91cc\u53ea\u662f\u793a\u4f8b<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> Convert<span class=\"token punctuation\">.<\/span><span class=\"token function\">ToBase64String<\/span><span class=\"token punctuation\">(<\/span>System<span class=\"token punctuation\">.<\/span>Text<span class=\"token punctuation\">.<\/span>Encoding<span class=\"token punctuation\">.<\/span>UTF8<span class=\"token punctuation\">.<\/span><span class=\"token function\">GetBytes<\/span><span class=\"token punctuation\">(<\/span>password<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u83b7\u53d6\u7528\u6237\u5217\u8868&#xff08;\u5e26\u90e8\u95e8\u548c\u89d2\u8272\u4fe1\u606f&#xff09;<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\">DataTable<\/span> <span class=\"token function\">GetUserListWithDetails<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> sql <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#064;&#034;<br \/>\n            SELECT u.*,<br \/>\n                   d.DepartmentName,<br \/>\n                   r.RoleName<br \/>\n            FROM sys_users u<br \/>\n            LEFT JOIN sys_departments d ON u.DepartmentId &#061; d.Id<br \/>\n            LEFT JOIN sys_roles r ON u.RoleId &#061; r.Id<br \/>\n            WHERE u.IsDeleted &#061; false<br \/>\n            ORDER BY u.CreateTime DESC&#034;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">return<\/span> KcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">DtRead<\/span><span class=\"token punctuation\">(<\/span>sql<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>3.2 \u4ea7\u54c1\u5b9e\u4f53\u548cDAO<\/h4>\n<p><span class=\"token comment\">\/\/ \u4ea7\u54c1\u5b9e\u4f53<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Product<\/span> <span class=\"token punctuation\">:<\/span> <span class=\"token type-list\"><span class=\"token class-name\">BaseEntity<\/span><\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">string<\/span><\/span> ProductCode <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span>          <span class=\"token comment\">\/\/ \u4ea7\u54c1\u7f16\u7801<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">string<\/span><\/span> ProductName <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span>          <span class=\"token comment\">\/\/ \u4ea7\u54c1\u540d\u79f0<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">string<\/span><\/span> ProductType <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span>          <span class=\"token comment\">\/\/ \u4ea7\u54c1\u7c7b\u578b<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">string<\/span><\/span> Unit <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span>                 <span class=\"token comment\">\/\/ \u5355\u4f4d<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">decimal<\/span><\/span> Price <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span>               <span class=\"token comment\">\/\/ \u5355\u4ef7<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">decimal<\/span><\/span> Cost <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span>                <span class=\"token comment\">\/\/ \u6210\u672c<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">decimal<\/span><\/span> StockQuantity <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span>       <span class=\"token comment\">\/\/ \u5e93\u5b58\u6570\u91cf<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">decimal<\/span><\/span> MinStock <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span>            <span class=\"token comment\">\/\/ \u6700\u5c0f\u5e93\u5b58<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">decimal<\/span><\/span> MaxStock <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span>            <span class=\"token comment\">\/\/ \u6700\u5927\u5e93\u5b58<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">string<\/span><\/span> Specifications <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span>       <span class=\"token comment\">\/\/ \u89c4\u683c<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">string<\/span><\/span> Manufacturer <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span>         <span class=\"token comment\">\/\/ \u751f\u4ea7\u5382\u5bb6<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">string<\/span><\/span> Supplier <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span>             <span class=\"token comment\">\/\/ \u4f9b\u5e94\u5546<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">bool<\/span><\/span> IsActive <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span>       <span class=\"token comment\">\/\/ \u662f\u5426\u542f\u7528<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">string<\/span><\/span> Remarks <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">get<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">set<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span>              <span class=\"token comment\">\/\/ \u5907\u6ce8<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u4ea7\u54c1DAO<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">ProductDao<\/span> <span class=\"token punctuation\">:<\/span> <span class=\"token type-list\"><span class=\"token class-name\">BaseDao<span class=\"token punctuation\">&lt;<\/span>Product<span class=\"token punctuation\">&gt;<\/span><\/span><\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">protected<\/span> <span class=\"token keyword\">override<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">string<\/span><\/span> TableName <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token string\">&#034;inv_products&#034;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u6269\u5c55\u65b9\u6cd5&#xff1a;\u6839\u636e\u4ea7\u54c1\u7f16\u7801\u83b7\u53d6\u4ea7\u54c1<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\">Product<\/span> <span class=\"token function\">GetByProductCode<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> productCode<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> whereClause <span class=\"token operator\">&#061;<\/span> <span class=\"token interpolation-string\"><span class=\"token string\">$&#034;ProductCode &#061; &#039;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\"><span class=\"token function\">EscapeSqlValue<\/span><span class=\"token punctuation\">(<\/span>productCode<span class=\"token punctuation\">)<\/span><\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#039;&#034;<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> products <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">GetByCondition<\/span><span class=\"token punctuation\">(<\/span>whereClause<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> products<span class=\"token punctuation\">.