{"id":57868,"date":"2025-08-15T22:00:10","date_gmt":"2025-08-15T14:00:10","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/57868.html"},"modified":"2025-08-15T22:00:10","modified_gmt":"2025-08-15T14:00:10","slug":"%e4%bc%81%e4%b8%9a%e7%ba%a7spring%e4%ba%8b%e5%8a%a1%e7%ae%a1%e7%90%86%ef%bc%9a%e4%bb%8e%e5%8d%95%e4%bd%93%e5%ba%94%e7%94%a8%e5%88%b0%e5%be%ae%e6%9c%8d%e5%8a%a1%e5%88%86%e5%b8%83%e5%bc%8f%e4%ba%8b","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/57868.html","title":{"rendered":"\u4f01\u4e1a\u7ea7Spring\u4e8b\u52a1\u7ba1\u7406\uff1a\u4ece\u5355\u4f53\u5e94\u7528\u5230\u5fae\u670d\u52a1\u5206\u5e03\u5f0f\u4e8b\u52a1\u5b8c\u6574\u65b9\u6848"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/08\/20250815140006-689f3d6648a6e.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h2>\u4f01\u4e1a\u7ea7Spring\u4e8b\u52a1\u7ba1\u7406&#xff1a;\u4ece\u5355\u4f53\u5e94\u7528\u5230\u5fae\u670d\u52a1\u5206\u5e03\u5f0f\u4e8b\u52a1\u5b8c\u6574\u65b9\u6848<\/h2>\n<p>&#x1f31f; \u4f60\u597d&#xff0c;\u6211\u662f \u52b1\u5fd7\u6210\u4e3a\u7cd5\u624b &#xff01; &#x1f30c; \u5728\u4ee3\u7801\u7684\u5b87\u5b99\u4e2d&#xff0c;\u6211\u662f\u90a3\u4e2a\u8ffd\u9010\u4f18\u96c5\u4e0e\u6027\u80fd\u7684\u661f\u9645\u65c5\u4eba\u3002 \u2728 \u6bcf\u4e00\u884c\u4ee3\u7801\u90fd\u662f\u6211\u79cd\u4e0b\u7684\u661f\u5149&#xff0c;\u5728\u903b\u8f91\u7684\u571f\u58e4\u91cc\u751f\u957f\u6210\u7480\u74a8\u7684\u94f6\u6cb3&#xff1b; &#x1f6e0;\ufe0f \u6bcf\u4e00\u4e2a\u7b97\u6cd5\u90fd\u662f\u6211\u7ed8\u5236\u7684\u661f\u56fe&#xff0c;\u6307\u5f15\u7740\u6570\u636e\u6d41\u52a8\u7684\u6700\u77ed\u8def\u5f84&#xff1b; &#x1f50d; \u6bcf\u4e00\u6b21\u8c03\u8bd5\u90fd\u662f\u661f\u9645\u5bf9\u8bdd&#xff0c;\u7528\u8010\u5fc3\u548c\u667a\u6167\u89e3\u5f00\u5b87\u5b99\u7684\u8c1c\u9898\u3002 &#x1f680; \u51c6\u5907\u597d\u5f00\u59cb\u6211\u4eec\u7684\u661f\u9645\u7f16\u7801\u4e4b\u65c5\u4e86\u5417&#xff1f;<\/p>\n<\/p>\n<h4>\u76ee\u5f55<\/h4>\n<ul>\n<li>\u4f01\u4e1a\u7ea7Spring\u4e8b\u52a1\u7ba1\u7406&#xff1a;\u4ece\u5355\u4f53\u5e94\u7528\u5230\u5fae\u670d\u52a1\u5206\u5e03\u5f0f\u4e8b\u52a1\u5b8c\u6574\u65b9\u6848<\/li>\n<li>\n<ul>\n<li>\u524d\u8a00<\/li>\n<li>1. Spring\u4e8b\u52a1\u57fa\u7840<\/li>\n<li>\n<ul>\n<li>1.1 \u4ec0\u4e48\u662f\u4e8b\u52a1&#xff1f;<\/li>\n<li>1.2 Spring\u4e8b\u52a1\u7ba1\u7406\u67b6\u6784<\/li>\n<\/ul>\n<\/li>\n<li>2. \u58f0\u660e\u5f0f\u4e8b\u52a1\u4e0e\u7f16\u7a0b\u5f0f\u4e8b\u52a1<\/li>\n<li>\n<ul>\n<li>2.1 \u58f0\u660e\u5f0f\u4e8b\u52a1<\/li>\n<li>2.2 \u7f16\u7a0b\u5f0f\u4e8b\u52a1<\/li>\n<li>2.3 \u4e24\u79cd\u65b9\u5f0f\u7684\u5bf9\u6bd4<\/li>\n<\/ul>\n<\/li>\n<li>3. \u4e8b\u52a1\u4f20\u64ad\u884c\u4e3a<\/li>\n<li>\n<ul>\n<li>3.1 \u5e38\u7528\u4f20\u64ad\u884c\u4e3a\u8be6\u89e3<\/li>\n<li>3.2 \u4f20\u64ad\u884c\u4e3a\u7684\u9009\u62e9\u7b56\u7565<\/li>\n<\/ul>\n<\/li>\n<li>4. \u4e8b\u52a1\u9694\u79bb\u7ea7\u522b<\/li>\n<li>\n<ul>\n<li>4.1 \u5e76\u53d1\u95ee\u9898\u4e0e\u9694\u79bb\u7ea7\u522b<\/li>\n<li>4.2 Spring\u4e2d\u7684\u9694\u79bb\u7ea7\u522b\u914d\u7f6e<\/li>\n<li>4.3 \u9694\u79bb\u7ea7\u522b\u4e0e\u5e76\u53d1\u95ee\u9898\u7684\u5173\u7cfb<\/li>\n<\/ul>\n<\/li>\n<li>5. Spring\u4e8b\u52a1\u7684\u9ad8\u7ea7\u7279\u6027<\/li>\n<li>\n<ul>\n<li>5.1 \u53ea\u8bfb\u4e8b\u52a1<\/li>\n<li>5.2 \u4e8b\u52a1\u8d85\u65f6<\/li>\n<li>5.3 \u4e8b\u52a1\u56de\u6eda\u89c4\u5219<\/li>\n<\/ul>\n<\/li>\n<li>6. \u4e8b\u52a1\u7ba1\u7406\u6700\u4f73\u5b9e\u8df5<\/li>\n<li>\n<ul>\n<li>6.1 \u4e8b\u52a1\u8fb9\u754c\u8bbe\u8ba1<\/li>\n<li>6.2 \u907f\u514d\u4e8b\u52a1\u5d4c\u5957\u5bfc\u81f4\u7684\u95ee\u9898<\/li>\n<li>6.3 \u5904\u7406\u4e8b\u52a1\u4e2d\u7684\u5f02\u5e38<\/li>\n<\/ul>\n<\/li>\n<li>7. \u5e38\u89c1\u95ee\u9898\u4e0e\u89e3\u51b3\u65b9\u6848<\/li>\n<li>\n<ul>\n<li>7.1 \u4e8b\u52a1\u4e0d\u751f\u6548\u7684\u5e38\u89c1\u539f\u56e0<\/li>\n<li>7.2 \u4e8b\u52a1\u56de\u6eda\u95ee\u9898<\/li>\n<li>7.3 \u4e8b\u52a1\u6027\u80fd\u4f18\u5316<\/li>\n<\/ul>\n<\/li>\n<li>8. \u603b\u7ed3\u4e0e\u5c55\u671b<\/li>\n<li>\u53c2\u8003\u94fe\u63a5<\/li>\n<li>\u5173\u952e\u8bcd\u6807\u7b7e<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>\u524d\u8a00<\/h3>\n<p>\u4f5c\u4e3aSpring\u5b66\u4e60\u8005&#xff0c;\u6211\u4e00\u76f4\u8ba4\u4e3a\u4e8b\u52a1\u7ba1\u7406\u662f\u6784\u5efa\u53ef\u9760\u4f01\u4e1a\u5e94\u7528\u7684\u57fa\u77f3\u3002\u5728\u6211\u5b66\u4e60\u751f\u6daf\u4e2d&#xff0c;Spring\u4e8b\u52a1\u7ba1\u7406\u673a\u5236\u7684\u4f18\u96c5\u8bbe\u8ba1\u8ba9\u6211\u6df1\u6df1\u7740\u8ff7\u3002\u8bb0\u5f97\u521a\u770b\u5230\u8fd9\u4e2a\u6982\u5ff5\u65f6&#xff0c;\u6211\u66fe\u56e0\u4e3a\u5bf9\u4e8b\u52a1\u7406\u89e3\u4e0d\u6df1&#xff0c;\u5bfc\u81f4\u4e00\u4e2a\u91d1\u878d\u7cfb\u7edf\u51fa\u73b0\u4e86\u6570\u636e\u4e0d\u4e00\u81f4\u95ee\u9898&#xff0c;\u90a3\u6b21\u7ecf\u5386\u8ba9\u6211\u610f\u8bc6\u5230&#xff1a;\u638c\u63e1\u4e8b\u52a1\u4e0d\u4ec5\u662f\u6280\u672f\u8981\u6c42&#xff0c;\u66f4\u662f\u804c\u4e1a\u8d23\u4efb\u3002<\/p>\n<p>\u901a\u8fc7\u8fd9\u7bc7\u6587\u7ae0&#xff0c;\u6211\u60f3\u4e0e\u5927\u5bb6\u5206\u4eab\u6211\u5bf9Spring\u4e8b\u52a1\u7684\u7406\u89e3\u4e0e\u5b9e\u8df5\u5fc3\u5f97\u3002\u4ece\u57fa\u672c\u6982\u5ff5\u5230\u9ad8\u7ea7\u7279\u6027&#xff0c;\u4ece\u5e38\u89c1\u9677\u9631\u5230\u6027\u80fd\u4f18\u5316&#xff0c;\u6211\u5c06\u7cfb\u7edf\u5730\u68b3\u7406Spring\u4e8b\u52a1\u7684\u65b9\u65b9\u9762\u9762\u3002\u65e0\u8bba\u4f60\u662f\u521a\u63a5\u89e6Spring\u7684\u65b0\u624b&#xff0c;\u8fd8\u662f\u60f3\u6df1\u5165\u4e86\u89e3\u4e8b\u52a1\u673a\u5236\u7684\u8001\u624b&#xff0c;\u6211\u76f8\u4fe1\u8fd9\u7bc7\u6587\u7ae0\u90fd\u80fd\u7ed9\u4f60\u5e26\u6765\u4e00\u4e9b\u542f\u53d1\u3002<\/p>\n<p>\u5728\u63a2\u7d22Spring\u4e8b\u52a1\u7684\u65c5\u7a0b\u4e2d&#xff0c;\u6211\u4eec\u4f1a\u5173\u6ce8\u4e8b\u52a1\u7684ACID\u7279\u6027\u5982\u4f55\u5728Spring\u4e2d\u5f97\u5230\u4fdd\u969c&#xff0c;\u58f0\u660e\u5f0f\u4e0e\u7f16\u7a0b\u5f0f\u4e8b\u52a1\u7684\u9009\u62e9\u7b56\u7565&#xff0c;\u4ee5\u53ca\u4e8b\u52a1\u4f20\u64ad\u884c\u4e3a\u4e0e\u9694\u79bb\u7ea7\u522b\u7684\u6700\u4f73\u5b9e\u8df5\u3002\u540c\u65f6&#xff0c;\u6211\u8fd8\u4f1a\u5206\u4eab\u4e00\u4e9b\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\u9047\u5230\u7684\u68d8\u624b\u95ee\u9898\u53ca\u5176\u89e3\u51b3\u65b9\u6848&#xff0c;\u5e0c\u671b\u80fd\u5e2e\u52a9\u5927\u5bb6\u5728\u5f00\u53d1\u4e2d\u5c11\u8d70\u5f2f\u8def\u3002<\/p>\n<p>\u8ba9\u6211\u4eec\u4e00\u8d77\u63ed\u5f00Spring\u4e8b\u52a1\u7684\u795e\u79d8\u9762\u7eb1&#xff0c;\u63a2\u7d22\u8fd9\u4e2a\u770b\u4f3c\u7b80\u5355\u5374\u8574\u542b\u6df1\u610f\u7684\u6280\u672f\u9886\u57df\u3002\u76f8\u4fe1\u901a\u8fc7\u8fd9\u6b21\u5b66\u4e60&#xff0c;\u4f60\u5c06\u80fd\u591f\u66f4\u52a0\u81ea\u4fe1\u5730\u5728\u9879\u76ee\u4e2d\u5e94\u7528\u4e8b\u52a1\u7ba1\u7406&#xff0c;\u6784\u5efa\u51fa\u66f4\u52a0\u5065\u58ee\u3001\u53ef\u9760\u7684\u4f01\u4e1a\u7ea7\u5e94\u7528\u3002<\/p>\n<h3>1. Spring\u4e8b\u52a1\u57fa\u7840<\/h3>\n<h4>1.1 \u4ec0\u4e48\u662f\u4e8b\u52a1&#xff1f;<\/h4>\n<p>\u4e8b\u52a1\u662f\u6570\u636e\u5e93\u64cd\u4f5c\u7684\u6700\u5c0f\u5de5\u4f5c\u5355\u5143&#xff0c;\u5b83\u5305\u542b\u4e00\u7ec4\u64cd\u4f5c&#xff0c;\u8fd9\u4e9b\u64cd\u4f5c\u8981\u4e48\u5168\u90e8\u6210\u529f&#xff0c;\u8981\u4e48\u5168\u90e8\u5931\u8d25\u56de\u6eda\u3002\u4e00\u4e2a\u5178\u578b\u7684\u4e8b\u52a1\u5e94\u8be5\u6ee1\u8db3ACID\u7279\u6027&#xff1a;<\/p>\n<p>\u201c\u4e8b\u52a1\u5c31\u50cf\u662f\u6570\u636e\u5e93\u4e16\u754c\u7684\u5b88\u62a4\u8005&#xff0c;\u5b83\u786e\u4fdd\u4e86\u5728\u5e76\u53d1\u548c\u6545\u969c\u7684\u6df7\u6c8c\u4e2d&#xff0c;\u6570\u636e\u4f9d\u7136\u80fd\u4fdd\u6301\u4e00\u81f4\u6027\u548c\u53ef\u9760\u6027\u3002\u201d \u2014\u2014 Martin