{"id":19556,"date":"2025-04-19T01:57:25","date_gmt":"2025-04-18T17:57:25","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/19556.html"},"modified":"2025-04-19T01:57:25","modified_gmt":"2025-04-18T17:57:25","slug":"%e9%9b%86%e7%be%a4%e8%81%8a%e5%a4%a9%e6%9c%8d%e5%8a%a1%e5%99%a8-%e9%80%bb%e8%be%91%e6%a2%b3%e7%90%86","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/19556.html","title":{"rendered":"\u96c6\u7fa4\u804a\u5929\u670d\u52a1\u5668\u2014\u2014\u903b\u8f91\u68b3\u7406"},"content":{"rendered":"<p id=\"ue2ddeca5\">\u7f51\u7edc\u804a\u5929\u670d\u52a1\u5668\u9879\u76ee&#xff0c;\u8be5\u9879\u76ee\u5206\u4e3a4\u4e2a\u6a21\u5757&#xff1a;<\/p>\n<li 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id=\"u196f1d17\">\u7136\u540e\u662f\u6570\u636e\u5b58\u50a8\u6a21\u5757&#xff1a;\u6211\u4f7f\u7528\u4e86MySQL\u6570\u636e\u5e93\u5b58\u50a8\u5173\u952e\u7684\u4fe1\u606f&#xff08;\u7528\u6237\u8d26\u6237\u3001\u79bb\u7ebf\u6d88\u606f\u5217\u8868\u3001\u7fa4\u7ec4\u4fe1\u606f\u3001\u597d\u53cb\u5217\u8868\u7b49&#xff09;\u7531\u5ba2\u6237\u7aef\u7684\u529f\u80fd\u8bf7\u6c42\u8fdb\u884c\u589e\u5220\u6539\u67e5<\/li>\n<p id=\"ue2e05bc7\">\u4ee5\u4e0a\u662f\u5355\u673a\u670d\u52a1\u5668\u7684\u6a21\u5757\u8bbe\u8ba1&#xff0c;\u4f46\u662f\u5355\u673a\u670d\u52a1\u5668\u7684\u5e76\u53d1\u6570\u91cf\u662f\u6709\u9650\u7684&#xff0c;\u6240\u4ee5\u6211\u91c7\u7528\u4e86\u96c6\u7fa4\u670d\u52a1\u5668\u7ecf\u884c\u5e76\u53d1\u80fd\u529b\u6269\u5c55<\/p>\n<p>\u00a0 \u00a0 4.\u6700\u540e\u5728\u591a\u53f0\u670d\u52a1\u5668\u90e8\u7f72&#xff0c;\u57fa\u4e8eTcp \u534f\u8bae\u642d\u5efa\u7684C\/S \u901a\u4fe1&#xff0c;\u6240\u4ee5\u6211\u4f7f\u7528\u4e86Nginx Tcp\u8d1f\u8f7d\u5747\u8861&#xff0c;\u4fdd\u6301\u957f\u8fde\u63a5\u72b6\u6001&#xff0c;\u5e76\u4e14\u5f15\u5165Redis \u7684\u53d1\u5e03\u8ba2\u9605\u529f\u80fd\u5b9e\u73b0\u8de8\u670d\u52a1\u5668\u95f4\u901a\u4fe1<\/p>\n<h2><\/h2>\n<h2 id=\"lFJVc\">1. \u5ba2\u6237\u7aef&#xff1a;<\/h2>\n<h4 id=\"PEx92\">1.1. \u4e24\u4e2a\u6a21\u5757&#xff1a;<\/h4>\n<h5 id=\"VJTjs\">1.1.1. \u8d1f\u8d23\u7528\u6237\u767b\u5f55\u3001\u6ce8\u518c\u3001\u9000\u51fa\u529f\u80fd<\/h5>\n<p id=\"ubdf21b77\">\u4f5c\u4e3a\u5ba2\u6237\u7aef\u8fde\u63a5\u670d\u52a1\u5668\u6210\u529f\u540e\u7684\u9996\u754c\u9762\u5c55\u793a&#xff1a;\u63d0\u4f9b\u4ee5\u4e0a\u4e09\u79cd\u670d\u52a1<\/p>\n<p