<\/span><span class=\"token function\">FirstOrDefault<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u6269\u5c55\u65b9\u6cd5&#xff1a;\u66f4\u65b0\u5e93\u5b58<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">bool<\/span><\/span> <span class=\"token function\">UpdateStock<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> productId<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\"><span class=\"token keyword\">decimal<\/span><\/span> quantityChange<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> sql <span class=\"token operator\">&#061;<\/span> <span class=\"token interpolation-string\"><span class=\"token string\">$&#064;&#034;<br \/>\n            UPDATE <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">TableName<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"><br \/>\n            SET StockQuantity &#061; StockQuantity &#043; <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">quantityChange<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">,<br \/>\n                UpdateTime &#061; NOW()<br \/>\n            WHERE Id &#061; <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">productId<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">try<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            KcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">DBexec<\/span><span class=\"token punctuation\">(<\/span>sql<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Exception<\/span> ex<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token function\">LogError<\/span><span class=\"token punctuation\">(<\/span><span class=\"token interpolation-string\"><span class=\"token string\">$&#034;UpdateStock failed for product <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">productId<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">, change: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">quantityChange<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">,<\/span> ex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u6269\u5c55\u65b9\u6cd5&#xff1a;\u6279\u91cf\u66f4\u65b0\u5e93\u5b58<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">bool<\/span><\/span> <span class=\"token function\">BatchUpdateStock<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Dictionary<span class=\"token punctuation\">&lt;<\/span><span class=\"token keyword\">int<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">decimal<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> stockChanges<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>stockChanges <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">null<\/span> <span class=\"token operator\">||<\/span> stockChanges<span class=\"token punctuation\">.<\/span>Count <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">try<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u4f7f\u7528\u4e8b\u52a1\u786e\u4fdd\u4e00\u81f4\u6027<\/span><br \/>\n            <span class=\"token keyword\">using<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> transaction <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\">System<span class=\"token punctuation\">.<\/span>Transactions<span class=\"token punctuation\">.<\/span>TransactionScope<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token keyword\">foreach<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> kvp <span class=\"token keyword\">in<\/span> stockChanges<span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token punctuation\">{<\/span><br \/>\n                    <span class=\"token function\">UpdateStock<\/span><span class=\"token punctuation\">(<\/span>kvp<span class=\"token punctuation\">.<\/span>Key<span class=\"token punctuation\">,<\/span> kvp<span class=\"token punctuation\">.<\/span>Value<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token punctuation\">}<\/span><\/p>\n<p>                transaction<span class=\"token punctuation\">.<\/span><span class=\"token function\">Complete<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Exception<\/span> ex<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token function\">LogError<\/span><span class=\"token punctuation\">(<\/span><span class=\"token interpolation-string\"><span class=\"token string\">$&#034;BatchUpdateStock failed, count: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">stockChanges<span class=\"token punctuation\">.<\/span>Count<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">,<\/span> ex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u6269\u5c55\u65b9\u6cd5&#xff1a;\u83b7\u53d6\u4f4e\u5e93\u5b58\u4ea7\u54c1<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\">List<span class=\"token punctuation\">&lt;<\/span>Product<span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">GetLowStockProducts<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> whereClause <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;StockQuantity &lt;&#061; MinStock AND IsActive &#061; true&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token function\">GetByCondition<\/span><span class=\"token punctuation\">(<\/span>whereClause<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u6269\u5c55\u65b9\u6cd5&#xff1a;\u641c\u7d22\u4ea7\u54c1<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\">List<span class=\"token punctuation\">&lt;<\/span>Product<span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">SearchProducts<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> keyword<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> productType <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">StringBuilder<\/span> <span class=\"token keyword\">where<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\">StringBuilder<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">where<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">Append<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;IsDeleted &#061; false AND IsActive &#061; true&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span><span class=\"token keyword\">string<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">IsNullOrEmpty<\/span><span class=\"token punctuation\">(<\/span>keyword<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">where<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">Append<\/span><span class=\"token punctuation\">(<\/span><span class=\"token