Fowler<\/p>\n<table>\n<tr>\u7279\u6027\u63cf\u8ff0Spring\u5b9e\u73b0\u65b9\u5f0f<\/tr>\n<tbody>\n<tr>\n<td>\u539f\u5b50\u6027(Atomicity)<\/td>\n<td>\u4e8b\u52a1\u4e2d\u7684\u6240\u6709\u64cd\u4f5c\u4f5c\u4e3a\u4e00\u4e2a\u6574\u4f53\u63d0\u4ea4\u6216\u56de\u6eda<\/td>\n<td>\u901a\u8fc7\u4e8b\u52a1\u7ba1\u7406\u5668\u548c\u5e95\u5c42\u6570\u636e\u5e93\u652f\u6301<\/td>\n<\/tr>\n<tr>\n<td>\u4e00\u81f4\u6027(Consistency)<\/td>\n<td>\u4e8b\u52a1\u6267\u884c\u524d\u540e&#xff0c;\u6570\u636e\u5e93\u4ece\u4e00\u4e2a\u4e00\u81f4\u72b6\u6001\u8f6c\u53d8\u4e3a\u53e6\u4e00\u4e2a\u4e00\u81f4\u72b6\u6001<\/td>\n<td>\u4f9d\u8d56\u4e8e\u6b63\u786e\u7684\u4e1a\u52a1\u903b\u8f91\u548c\u6570\u636e\u5e93\u7ea6\u675f<\/td>\n<\/tr>\n<tr>\n<td>\u9694\u79bb\u6027(Isolation)<\/td>\n<td>\u5e76\u53d1\u4e8b\u52a1\u4e4b\u95f4\u76f8\u4e92\u9694\u79bb&#xff0c;\u4e0d\u4e92\u76f8\u5e72\u6270<\/td>\n<td>\u901a\u8fc7\u4e8b\u52a1\u9694\u79bb\u7ea7\u522b\u914d\u7f6e\u5b9e\u73b0<\/td>\n<\/tr>\n<tr>\n<td>\u6301\u4e45\u6027(Durability)<\/td>\n<td>\u4e00\u65e6\u4e8b\u52a1\u63d0\u4ea4&#xff0c;\u5176\u7ed3\u679c\u6c38\u4e45\u4fdd\u5b58<\/td>\n<td>\u4f9d\u8d56\u5e95\u5c42\u6570\u636e\u5e93\u7684\u6301\u4e45\u5316\u673a\u5236<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>1.2 Spring\u4e8b\u52a1\u7ba1\u7406\u67b6\u6784<\/h4>\n<p>Spring\u63d0\u4f9b\u4e86\u4e00\u5957\u4f18\u96c5\u7684\u4e8b\u52a1\u62bd\u8c61\u5c42&#xff0c;\u4f7f\u5f00\u53d1\u8005\u80fd\u591f\u4ee5\u7edf\u4e00\u7684\u65b9\u5f0f\u5904\u7406\u4e0d\u540c\u6570\u636e\u8bbf\u95ee\u6280\u672f\u7684\u4e8b\u52a1\u3002<\/p>\n<p><span class=\"token comment\">\/\/ Spring\u4e8b\u52a1\u7ba1\u7406\u7684\u6838\u5fc3\u63a5\u53e3<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">interface<\/span> <span class=\"token class-name\">PlatformTransactionManager<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u83b7\u53d6\u4e8b\u52a1<\/span><br \/>\n    <span class=\"token class-name\">TransactionStatus<\/span> <span class=\"token function\">getTransaction<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">TransactionDefinition<\/span> definition<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">TransactionException<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u63d0\u4ea4\u4e8b\u52a1<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">commit<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">TransactionStatus<\/span> status<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">TransactionException<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u56de\u6eda\u4e8b\u52a1<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">rollback<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">TransactionStatus<\/span> status<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">TransactionException<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5e38\u89c1\u5b9e\u73b0\u7c7b<\/span><br \/>\n<span class=\"token comment\">\/\/ JDBC\/Mybatis\u4e8b\u52a1\u7ba1\u7406\u5668<\/span><br \/>\n<span class=\"token class-name\"><span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>jdbc<span class=\"token punctuation\">.<\/span>datasource<span class=\"token punctuation\">.<\/span><\/span>DataSourceTransactionManager<\/span><br \/>\n<span class=\"token comment\">\/\/ Hibernate\u4e8b\u52a1\u7ba1\u7406\u5668<\/span><br \/>\n<span class=\"token class-name\"><span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>orm<span class=\"token punctuation\">.<\/span>hibernate5<span class=\"token punctuation\">.<\/span><\/span>HibernateTransactionManager<\/span><br \/>\n<span class=\"token comment\">\/\/ JPA\u4e8b\u52a1\u7ba1\u7406\u5668<\/span><br \/>\n<span class=\"token class-name\"><span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>orm<span class=\"token punctuation\">.<\/span>jpa<span class=\"token punctuation\">.<\/span><\/span>JpaTransactionManager<\/span><\/p>\n<p>Spring\u4e8b\u52a1\u7ba1\u7406\u67b6\u6784\u7684\u6838\u5fc3\u662fPlatformTransactionManager\u63a5\u53e3&#xff0c;\u5b83\u5b9a\u4e49\u4e86\u4e8b\u52a1\u7ba1\u7406\u7684\u57fa\u672c\u64cd\u4f5c\u3002\u6839\u636e\u4e0d\u540c\u7684\u6301\u4e45\u5316\u6280\u672f&#xff0c;Spring\u63d0\u4f9b\u4e86\u591a\u79cd\u5b9e\u73b0\u7c7b&#xff0c;\u5982\u4e0a\u9762\u4ee3\u7801\u4e2d\u5c55\u793a\u7684\u4e09\u79cd\u5e38\u89c1\u5b9e\u73b0\u3002<\/p>\n<p>  #mermaid-svg-hG0bjBtJfJexrOxC 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span{fill:#87CEFA!important;stroke:#4169E1!important;stroke-width:2px!important;}#mermaid-svg-hG0bjBtJfJexrOxC .implementation&gt;*{fill:#98FB98!important;stroke:#228B22!important;stroke-width:2px!important;}#mermaid-svg-hG0bjBtJfJexrOxC .implementation span{fill:#98FB98!important;stroke:#228B22!important;stroke-width:2px!important;}#mermaid-svg-hG0bjBtJfJexrOxC .database&gt;*{fill:#DDA0DD!important;stroke:#9932CC!important;stroke-width:2px!important;}#mermaid-svg-hG0bjBtJfJexrOxC .database span{fill:#DDA0DD!important;stroke:#9932CC!important;stroke-width:2px!important;}<\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span 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&#8211; \u5c55\u793a\u4e86Spring\u4e8b\u52a1\u7ba1\u7406\u7684\u5206\u5c42\u67b6\u6784\u548c\u6570\u636e\u6d41\u5411<\/p>\n<h3>2. \u58f0\u660e\u5f0f\u4e8b\u52a1\u4e0e\u7f16\u7a0b\u5f0f\u4e8b\u52a1<\/h3>\n<p>Spring\u63d0\u4f9b\u4e86\u4e24\u79cd\u4e8b\u52a1\u7ba1\u7406\u65b9\u5f0f&#xff1a;\u58f0\u660e\u5f0f\u4e8b\u52a1\u548c\u7f16\u7a0b\u5f0f\u4e8b\u52a1\u3002<\/p>\n<h4>2.1 \u58f0\u660e\u5f0f\u4e8b\u52a1<\/h4>\n<p>\u58f0\u660e\u5f0f\u4e8b\u52a1\u662fSpring\u6700\u5e38\u7528\u7684\u4e8b\u52a1\u7ba1\u7406\u65b9\u5f0f&#xff0c;\u5b83\u901a\u8fc7AOP\u5b9e\u73b0&#xff0c;\u5c06\u4e8b\u52a1\u7ba1\u7406\u4ee3\u7801\u4e0e\u4e1a\u52a1\u4ee3\u7801\u5206\u79bb\u3002<\/p>\n<p><span class=\"token comment\">\/\/ 1. \u5728\u914d\u7f6e\u7c7b\u4e0a\u542f\u7528\u4e8b\u52a1\u7ba1\u7406<\/span><br \/>\n<span class=\"token annotation punctuation\">&#064;Configuration<\/span><br \/>\n<span class=\"token annotation punctuation\">&#064;EnableTransactionManagement<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TransactionConfig<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Bean<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">DataSource<\/span> <span class=\"token function\">dataSource<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u914d\u7f6e\u6570\u636e\u6e90<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">DruidDataSource<\/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 annotation punctuation\">&#064;Bean<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">PlatformTransactionManager<\/span> <span class=\"token function\">transactionManager<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">DataSource<\/span> dataSource<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">DataSourceTransactionManager<\/span><span class=\"token punctuation\">(<\/span>dataSource<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\">\/\/ 2. \u5728\u670d\u52a1\u65b9\u6cd5\u4e0a\u4f7f\u7528&#064;Transactional\u6ce8\u89e3<\/span><br \/>\n<span class=\"token annotation punctuation\">&#064;Service<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">UserServiceImpl<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">UserService<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Autowired<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">UserMapper<\/span> userMapper<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Transactional<\/span> <span class=\"token comment\">\/\/ \u9ed8\u8ba4\u914d\u7f6e\u7684\u4e8b\u52a1<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">createUser<\/span><span class=\"token punctuation\">(<\/span><span 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punctuation\">(<\/span><span class=\"token class-name\">TransactionDefinition<\/span><span class=\"token punctuation\">.<\/span><span class=\"token constant\">ISOLATION_READ_COMMITTED<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        def<span class=\"token punctuation\">.<\/span><span class=\"token function\">setTimeout<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">30<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u5f00\u59cb\u4e8b\u52a1<\/span><br \/>\n        <span class=\"token class-name\">TransactionStatus<\/span> status <span class=\"token operator\">&#061;<\/span> transactionManager<span class=\"token punctuation\">.<\/span><span class=\"token function\">getTransaction<\/span><span class=\"token punctuation\">(<\/span>def<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u4e1a\u52a1\u903b\u8f91<\/span><br \/>\n            productMapper<span class=\"token punctuation\">.