id=\"uf8da25af\">\u5ba2\u6237\u7aef\u8bbe\u8ba1\u6a21\u5f0f&#xff1a;\u4e3b\u7ebf\u7ebf\u7a0b\u4e13\u6ce8\u4e8e\u4fe1\u606f\u7684\u53d1\u9001\u3001\u5b50\u7ebf\u7a0b\u8d1f\u8d23\u63a5\u53d7\u4fe1\u606f<\/p>\n<p id=\"u6d9cfe54\">\u5c06\u5177\u4f53\u529f\u80fd\u7684\u6240\u9700\u53c2\u6570\u8fdb\u884cjson&#xff08;key-value\u952e\u503c\u5bf9\u5b58\u50a8\u6587\u672c\u5f62\u5f0f&#xff09;\u5e8f\u5217\u5316\u53d1\u9001\u7ed9\u670d\u52a1\u5668<\/p>\n<p id=\"ue0e5812e\">\u4e2a\u522b\u670d\u52a1\u9700\u8981\u670d\u52a1\u5668\u8fd4\u56de\u65b9\u6cd5\u8fd4\u56de\u503c\u72b6\u6001\u4fe1\u606f&#xff0c;&#xff08;\u767b\u5f55\u6210\u529f\u3001\u4fe1\u606f\u6ce8\u518c\u6210\u529f&#xff09;&#xff1f;\u591a\u7ebf\u7a0b\u534f\u8c03\u5b9e\u73b0<\/p>\n<p id=\"ub0d071a5\">\u7531\u4e3b\u7ebf\u7a0b\u53d1\u9001\u540e&#xff0c;\u963b\u585e\u83b7\u53d6\u4fe1\u53f7\u91cf&#xff0c;\u5b50\u7ebf\u7a0b\u6b64\u65f6\u63a5\u53d7\u670d\u52a1\u5668\u8fd4\u56de\u7684json\u5bf9\u8c61&#xff0c;\u7531json\u4e2d\u7684\u670d\u52a1\u65b9\u6cd5\u679a\u4e3eid&#xff0c;\u5206\u7c7b\u7ec6\u5316\u5177\u4f53\u7684\u529f\u80fd\u5b9e\u73b0\u4e1a\u52a1\u903b\u8f91&#xff0c;\u5c06\u670d\u52a1\u65b9\u6cd5\u8c03\u7528\u7684\u72b6\u6001\u5199\u5165\u6700\u540e\u5c06\u4fe1\u53f7\u91cf\u91ca\u653e&#xff0c;\u4e3b\u51fd\u6570\u5219\u53ef\u4ee5\u901a\u8fc7\u5b50\u7ebf\u7a0b\u5199\u5165\u7684\u72b6\u6001\u8fdb\u884c\u4e0b\u4e00\u6b65\u5de5\u4f5c<\/p>\n<\/p>\n<p id=\"u0d44f4a9\">\u767b\u9646\u6210\u529f\u540e\u8fdb\u5165\u529f\u80fd\u83dc\u5355&#xff1a;<\/p>\n<h5 id=\"FAvPw\">1.1.2. \u8d1f\u8d23\u804a\u5929\u670d\u52a1\u5668\u4e1a\u52a1\u529f\u80fd&#xff1a;\u6dfb\u52a0\u597d\u53cb\u4fe1\u606f\u3001\u521b\u5efa\u7fa4\u7ec4\u3001\u52a0\u5165\u7fa4\u7ec4\u3001\u5355\u4eba\u804a\u5929\u3001\u7fa4\u7ec4\u804a\u5929<\/h5>\n<p id=\"ubd38916b\">\u5c06\u529f\u80fd\u51fd\u6570\u5904\u7406\u4e3amap\u8868\u5f62\u5f0f&lt;\u5b58\u50a8\u51fd\u6570\u65b9\u6cd5\u540d\u79f0&#xff0c;\u65b9\u6cd5\u7ed1\u5b9a\u5668&gt;&#xff0c;\u5faa\u73af\u5904\u7406\u5ba2\u6237\u7aef\u7684\u8f93\u5165\u7684\u65b9\u6cd5\u8bf7\u6c42&#xff0c;\u5728\u5faa\u73af\u4e2d\u672a\u4f7f\u7528switch_case\u800c\u662fmap&#043;bind\u56de\u8c03&#xff0c;\u9002\u5e94\u4e8e\u7a0b\u5e8f\u5f00\u53d1\u4e2d\u7684\u5f00\u95ed\u539f\u5219&#xff0c;\u5bf9\u4fee\u6539\u5173\u95ed&#xff0c;\u5bf9\u5f00\u53d1\u6269\u5c55\u5f00\u653e&#xff1b;<\/p>\n<p id=\"u1d46097d\">\u8be5\u90e8\u5206\u51fd\u6570\u4e3b\u8981\u5904\u7406\u7528\u6237\u7684\u529f\u80fd\u4ee5\u53ca\u8f93\u5165\u7684\u53c2\u6570&#xff0c;\u5c01\u88c5\u4e3ajson \u5bf9\u8c61&#xff08;\u670d\u52a1\u5668\u534f\u5546\u7684\u901a\u4fe1\u89c4\u5219&#xff1a;\u65b9\u6cd5\u679a\u4e3eid\u7684\u6807\u8bc6&#xff0c;\u4e0e\u65b9\u6cd5\u8bf7\u6c42\u4e00\u81f4\u7684\u53c2\u6570\u5217\u8868&#xff09;\u53d1\u9001\u7ed9\u670d\u52a1\u5668<\/p>\n<p>auto it &#061; commandHandlerMap.find(command);<br \/>\nif (it &#061;&#061; commandHandlerMap.end())<br \/>\n\/\/error<\/p>\n<p>\/\/ \u8c03\u7528\u76f8\u5e94\u547d\u4ee4\u7684\u4e8b\u4ef6\u5904\u7406\u56de\u8c03&#xff0c;mainMenu\u5bf9\u4fee\u6539\u5c01\u95ed&#xff0c;\u6dfb\u52a0\u65b0\u529f\u80fd\u4e0d\u9700\u8981\u4fee\u6539\u8be5\u51fd\u6570<br \/>\nit-&gt;second(clientfd, commandbuf.substr(idx &#043; 1, commandbuf.size() &#8211; idx));<br \/>\n\/\/ \u8c03\u7528\u547d\u4ee4\u5904\u7406\u65b9\u6cd5 <\/p>\n<p>\u00a0<\/p>\n<p>\u00a0<\/p>\n<h2 id=\"queai\">2. \u670d\u52a1\u5668&#xff1a;<\/h2>\n<h4 id=\"KFSP4\">2.1. \u670d\u52a1\u5668\u9700\u8981\u5904\u7406\u4fe1\u606f\u8f6c\u53d1\u3001\u529f\u80fd\u6027\u6570\u636e\u7684\u5b58\u50a8\u3001\u67e5\u8be2\u3001\u66f4\u65b0\u670d\u52a1<\/h4>\n<p id=\"u5de99eb4\">\u89e3\u51b3\u57fa\u4e8e\u6570\u636e\u5e93\u7684\u529f\u80fd\u670d\u52a1\u95ee\u9898&#xff1a;MySQL<\/p>\n<p id=\"ua5151550\">\u89e3\u51b3\u9ad8\u5e76\u53d1\u573a\u666f\u4e0b\u6570\u636e\u6536\u53d1\u95ee\u9898&#xff1a;muduo \u9759\u6001\u7f51\u7edc\u5e93<\/p>\n<p id=\"ud3553998\">\u89e3\u51b3\u8de8\u670d\u52a1\u5668\u901a\u4fe1\u95ee\u9898 &#xff1a;Redis\u53d1\u5e03\u8ba2\u9605\u95ee\u9898<\/p>\n<p id=\"ue1ffdc29\">\u89e3\u51b3\u8d1f\u8f7d\u5747\u8861\u95ee\u9898&#xff1a;Nginx_\u57fa\u4e8eTcp\u957f\u8fde\u63a5\u7684\u8d1f\u8f7d\u5747\u8861\u95ee\u9898<\/p>\n<h4 id=\"PXqoc\">2.2. \u4e3b\u8981\u57fa\u4e8e\u4ee5\u4e0a\u5185\u5bb9\u5c06\u670d\u52a1\u5668\u5212\u5206\u51fa&#xff1a;<\/h4>\n<p id=\"u6a3c8515\">server\u3001service\u3001db\u3001model\u3001redis\u3001public \u516d\u4e2a\u6a21\u5757<\/p>\n<h5 id=\"k6AO1\">2.2.1. server\u2014\u2014muduo\u7f51\u7edc&#xff1a;<\/h5>\n<p id=\"u028d1dce\">\u57fa\u4e8eepoll&#043;\u591a\u7ebf\u7a0b\u7684\u673a\u5236\u5b9e\u73b0\u9ad8\u5e76\u53d1\u9700\u6c42<\/p>\n<p