interpolation-string\"><span class=\"token string\">$&#034; AND (ProductCode LIKE &#039;%<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\"><span class=\"token function\">EscapeSqlValue<\/span><span class=\"token punctuation\">(<\/span>keyword<span class=\"token punctuation\">)<\/span><\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">%&#039; &#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">where<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">Append<\/span><span class=\"token punctuation\">(<\/span><span class=\"token interpolation-string\"><span class=\"token string\">$&#034;OR ProductName LIKE &#039;%<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\"><span class=\"token function\">EscapeSqlValue<\/span><span class=\"token punctuation\">(<\/span>keyword<span class=\"token punctuation\">)<\/span><\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">%&#039; &#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">where<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">Append<\/span><span class=\"token punctuation\">(<\/span><span class=\"token interpolation-string\"><span class=\"token string\">$&#034;OR Specifications LIKE &#039;%<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\"><span class=\"token function\">EscapeSqlValue<\/span><span class=\"token punctuation\">(<\/span>keyword<span class=\"token punctuation\">)<\/span><\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">%&#039;)&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span><span class=\"token keyword\">string<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">IsNullOrEmpty<\/span><span class=\"token punctuation\">(<\/span>productType<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">where<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">Append<\/span><span class=\"token punctuation\">(<\/span><span class=\"token interpolation-string\"><span class=\"token string\">$&#034; AND ProductType &#061; &#039;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\"><span class=\"token function\">EscapeSqlValue<\/span><span class=\"token punctuation\">(<\/span>productType<span class=\"token punctuation\">)<\/span><\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#039;&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token keyword\">return<\/span> <span class=\"token function\">GetByCondition<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">where<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">ToString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u83b7\u53d6\u4ea7\u54c1\u9500\u552e\u7edf\u8ba1<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\">DataTable<\/span> <span class=\"token function\">GetProductSalesStats<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">DateTime<\/span> startDate<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">DateTime<\/span> endDate<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> sql <span class=\"token operator\">&#061;<\/span> <span class=\"token interpolation-string\"><span class=\"token string\">$&#064;&#034;<br \/>\n            SELECT<br \/>\n                p.Id,<br \/>\n                p.ProductCode,<br \/>\n                p.ProductName,<br \/>\n                p.Unit,<br \/>\n                SUM(od.Quantity) as TotalQuantity,<br \/>\n                SUM(od.Amount) as TotalAmount,<br \/>\n                AVG(od.UnitPrice) as AvgPrice<br \/>\n            FROM inv_products p<br \/>\n            LEFT JOIN sales_order_details od ON p.Id &#061; od.ProductId<br \/>\n            LEFT JOIN sales_orders o ON od.OrderId &#061; o.Id<br \/>\n            WHERE o.OrderDate BETWEEN &#039;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">startDate<\/span><span class=\"token format-string\"><span class=\"token punctuation\">:<\/span>yyyy-MM-dd<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#039; AND &#039;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">endDate<\/span><span class=\"token format-string\"><span class=\"token punctuation\">:<\/span>yyyy-MM-dd<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#039;<br \/>\n                AND o.Status &#061; &#039;\u5df2\u5b8c\u6210&#039;<br \/>\n                AND p.IsDeleted &#061; false<br \/>\n            GROUP BY p.Id, p.ProductCode, p.ProductName, p.Unit<br \/>\n            ORDER BY TotalAmount DESC&#034;<\/span><\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">return<\/span> KcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">DtRead<\/span><span class=\"token punctuation\">(<\/span>sql<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>&#xff08;\u56db&#xff09;DAO\u5de5\u5382\u548c\u670d\u52a1\u5c42<\/h3>\n<h4>4.1 DAO\u5de5\u5382<\/h4>\n<p><span class=\"token comment\">\/\/ DAO\u5de5\u5382&#xff08;\u5355\u4f8b\u6a21\u5f0f&#xff09;<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">DaoFactory<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token class-name\">DaoFactory<\/span> _instance<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">readonly<\/span> <span class=\"token class-name\"><span class=\"token keyword\">object<\/span><\/span> _lock <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\"><span class=\"token keyword\">object<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">Dictionary<span class=\"token punctuation\">&lt;<\/span>Type<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">object<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> _daoCache<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token function\">DaoFactory<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        _daoCache <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\">Dictionary<span class=\"token punctuation\">&lt;<\/span>Type<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">object<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token return-type class-name\">DaoFactory<\/span> Instance<br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">get<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>_instance <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token keyword\">lock<\/span> <span class=\"token punctuation\">(<\/span>_lock<span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token punctuation\">{<\/span><br \/>\n                    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>_instance <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                    <span class=\"token punctuation\">{<\/span><br \/>\n                        _instance <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\">DaoFactory<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token punctuation\">}<\/span><br \/>\n                <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> _instance<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u83b7\u53d6DAO\u5b9e\u4f8b<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\">T<\/span> <span class=\"token generic-method\"><span class=\"token function\">GetDao<\/span><span class=\"token generic class-name\"><span class=\"token punctuation\">&lt;<\/span>T<span class=\"token punctuation\">&gt;<\/span><\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">where<\/span> <span class=\"token class-name\">T<\/span> <span class=\"token punctuation\">:<\/span> <span class=\"token type-list\"><span class=\"token keyword\">class<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">new<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">Type<\/span> daoType <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">typeof<\/span><span class=\"token punctuation\">(<\/span><span class=\"token type-expression class-name\">T<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">lock<\/span> <span class=\"token punctuation\">(<\/span>_daoCache<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span>_daoCache<span class=\"token punctuation\">.<\/span><span class=\"token function\">ContainsKey<\/span><span class=\"token punctuation\">(<\/span>daoType<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">{<\/span><br \/>\n                _daoCache<span class=\"token punctuation\">[<\/span>daoType<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\">T<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> _daoCache<span class=\"token punctuation\">[<\/span>daoType<span class=\"token punctuation\">]<\/span> <span class=\"token keyword\">as<\/span> <span class=\"token class-name\">T<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u6ce8\u518c\u81ea\u5b9a\u4e49DAO<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">void<\/span><\/span> <span class=\"token generic-method\"><span class=\"token function\">RegisterDao<\/span><span class=\"token generic class-name\"><span class=\"token punctuation\">&lt;<\/span>T<span class=\"token punctuation\">&gt;<\/span><\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">T<\/span> daoInstance<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">where<\/span> <span class=\"token class-name\">T<\/span> <span class=\"token punctuation\">:<\/span> <span class=\"token type-list\"><span class=\"token keyword\">class<\/span><\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">Type<\/span> daoType <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">typeof<\/span><span class=\"token punctuation\">(<\/span><span class=\"token type-expression class-name\">T<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">lock<\/span> <span class=\"token punctuation\">(<\/span>_daoCache<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            _daoCache<span class=\"token punctuation\">[<\/span>daoType<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> daoInstance<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>4.2 \u670d\u52a1\u5c42\u793a\u4f8b<\/h4>\n<p><span class=\"token comment\">\/\/ \u7528\u6237\u670d\u52a1<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">UserService<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">readonly<\/span> <span class=\"token class-name\">UserDao<\/span> _userDao<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token function\">UserService<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        _userDao <span class=\"token operator\">&#061;<\/span> DaoFactory<span class=\"token punctuation\">.<\/span>Instance<span class=\"token punctuation\">.<\/span><span class=\"token generic-method\"><span class=\"token function\">GetDao<\/span><span class=\"token generic class-name\"><span class=\"token punctuation\">&lt;<\/span>UserDao<span class=\"token punctuation\">&gt;<\/span><\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u7528\u6237\u767b\u5f55<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\">User<\/span> <span class=\"token function\">Login<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> userCode<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> password<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u53c2\u6570\u9a8c\u8bc1<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">string<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">IsNullOrEmpty<\/span><span class=\"token punctuation\">(<\/span>userCode<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">||<\/span> <span class=\"token keyword\">string<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">IsNullOrEmpty<\/span><span class=\"token punctuation\">(<\/span>password<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\">ArgumentException<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u7528\u6237\u540d\u548c\u5bc6\u7801\u4e0d\u80fd\u4e3a\u7a7a&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u8c03\u7528DAO\u9a8c\u8bc1\u767b\u5f55<\/span><br \/>\n        <span class=\"token class-name\">User<\/span> user <span class=\"token operator\">&#061;<\/span> _userDao<span class=\"token punctuation\">.<\/span><span class=\"token function\">ValidateLogin<\/span><span class=\"token punctuation\">(<\/span>userCode<span class=\"token punctuation\">,<\/span> password<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>user <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\">InvalidOperationException<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u7528\u6237\u540d\u6216\u5bc6\u7801\u9519\u8bef&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u8bb0\u5f55\u767b\u5f55\u65e5\u5fd7<\/span><br \/>\n        <span class=\"token function\">LogLogin<\/span><span class=\"token punctuation\">(<\/span>user<span class=\"token punctuation\">.<\/span>Id<span class=\"token punctuation\">,<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u767b\u5f55\u6210\u529f&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">return<\/span> user<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u521b\u5efa\u7528\u6237<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">int<\/span><\/span> <span class=\"token function\">CreateUser<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">User<\/span> user<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> createdByUserId<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>user <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\">ArgumentNullException<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">nameof<\/span><span class=\"token punctuation\">(<\/span>user<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u4e1a\u52a1\u9a8c\u8bc1<\/span><br \/>\n        <span class=\"token function\">ValidateUser<\/span><span class=\"token punctuation\">(<\/span>user<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u8bbe\u7f6e\u521b\u5efa\u4eba<\/span><br \/>\n        user<span class=\"token punctuation\">.