<\/span><span class=\"token function\">updateStock<\/span><span class=\"token punctuation\">(<\/span>productId<span class=\"token punctuation\">,<\/span> quantity<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            orderMapper<span class=\"token punctuation\">.<\/span><span class=\"token function\">createOrder<\/span><span class=\"token punctuation\">(<\/span>productId<span class=\"token punctuation\">,<\/span> quantity<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>            <span class=\"token comment\">\/\/ \u63d0\u4ea4\u4e8b\u52a1<\/span><br \/>\n            transactionManager<span class=\"token punctuation\">.<\/span><span class=\"token function\">commit<\/span><span class=\"token punctuation\">(<\/span>status<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Exception<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u56de\u6eda\u4e8b\u52a1<\/span><br \/>\n            transactionManager<span class=\"token punctuation\">.<\/span><span class=\"token function\">rollback<\/span><span class=\"token punctuation\">(<\/span>status<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span> e<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>\u7f16\u7a0b\u5f0f\u4e8b\u52a1\u7684\u4f18\u70b9\u662f\u53ef\u4ee5\u7cbe\u786e\u63a7\u5236\u4e8b\u52a1\u7684\u8fb9\u754c&#xff0c;\u4f46\u7f3a\u70b9\u662f\u4f7f\u4ee3\u7801\u53d8\u5f97\u66f4\u52a0\u590d\u6742&#xff0c;\u4e14\u4e0e\u4e1a\u52a1\u903b\u8f91\u8026\u5408\u3002<\/p>\n<h4>2.3 \u4e24\u79cd\u65b9\u5f0f\u7684\u5bf9\u6bd4<\/h4>\n<table>\n<tr>\u7279\u6027\u58f0\u660e\u5f0f\u4e8b\u52a1\u7f16\u7a0b\u5f0f\u4e8b\u52a1<\/tr>\n<tbody>\n<tr>\n<td>\u5b9e\u73b0\u65b9\u5f0f<\/td>\n<td>\u57fa\u4e8eAOP&#xff0c;\u4f7f\u7528\u6ce8\u89e3\u6216XML\u914d\u7f6e<\/td>\n<td>\u663e\u5f0f\u7f16\u7801\u7ba1\u7406\u4e8b\u52a1<\/td>\n<\/tr>\n<tr>\n<td>\u4ee3\u7801\u4fb5\u5165\u6027<\/td>\n<td>\u4f4e&#xff0c;\u4e1a\u52a1\u4ee3\u7801\u4e0e\u4e8b\u52a1\u7ba1\u7406\u5206\u79bb<\/td>\n<td>\u9ad8&#xff0c;\u4e8b\u52a1\u4ee3\u7801\u4e0e\u4e1a\u52a1\u4ee3\u7801\u6df7\u5408<\/td>\n<\/tr>\n<tr>\n<td>\u7075\u6d3b\u6027<\/td>\n<td>\u4e2d\u7b49&#xff0c;\u901a\u8fc7\u5c5e\u6027\u914d\u7f6e\u8c03\u6574\u884c\u4e3a<\/td>\n<td>\u9ad8&#xff0c;\u53ef\u4ee5\u7cbe\u786e\u63a7\u5236\u4e8b\u52a1\u8fb9\u754c<\/td>\n<\/tr>\n<tr>\n<td>\u53ef\u8bfb\u6027<\/td>\n<td>\u9ad8&#xff0c;\u6ce8\u89e3\u6e05\u6670\u8868\u660e\u610f\u56fe<\/td>\n<td>\u4e2d\u7b49&#xff0c;\u4e8b\u52a1\u4ee3\u7801\u53ef\u80fd\u63a9\u76d6\u4e1a\u52a1\u903b\u8f91<\/td>\n<\/tr>\n<tr>\n<td>\u7ef4\u62a4\u6027<\/td>\n<td>\u9ad8&#xff0c;\u96c6\u4e2d\u7ba1\u7406\u4e8b\u52a1\u7b56\u7565<\/td>\n<td>\u4e2d\u7b49&#xff0c;\u5206\u6563\u5728\u5404\u5904\u7684\u4e8b\u52a1\u4ee3\u7801<\/td>\n<\/tr>\n<tr>\n<td>\u9002\u7528\u573a\u666f<\/td>\n<td>\u5927\u591a\u6570\u6807\u51c6CRUD\u64cd\u4f5c<\/td>\n<td>\u590d\u6742\u4e1a\u52a1\u903b\u8f91&#xff0c;\u9700\u8981\u7cbe\u7ec6\u63a7\u5236\u4e8b\u52a1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p> 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73.9215686275%);fill:#fff5ad;}#mermaid-svg-ltbArcO88W1Ubq6K .noteText,#mermaid-svg-ltbArcO88W1Ubq6K .noteText&gt;tspan{fill:#333;stroke:none;}#mermaid-svg-ltbArcO88W1Ubq6K .activation0{fill:#0000FF;stroke:hsl(240, 100%, 40%);}#mermaid-svg-ltbArcO88W1Ubq6K .activation1{fill:#0000FF;stroke:hsl(240, 100%, 40%);}#mermaid-svg-ltbArcO88W1Ubq6K .activation2{fill:#0000FF;stroke:hsl(240, 100%, 40%);}#mermaid-svg-ltbArcO88W1Ubq6K .actorPopupMenu{position:absolute;}#mermaid-svg-ltbArcO88W1Ubq6K .actorPopupMenuPanel{position:absolute;fill:#FF0000;box-shadow:0px 8px 16px 0px rgba(0,0,0,0.2);filter:drop-shadow(3px 5px 2px rgb(0 0 0 \/ 0.4));}#mermaid-svg-ltbArcO88W1Ubq6K .actor-man line{stroke:#CC0000;fill:#FF0000;}#mermaid-svg-ltbArcO88W1Ubq6K .actor-man circle,#mermaid-svg-ltbArcO88W1Ubq6K line{stroke:#CC0000;fill:#FF0000;stroke-width:2px;}#mermaid-svg-ltbArcO88W1Ubq6K :root{&#8211;mermaid-font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;}<\/p>\n<p>      \u5ba2\u6237\u7aef<\/p>\n<p>      \u670d\u52a1\u5c42<\/p>\n<p>      Spring AOP<\/p>\n<p>      \u4e8b\u52a1\u7ba1\u7406\u5668<\/p>\n<p>      \u6570\u636e\u5e93<\/p>\n<p>     \u58f0\u660e\u5f0f\u4e8b\u52a1\u6d41\u7a0b<\/p>\n<p>   \u8c03\u7528&#064;Transactional\u65b9\u6cd5<\/p>\n<p>   \u65b9\u6cd5\u6267\u884c<\/p>\n<p>   \u5f00\u59cb\u4e8b\u52a1<\/p>\n<p>   \u83b7\u53d6\u8fde\u63a5\/\u5f00\u542f\u4e8b\u52a1<\/p>\n<p>   \u6267\u884c\u539f\u65b9\u6cd5<\/p>\n<p>   \u6267\u884cSQL<\/p>\n<p>   \u63d0\u4ea4\u4e8b\u52a1<\/p>\n<p>   commit<\/p>\n<p>   \u56de\u6eda\u4e8b\u52a1<\/p>\n<p>   rollback<\/p>\n<p>    alt<\/p>\n<p>     [\u6210\u529f\u6267\u884c]<\/p>\n<p>    [\u5f02\u5e38\u53d1\u751f]<\/p>\n<p>   \u8fd4\u56de\u7ed3\u679c<\/p>\n<p>     \u7f16\u7a0b\u5f0f\u4e8b\u52a1\u6d41\u7a0b<\/p>\n<p>   \u8c03\u7528\u65b9\u6cd5<\/p>\n<p>   \u624b\u52a8\u5f00\u59cb\u4e8b\u52a1<\/p>\n<p>   \u83b7\u53d6\u8fde\u63a5\/\u5f00\u542f\u4e8b\u52a1<\/p>\n<p>   \u6267\u884cSQL<\/p>\n<p>   \u624b\u52a8\u63d0\u4ea4\u4e8b\u52a1<\/p>\n<p>   commit<\/p>\n<p>   \u624b\u52a8\u56de\u6eda\u4e8b\u52a1<\/p>\n<p>   rollback<\/p>\n<p>    alt<\/p>\n<p>     [\u6210\u529f\u6267\u884c]<\/p>\n<p>    [\u5f02\u5e38\u53d1\u751f]<\/p>\n<p>   \u8fd4\u56de\u7ed3\u679c<\/p>\n<p>     \u5ba2\u6237\u7aef<\/p>\n<p>     \u670d\u52a1\u5c42<\/p>\n<p>     Spring AOP<\/p>\n<p>     \u4e8b\u52a1\u7ba1\u7406\u5668<\/p>\n<p>     \u6570\u636e\u5e93<\/p>\n<p>\u56fe2&#xff1a;\u58f0\u660e\u5f0f\u4e8b\u52a1\u4e0e\u7f16\u7a0b\u5f0f\u4e8b\u52a1\u65f6\u5e8f\u56fe &#8211; \u5bf9\u6bd4\u4e24\u79cd\u4e8b\u52a1\u7ba1\u7406\u65b9\u5f0f\u7684\u6267\u884c\u6d41\u7a0b<\/p>\n<h3>3. \u4e8b\u52a1\u4f20\u64ad\u884c\u4e3a<\/h3>\n<p>\u4e8b\u52a1\u4f20\u64ad\u884c\u4e3a\u5b9a\u4e49\u4e86\u5f53\u4e00\u4e2a\u4e8b\u52a1\u65b9\u6cd5\u88ab\u53e6\u4e00\u4e2a\u4e8b\u52a1\u65b9\u6cd5\u8c03\u7528\u65f6&#xff0c;\u5e94\u8be5\u5982\u4f55\u5904\u7406\u4e8b\u52a1\u3002Spring\u5b9a\u4e49\u4e867\u79cd\u4e8b\u52a1\u4f20\u64ad\u884c\u4e3a\u3002<\/p>\n<h4>3.1 \u5e38\u7528\u4f20\u64ad\u884c\u4e3a\u8be6\u89e3<\/h4>\n<p><span class=\"token comment\">\/\/ \u4e8b\u52a1\u4f20\u64ad\u884c\u4e3a\u793a\u4f8b<\/span><br \/>\n<span class=\"token annotation punctuation\">&#064;Service<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">OrderServiceImpl<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">OrderService<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Autowired<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">PaymentService<\/span> paymentService<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Transactional<\/span><span class=\"token punctuation\">(<\/span>propagation <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">Propagation<\/span><span class=\"token punctuation\">.<\/span><span class=\"token constant\">REQUIRED<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">createOrder<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Order<\/span> order<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u4fdd\u5b58\u8ba2\u5355<\/span><br \/>\n        orderMapper<span class=\"token punctuation\">.<\/span><span class=\"token function\">save<\/span><span class=\"token punctuation\">(<\/span>order<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u8c03\u7528\u652f\u4ed8\u670d\u52a1<\/span><br \/>\n        paymentService<span class=\"token punctuation\">.<\/span><span class=\"token function\">processPayment<\/span><span class=\"token punctuation\">(<\/span>order<span class=\"token punctuation\">.<\/span><span class=\"token function\">getId<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> order<span class=\"token punctuation\">.<\/span><span class=\"token function\">getAmount<\/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><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token annotation punctuation\">&#064;Service<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">PaymentServiceImpl<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">PaymentService<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Transactional<\/span><span class=\"token punctuation\">(<\/span>propagation <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">Propagation<\/span><span class=\"token punctuation\">.