id=\"u88dc4f33\">\u5728\u8be5\u6a21\u5757\u4e2d\u8bbe\u7f6e\u56db\u4e2a\u5de5\u4f5c\u7ebf\u7a0b&#xff0c;\u5176\u4e2d\u4e00\u4e2a\u5904\u7406\u8fde\u63a5\u56de\u8c03&#xff0c;\u5728\u8fde\u63a5\u5f02\u5e38\u7684\u573a\u666f\u4e0b\u5173\u95ed\u8fde\u63a5&#xff0c;\u4f59\u4e0b\u4e09\u4e2a\u7ebf\u7a0b\u4e3a\u5de5\u4f5c\u7ebf\u7a0b&#xff0c;\u5b8c\u6210\u5c06\u63a5\u6536\u7684\u5b57\u7b26\u57fa\u4e8ejson-parse\u53cd\u5e8f\u5217\u5316\u53d1\u9001\u7ed9service&#xff0c;\u57fa\u4e8e\u670d\u52a1\u65b9\u6cd5id&#xff0c;\u56de\u8c03\u5177\u4f53\u7684\u5904\u7406\u51fd\u6570<\/p>\n<h5 id=\"eJbbj\">2.2.2. db&#xff1a;<\/h5>\n<p id=\"u7e5922c2\">\u6570\u636e\u5e93\u7684\u63a5\u53e3API &#xff0c;\u521b\u5efa\u521d\u59cb\u5316\u3001\u6570\u636e\u5e93\u8fde\u63a5\u3001<\/p>\n<p id=\"u698a05dc\">\u6570\u636e\u66f4\u65b0\u3001\u6570\u636e\u67e5\u8be2query<\/p>\n<p>\/\/ \u521d\u59cb\u5316\u6570\u636e\u5e93\u8fde\u63a5<br \/>\n _conn &#061; mysql_init(nullptr);<\/p>\n<p>\/\/ \u91ca\u653e\u6570\u636e\u5e93\u8fde\u63a5\u8d44\u6e90<br \/>\nif (_conn !&#061; nullptr)<br \/>\n  mysql_close(_conn);<\/p>\n<p>\/\/ \u8fde\u63a5\u6570\u636e\u5e93<br \/>\n MYSQL *p &#061; mysql_real_connect(_conn, server.c_str(), user.c_str(),<br \/>\n            password.c_str(), dbname.c_str(), 3306, nullptr, 0);<\/p>\n<p>\/\/ \u66f4\u65b0\u64cd\u4f5c<br \/>\nmysql_query(_conn, sql.c_str())<\/p>\n<p>\/\/ \u67e5\u8be2\u64cd\u4f5c<br \/>\nmysql_query(_conn, sql.c_str())<br \/>\n    return mysql_use_result(_conn);<\/p>\n<h5 id=\"j3U1s\">2.2.3. model&#xff1a;<\/h5>\n<p id=\"u2eecf383\">\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"336\" id=\"u564b4cd2\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418175724-6802928423a1c.png\" width=\"301\" \/><\/p>\n<p id=\"u8e7e8c51\">\u8be5\u6a21\u5757\u7528\u6765\u5b9e\u73b0\u7528\u6237\u9700\u6c42\u4e0e\u670d\u52a1\u5668\u6570\u636e\u5e93\u4ea4\u4e92\u589e\u3001\u5220\u3001\u6539\u3001\u67e5\u95ee\u9898<\/p>\n<p id=\"u4739dcfa\">\u4ee5\u4e3e\u4f8b&#xff1a;<\/p>\n<p>\/\/ \u6dfb\u52a0\u597d\u53cb\u5173\u7cfb&#xff0c;\u5728\u597d\u53cb\u6570\u636e\u8868\u4e2d\u6dfb\u52a0\u4e00\u6761\u8bb0\u5f55<br \/>\nsprintf(sql, &#034;insert into friend values(%d, %d)&#034;, userid, friendid);<\/p>\n<p>\/\/ \u8fd4\u56de\u7528\u6237\u597d\u53cb\u5217\u8868&#xff0c;\u8054\u5408\u67e5\u8be2\u7528\u6237\u8868\u548c\u597d\u53cb\u8868&#xff0c;\u5c06\u7ed3\u679c\u63d2\u5165vector\u5e76\u7528\u8fd4\u56de<br \/>\nsprintf(sql, &#034;select a.id,a.name,a.state from user a \/<br \/>\ninner join friend b on b.friendid &#061; a.id where b.userid&#061;%d&#034;, userid);<\/p>\n<p>\/\/ 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