<\/span>CreateUser <span class=\"token operator\">&#061;<\/span> KcDb<span class=\"token punctuation\">.<\/span>JLyh<span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u8c03\u7528DAO\u63d2\u5165<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> userId <span class=\"token operator\">&#061;<\/span> _userDao<span class=\"token punctuation\">.<\/span><span class=\"token function\">Insert<\/span><span class=\"token punctuation\">(<\/span>user<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u8bb0\u5f55\u64cd\u4f5c\u65e5\u5fd7<\/span><br \/>\n        <span class=\"token function\">LogUserOperation<\/span><span class=\"token punctuation\">(<\/span>createdByUserId<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;CREATE&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token interpolation-string\"><span class=\"token string\">$&#034;\u521b\u5efa\u7528\u6237: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">user<span class=\"token punctuation\">.<\/span>UserCode<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">return<\/span> userId<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u66f4\u65b0\u7528\u6237<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">bool<\/span><\/span> <span class=\"token function\">UpdateUser<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">User<\/span> user<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> updatedByUserId<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>user <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">null<\/span> <span class=\"token operator\">||<\/span> user<span class=\"token punctuation\">.<\/span>Id <span class=\"token operator\">&lt;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\">ArgumentException<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u65e0\u6548\u7684\u7528\u6237\u4fe1\u606f&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u4e1a\u52a1\u9a8c\u8bc1<\/span><br \/>\n        <span class=\"token function\">ValidateUser<\/span><span class=\"token punctuation\">(<\/span>user<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u8c03\u7528DAO\u66f4\u65b0<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">bool<\/span><\/span> result <span class=\"token operator\">&#061;<\/span> _userDao<span class=\"token punctuation\">.<\/span><span class=\"token function\">Update<\/span><span class=\"token punctuation\">(<\/span>user<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>result<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u8bb0\u5f55\u64cd\u4f5c\u65e5\u5fd7<\/span><br \/>\n            <span class=\"token function\">LogUserOperation<\/span><span class=\"token punctuation\">(<\/span>updatedByUserId<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;UPDATE&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token interpolation-string\"><span class=\"token string\">$&#034;\u66f4\u65b0\u7528\u6237: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">user<span class=\"token punctuation\">.<\/span>UserCode<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token keyword\">return<\/span> result<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u5220\u9664\u7528\u6237&#xff08;\u8f6f\u5220\u9664&#xff09;<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">bool<\/span><\/span> <span class=\"token function\">DeleteUser<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> userId<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> deletedByUserId<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> reason <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>userId <span class=\"token operator\">&lt;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u83b7\u53d6\u7528\u6237\u4fe1\u606f\u7528\u4e8e\u65e5\u5fd7<\/span><br \/>\n        <span class=\"token class-name\">User<\/span> user <span class=\"token operator\">&#061;<\/span> _userDao<span class=\"token punctuation\">.<\/span><span class=\"token function\">GetById<\/span><span class=\"token punctuation\">(<\/span>userId<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>user <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u4e0d\u80fd\u5220\u9664\u81ea\u5df1<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>userId <span class=\"token operator\">&#061;&#061;<\/span> deletedByUserId<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\">InvalidOperationException<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4e0d\u80fd\u5220\u9664\u5f53\u524d\u767b\u5f55\u7528\u6237&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u8c03\u7528DAO\u5220\u9664<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">bool<\/span><\/span> result <span class=\"token operator\">&#061;<\/span> _userDao<span class=\"token punctuation\">.<\/span><span class=\"token function\">Delete<\/span><span class=\"token punctuation\">(<\/span>userId<span class=\"token punctuation\">,<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>result<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u8bb0\u5f55\u64cd\u4f5c\u65e5\u5fd7<\/span><br \/>\n            <span class=\"token function\">LogUserOperation<\/span><span class=\"token punctuation\">(<\/span>deletedByUserId<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;DELETE&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token interpolation-string\"><span class=\"token string\">$&#034;\u5220\u9664\u7528\u6237: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">user<span class=\"token punctuation\">.