<\/span><span class=\"token constant\">REQUIRES_NEW<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">processPayment<\/span><span 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keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>amount<span class=\"token punctuation\">.<\/span><span class=\"token function\">compareTo<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">BigDecimal<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;10000&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">0<\/span><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 class-name\">RuntimeException<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Payment amount too large&#034;<\/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><\/p>\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d&#xff0c;createOrder\u65b9\u6cd5\u4f7f\u7528REQUIRED\u4f20\u64ad\u884c\u4e3a&#xff0c;\u800cprocessPayment\u65b9\u6cd5\u4f7f\u7528REQUIRES_NEW\u4f20\u64ad\u884c\u4e3a\u3002\u8fd9\u610f\u5473\u7740\u5373\u4f7f\u652f\u4ed8\u5904\u7406\u5931\u8d25&#xff0c;\u8ba2\u5355\u521b\u5efa\u4e5f\u4f1a\u56de\u6eda&#xff0c;\u56e0\u4e3a\u5b83\u4eec\u5728\u4e0d\u540c\u7684\u4e8b\u52a1\u4e2d\u3002<\/p>\n<p>  #mermaid-svg-XNFuXOAM7Re4agfO {font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:16px;fill:#333;}#mermaid-svg-XNFuXOAM7Re4agfO .error-icon{fill:#552222;}#mermaid-svg-XNFuXOAM7Re4agfO .error-text{fill:#552222;stroke:#552222;}#mermaid-svg-XNFuXOAM7Re4agfO .edge-thickness-normal{stroke-width:2px;}#mermaid-svg-XNFuXOAM7Re4agfO 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ms\\&#8221;,verdana,arial,sans-serif;font-size:12px;background:hsl(80, 100%, 96.2745098039%);border:1px solid #aaaa33;border-radius:2px;pointer-events:none;z-index:100;}#mermaid-svg-XNFuXOAM7Re4agfO :root{&#8211;mermaid-font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;}<\/p>\n<p>         <span id=\"L-L-A-B\" class=\"edgeLabel L-LS-A&#039; L-LE-B\"><\/span><\/p>\n<p>         <span id=\"L-L-A-C\" class=\"edgeLabel L-LS-A&#039; L-LE-C\"><\/span><\/p>\n<p>         <span id=\"L-L-B-D\" class=\"edgeLabel L-LS-B&#039; L-LE-D\"><\/span><\/p>\n<p>         <span id=\"L-L-B-E\" class=\"edgeLabel L-LS-B&#039; L-LE-E\"><\/span><\/p>\n<p>         <span id=\"L-L-B-F\" class=\"edgeLabel L-LS-B&#039; L-LE-F\"><\/span><\/p>\n<p>         <span id=\"L-L-B-G\" class=\"edgeLabel L-LS-B&#039; L-LE-G\"><\/span><\/p>\n<p>         <span id=\"L-L-B-H\" class=\"edgeLabel L-LS-B&#039; L-LE-H\"><\/span><\/p>\n<p>         <span id=\"L-L-B-I\" class=\"edgeLabel L-LS-B&#039; L-LE-I\"><\/span><\/p>\n<p>         <span id=\"L-L-B-J\" class=\"edgeLabel L-LS-B&#039; L-LE-J\"><\/span><\/p>\n<p>         <span id=\"L-L-C-K\" class=\"edgeLabel L-LS-C&#039; L-LE-K\"><\/span><\/p>\n<p>         <span id=\"L-L-C-L\" class=\"edgeLabel L-LS-C&#039; L-LE-L\"><\/span><\/p>\n<p>         <span id=\"L-L-C-M\" class=\"edgeLabel L-LS-C&#039; L-LE-M\"><\/span><\/p>\n<p>         <span id=\"L-L-C-N\" class=\"edgeLabel L-LS-C&#039; L-LE-N\"><\/span><\/p>\n<p>         <span id=\"L-L-C-O\" class=\"edgeLabel L-LS-C&#039; L-LE-O\"><\/span><\/p>\n<p>         <span id=\"L-L-C-P\" class=\"edgeLabel L-LS-C&#039; L-LE-P\"><\/span><\/p>\n<p>         <span id=\"L-L-C-Q\" class=\"edgeLabel L-LS-C&#039; L-LE-Q\"><\/span><\/p>\n<p>          \u4e8b\u52a1\u4f20\u64ad\u884c\u4e3a<\/p>\n<p>          \u5f53\u524d\u6709\u4e8b\u52a1<\/p>\n<p>          \u5f53\u524d\u65e0\u4e8b\u52a1<\/p>\n<p>          REQUIRED<br \/>\n          \u52a0\u5165\u73b0\u6709\u4e8b\u52a1<\/p>\n<p>          REQUIRES_NEW<br \/>\n          \u6302\u8d77\u73b0\u6709\u4e8b\u52a1<br \/>\n          \u521b\u5efa\u65b0\u4e8b\u52a1<\/p>\n<p>          SUPPORTS<br \/>\n          \u52a0\u5165\u73b0\u6709\u4e8b\u52a1<\/p>\n<p>          MANDATORY<br \/>\n          \u52a0\u5165\u73b0\u6709\u4e8b\u52a1<\/p>\n<p>          