<\/span>UserCode<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">, \u539f\u56e0: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">reason<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token keyword\">return<\/span> result<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u83b7\u53d6\u7528\u6237\u5206\u9875\u5217\u8868<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\">PagedResult<span class=\"token punctuation\">&lt;<\/span>User<span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">GetUserPagedList<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> pageIndex<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> pageSize<span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> department <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> role <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> keyword <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">StringBuilder<\/span> whereClause <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\">StringBuilder<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\">List<span class=\"token punctuation\">&lt;<\/span><span class=\"token keyword\">object<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> parameters <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\">List<span class=\"token punctuation\">&lt;<\/span><span class=\"token keyword\">object<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span><span class=\"token keyword\">string<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">IsNullOrEmpty<\/span><span class=\"token punctuation\">(<\/span>department<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            whereClause<span class=\"token punctuation\">.<\/span><span class=\"token function\">Append<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;DepartmentId IN (SELECT Id FROM sys_departments WHERE DepartmentName LIKE {0})&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            parameters<span class=\"token punctuation\">.<\/span><span class=\"token function\">Add<\/span><span class=\"token punctuation\">(<\/span><span class=\"token interpolation-string\"><span class=\"token string\">$&#034;%<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">department<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">%&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span><span class=\"token keyword\">string<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">IsNullOrEmpty<\/span><span class=\"token punctuation\">(<\/span>role<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>whereClause<span class=\"token punctuation\">.<\/span>Length <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> whereClause<span class=\"token punctuation\">.<\/span><span class=\"token function\">Append<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034; AND &#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            whereClause<span class=\"token punctuation\">.<\/span><span class=\"token function\">Append<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;RoleId IN (SELECT Id FROM sys_roles WHERE RoleName LIKE {1})&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            parameters<span class=\"token punctuation\">.<\/span><span class=\"token function\">Add<\/span><span class=\"token punctuation\">(<\/span><span class=\"token interpolation-string\"><span class=\"token string\">$&#034;%<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">role<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">%&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span><span class=\"token keyword\">string<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">IsNullOrEmpty<\/span><span class=\"token punctuation\">(<\/span>keyword<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>whereClause<span class=\"token punctuation\">.<\/span>Length <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> whereClause<span class=\"token punctuation\">.<\/span><span class=\"token function\">Append<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034; AND &#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            whereClause<span class=\"token punctuation\">.<\/span><span class=\"token function\">Append<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;(UserCode LIKE {2} OR UserName LIKE {2} OR Email LIKE {2})&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            parameters<span class=\"token punctuation\">.<\/span><span class=\"token function\">Add<\/span><span class=\"token punctuation\">(<\/span><span class=\"token interpolation-string\"><span class=\"token string\">$&#034;%<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">keyword<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">%&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token keyword\">return<\/span> _userDao<span class=\"token punctuation\">.<\/span><span class=\"token function\">GetPagedWithCondition<\/span><span class=\"token punctuation\">(<\/span>pageIndex<span class=\"token punctuation\">,<\/span> pageSize<span class=\"token punctuation\">,<\/span><br \/>\n            whereClause<span class=\"token punctuation\">.<\/span><span class=\"token function\">ToString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;CreateTime DESC&#034;<\/span><span class=\"token punctuation\">,<\/span> parameters<span class=\"token punctuation\">.<\/span><span class=\"token function\">ToArray<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u7528\u6237\u9a8c\u8bc1\u903b\u8f91<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">void<\/span><\/span> <span class=\"token function\">ValidateUser<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">User<\/span> user<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">string<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">IsNullOrEmpty<\/span><span class=\"token punctuation\">(<\/span>user<span class=\"token punctuation\">.<\/span>UserCode<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\">ArgumentException<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u7528\u6237\u7f16\u7801\u4e0d\u80fd\u4e3a\u7a7a&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">string<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">IsNullOrEmpty<\/span><span class=\"token punctuation\">(<\/span>user<span class=\"token punctuation\">.<\/span>UserName<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\">ArgumentException<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u7528\u6237\u59d3\u540d\u4e0d\u80fd\u4e3a\u7a7a&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">string<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">IsNullOrEmpty<\/span><span class=\"token punctuation\">(<\/span>user<span class=\"token punctuation\">.<\/span>Email<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">||<\/span> <span class=\"token operator\">!<\/span><span class=\"token function\">IsValidEmail<\/span><span class=\"token punctuation\">(<\/span>user<span class=\"token punctuation\">.<\/span>Email<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\">ArgumentException<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u90ae\u7bb1\u683c\u5f0f\u4e0d\u6b63\u786e&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u66f4\u591a\u9a8c\u8bc1\u89c4\u5219&#8230;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u90ae\u7bb1\u9a8c\u8bc1<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">bool<\/span><\/span> <span class=\"token function\">IsValidEmail<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> email<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">try<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> addr <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\">System<span class=\"token punctuation\">.<\/span>Net<span class=\"token punctuation\">.<\/span>Mail<span class=\"token punctuation\">.<\/span>MailAddress<\/span><span class=\"token punctuation\">(<\/span>email<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> addr<span class=\"token punctuation\">.<\/span>Address <span class=\"token operator\">&#061;&#061;<\/span> email<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">catch<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u8bb0\u5f55\u767b\u5f55\u65e5\u5fd7<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">void<\/span><\/span> <span class=\"token function\">LogLogin<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> userId<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\"><span class=\"token keyword\">bool<\/span><\/span> success<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> message<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> sql <span class=\"token operator\">&#061;<\/span> <span class=\"token interpolation-string\"><span class=\"token string\">$&#064;&#034;<br \/>\n            INSERT INTO sys_login_logs (UserId, LoginTime, Success, Message, IPAddress)<br \/>\n            VALUES (<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">userId<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">, NOW(), <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">success<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">, &#039;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">message<span class=\"token punctuation\">.<\/span><span class=\"token function\">Replace<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;&#039;&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;&#039;&#039;&#034;<\/span><span class=\"token punctuation\">)<\/span><\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#039;, &#039;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\"><span class=\"token function\">GetClientIP<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#039;)&#034;<\/span><\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        KcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">DBexec<\/span><span class=\"token punctuation\">(<\/span>sql<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u8bb0\u5f55\u7528\u6237\u64cd\u4f5c\u65e5\u5fd7<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">void<\/span><\/span> <span class=\"token function\">LogUserOperation<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> userId<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> operation<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> description<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> sql <span class=\"token operator\">&#061;<\/span> <span class=\"token interpolation-string\"><span class=\"token string\">$&#064;&#034;<br \/>\n            INSERT INTO sys_operation_logs (UserId, OperationTime, OperationType, Description, IPAddress)<br \/>\n            VALUES (<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">userId<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">, NOW(), &#039;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">operation<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#039;, &#039;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">description<span class=\"token punctuation\">.<\/span><span class=\"token function\">Replace<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;&#039;&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;&#039;&#039;&#034;<\/span><span class=\"token punctuation\">)<\/span><\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#039;, &#039;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\"><span class=\"token function\">GetClientIP<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#039;)&#034;<\/span><\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        KcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">DBexec<\/span><span class=\"token punctuation\">(<\/span>sql<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u83b7\u53d6\u5ba2\u6237\u7aefIP<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">string<\/span><\/span> <span class=\"token function\">GetClientIP<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u5b9e\u9645\u9879\u76ee\u4e2d\u4eceHttpContext\u6216\u5176\u4ed6\u65b9\u5f0f\u83b7\u53d6<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token string\">&#034;127.0.0.1&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>&#xff08;\u4e94&#xff09;\u4f7f\u7528\u793a\u4f8b<\/h3>\n<h4>5.1 \u57fa\u672c\u4f7f\u7528<\/h4>\n<p><span class=\"token comment\">\/\/ \u521d\u59cb\u5316\u6570\u636e\u5e93\u8fde\u63a5<\/span><br \/>\nKcDb<span class=\"token punctuation\">.<\/span>SvNAME <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;localhost&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\nKcDb<span class=\"token punctuation\">.<\/span>DBname <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;erp_db&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\nKcDb<span class=\"token punctuation\">.<\/span>DLmc <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;postgres&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\nKcDb<span class=\"token punctuation\">.<\/span>DLmm <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;password&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\nKcDb<span class=\"token punctuation\">.<\/span><span class=\"token function\">DBLJ<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5efa\u7acb\u8fde\u63a5<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u4f7f\u7528DAO\u5de5\u5382\u83b7\u53d6\u5b9e\u4f8b<\/span><br \/>\n<span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> userDao <span class=\"token operator\">&#061;<\/span> DaoFactory<span class=\"token punctuation\">.<\/span>Instance<span class=\"token punctuation\">.<\/span><span class=\"token generic-method\"><span class=\"token function\">GetDao<\/span><span class=\"token generic class-name\"><span class=\"token punctuation\">&lt;<\/span>UserDao<span class=\"token punctuation\">&gt;<\/span><\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> productDao <span class=\"token operator\">&#061;<\/span> DaoFactory<span class=\"token punctuation\">.<\/span>Instance<span class=\"token punctuation\">.<\/span><span class=\"token generic-method\"><span class=\"token function\">GetDao<\/span><span class=\"token generic class-name\"><span class=\"token punctuation\">&lt;<\/span>ProductDao<span class=\"token punctuation\">&gt;<\/span><\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u6216\u8005\u76f4\u63a5\u5b9e\u4f8b\u5316<\/span><br \/>\n<span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> userDao2 <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\">UserDao<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> productDao2 <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\">ProductDao<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u4f7f\u7528\u670d\u52a1\u5c42<\/span><br \/>\n<span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> userService <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\">UserService<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h4>5.2 CRUD\u64cd\u4f5c\u793a\u4f8b<\/h4>\n<p><span class=\"token comment\">\/\/ 1. \u521b\u5efa\u7528\u6237<\/span><br \/>\n<span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> newUser <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\">User<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    UserCode <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;zhangsan&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    UserName <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;\u5f20\u4e09&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    Password <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;123456&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    Email <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;zhangsan&#064;example.com&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    DepartmentId <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    RoleId <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> userId <span class=\"token operator\">&#061;<\/span> userDao<span class=\"token punctuation\">.<\/span><span class=\"token function\">Insert<\/span><span class=\"token punctuation\">(<\/span>newUser<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nConsole<span class=\"token punctuation\">.<\/span><span class=\"token function\">WriteLine<\/span><span class=\"token punctuation\">(<\/span><span class=\"token interpolation-string\"><span class=\"token string\">$&#034;\u521b\u5efa\u7528\u6237\u6210\u529f&#xff0c;ID: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">userId<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ 2. \u67e5\u8be2\u7528\u6237<\/span><br \/>\n<span class=\"token class-name\">User<\/span> user <span class=\"token operator\">&#061;<\/span> userDao<span class=\"token punctuation\">.<\/span><span class=\"token function\">GetById<\/span><span class=\"token punctuation\">(<\/span>userId<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nConsole<span class=\"token punctuation\">.<\/span><span class=\"token function\">WriteLine<\/span><span class=\"token punctuation\">(<\/span><span class=\"token interpolation-string\"><span class=\"token string\">$&#034;\u67e5\u8be2\u7528\u6237: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">user<span class=\"token punctuation\">.<\/span>UserName<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ 3. \u6761\u4ef6\u67e5\u8be2<\/span><br \/>\n<span class=\"token class-name\">List<span class=\"token punctuation\">&lt;<\/span>User<span class=\"token punctuation\">&gt;<\/span><\/span> activeUsers <span class=\"token operator\">&#061;<\/span> userDao<span class=\"token punctuation\">.<\/span><span class=\"token function\">GetByCondition<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;IsActive &#061; true AND DepartmentId &#061; 1&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ 4. \u5206\u9875\u67e5\u8be2<\/span><br \/>\n<span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> pagedResult <span class=\"token operator\">&#061;<\/span> userDao<span class=\"token punctuation\">.<\/span><span class=\"token function\">GetPaged<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;CreateTime DESC&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nConsole<span class=\"token punctuation\">.<\/span><span class=\"token function\">WriteLine<\/span><span class=\"token punctuation\">(<\/span><span class=\"token interpolation-string\"><span class=\"token string\">$&#034;\u603b\u8bb0\u5f55\u6570: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">pagedResult<span class=\"token punctuation\">.<\/span>TotalCount<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">, \u603b\u9875\u6570: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">pagedResult<span class=\"token punctuation\">.<\/span>TotalPages<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ 5. \u66f4\u65b0\u7528\u6237<\/span><br \/>\nuser<span class=\"token punctuation\">.<\/span>Email <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;newemail&#064;example.com&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\nuserDao<span class=\"token punctuation\">.<\/span><span class=\"token function\">Update<\/span><span class=\"token punctuation\">(<\/span>user<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ 6. \u5220\u9664\u7528\u6237&#xff08;\u8f6f\u5220\u9664&#xff09;<\/span><br \/>\nuserDao<span class=\"token punctuation\">.<\/span><span class=\"token function\">Delete<\/span><span class=\"token punctuation\">(<\/span>userId<span class=\"token punctuation\">,<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h4>5.3 \u4e8b\u52a1\u5904\u7406\u793a\u4f8b<\/h4>\n<p><span class=\"token comment\">\/\/ \u4f7f\u7528\u4e8b\u52a1\u5904\u7406\u590d\u6742\u64cd\u4f5c<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token return-type class-name\"><span class=\"token keyword\">bool<\/span><\/span> <span class=\"token function\">CreateOrderWithTransaction<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Order<\/span> order<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">List<span class=\"token punctuation\">&lt;<\/span>OrderDetail<span class=\"token punctuation\">&gt;<\/span><\/span> details<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">try<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u5f00\u542f\u4e8b\u52a1<\/span><br \/>\n        <span class=\"token comment\">\/\/ 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