NOT_SUPPORTED<br \/>\n          \u6302\u8d77\u73b0\u6709\u4e8b\u52a1<br \/>\n          \u975e\u4e8b\u52a1\u6267\u884c<\/p>\n<p>          NEVER<br \/>\n          \u629b\u51fa\u5f02\u5e38<\/p>\n<p>          NESTED<br \/>\n          \u521b\u5efa\u5d4c\u5957\u4e8b\u52a1<br \/>\n          \u4fdd\u5b58\u70b9<\/p>\n<p>          REQUIRED<br \/>\n          \u521b\u5efa\u65b0\u4e8b\u52a1<\/p>\n<p>          REQUIRES_NEW<br \/>\n          \u521b\u5efa\u65b0\u4e8b\u52a1<\/p>\n<p>          SUPPORTS<br \/>\n          \u975e\u4e8b\u52a1\u6267\u884c<\/p>\n<p>          MANDATORY<br \/>\n          \u629b\u51fa\u5f02\u5e38<\/p>\n<p>          NOT_SUPPORTED<br \/>\n          \u975e\u4e8b\u52a1\u6267\u884c<\/p>\n<p>          NEVER<br \/>\n          \u975e\u4e8b\u52a1\u6267\u884c<\/p>\n<p>          NESTED<br \/>\n          \u521b\u5efa\u65b0\u4e8b\u52a1<\/p>\n<p>          D,E,F,G,H,I,J,K,L,M,N,O,P,Q<\/p>\n<p>\u56fe3&#xff1a;\u4e8b\u52a1\u4f20\u64ad\u884c\u4e3a\u6d41\u7a0b\u56fe &#8211; \u5c55\u793a\u4e86\u4e0d\u540c\u4f20\u64ad\u884c\u4e3a\u7684\u51b3\u7b56\u6d41\u7a0b<\/p>\n<h4>3.2 \u4f20\u64ad\u884c\u4e3a\u7684\u9009\u62e9\u7b56\u7565<\/h4>\n<table>\n<tr>\u4f20\u64ad\u884c\u4e3a\u63cf\u8ff0\u9002\u7528\u573a\u666f<\/tr>\n<tbody>\n<tr>\n<td>REQUIRED<\/td>\n<td>\u5982\u679c\u5f53\u524d\u5b58\u5728\u4e8b\u52a1&#xff0c;\u5219\u52a0\u5165\u8be5\u4e8b\u52a1&#xff1b;\u5982\u679c\u5f53\u524d\u6ca1\u6709\u4e8b\u52a1&#xff0c;\u5219\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u4e8b\u52a1<\/td>\n<td>\u5927\u591a\u6570\u4e8b\u52a1\u65b9\u6cd5\u7684\u9ed8\u8ba4\u9009\u62e9<\/td>\n<\/tr>\n<tr>\n<td>REQUIRES_NEW<\/td>\n<td>\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u4e8b\u52a1&#xff0c;\u5982\u679c\u5f53\u524d\u5b58\u5728\u4e8b\u52a1&#xff0c;\u5219\u628a\u5f53\u524d\u4e8b\u52a1\u6302\u8d77<\/td>\n<td>\u72ec\u7acb\u4e8e\u5916\u90e8\u4e8b\u52a1\u7684\u64cd\u4f5c&#xff0c;\u5982\u65e5\u5fd7\u8bb0\u5f55<\/td>\n<\/tr>\n<tr>\n<td>SUPPORTS<\/td>\n<td>\u5982\u679c\u5f53\u524d\u5b58\u5728\u4e8b\u52a1&#xff0c;\u5219\u52a0\u5165\u8be5\u4e8b\u52a1&#xff1b;\u5982\u679c\u5f53\u524d\u6ca1\u6709\u4e8b\u52a1&#xff0c;\u5219\u4ee5\u975e\u4e8b\u52a1\u65b9\u5f0f\u6267\u884c<\/td>\n<td>\u67e5\u8be2\u65b9\u6cd5&#xff0c;\u4e0d\u9700\u8981\u5f3a\u5236\u4e8b\u52a1<\/td>\n<\/tr>\n<tr>\n<td>MANDATORY<\/td>\n<td>\u5982\u679c\u5f53\u524d\u5b58\u5728\u4e8b\u52a1&#xff0c;\u5219\u52a0\u5165\u8be5\u4e8b\u52a1&#xff1b;\u5982\u679c\u5f53\u524d\u6ca1\u6709\u4e8b\u52a1&#xff0c;\u5219\u629b\u51fa\u5f02\u5e38<\/td>\n<td>\u5fc5\u987b\u5728\u4e8b\u52a1\u4e2d\u6267\u884c\u7684\u4e1a\u52a1\u65b9\u6cd5<\/td>\n<\/tr>\n<tr>\n<td>NOT_SUPPORTED<\/td>\n<td>\u4ee5\u975e\u4e8b\u52a1\u65b9\u5f0f\u6267\u884c&#xff0c;\u5982\u679c\u5f53\u524d\u5b58\u5728\u4e8b\u52a1&#xff0c;\u5219\u628a\u5f53\u524d\u4e8b\u52a1\u6302\u8d77<\/td>\n<td>\u4e0d\u5e94\u8be5\u5728\u4e8b\u52a1\u4e2d\u6267\u884c\u7684\u64cd\u4f5c<\/td>\n<\/tr>\n<tr>\n<td>NEVER<\/td>\n<td>\u4ee5\u975e\u4e8b\u52a1\u65b9\u5f0f\u6267\u884c&#xff0c;\u5982\u679c\u5f53\u524d\u5b58\u5728\u4e8b\u52a1&#xff0c;\u5219\u629b\u51fa\u5f02\u5e38<\/td>\n<td>\u786e\u4fdd\u4e0d\u5728\u4e8b\u52a1\u4e2d\u6267\u884c\u7684\u64cd\u4f5c<\/td>\n<\/tr>\n<tr>\n<td>NESTED<\/td>\n<td>\u5982\u679c\u5f53\u524d\u5b58\u5728\u4e8b\u52a1&#xff0c;\u5219\u521b\u5efa\u4e00\u4e2a\u4e8b\u52a1\u4f5c\u4e3a\u5f53\u524d\u4e8b\u52a1\u7684\u5d4c\u5957\u4e8b\u52a1\u6765\u6267\u884c&#xff1b;\u5982\u679c\u5f53\u524d\u6ca1\u6709\u4e8b\u52a1&#xff0c;\u5219\u7b49\u4ef7\u4e8eREQUIRED<\/td>\n<td>\u53ef\u4ee5\u72ec\u7acb\u56de\u6eda\u7684\u5b50\u64cd\u4f5c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>4. \u4e8b\u52a1\u9694\u79bb\u7ea7\u522b<\/h3>\n<p>\u4e8b\u52a1\u9694\u79bb\u7ea7\u522b\u5b9a\u4e49\u4e86\u4e00\u4e2a\u4e8b\u52a1\u53ef\u80fd\u53d7\u5176\u4ed6\u5e76\u53d1\u4e8b\u52a1\u5f71\u54cd\u7684\u7a0b\u5ea6\u3002<\/p>\n<h4>4.1 \u5e76\u53d1\u95ee\u9898\u4e0e\u9694\u79bb\u7ea7\u522b<\/h4>\n<p>  #mermaid-svg-QiDzSbYgRTygBMAi {font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:16px;fill:#333;}#mermaid-svg-QiDzSbYgRTygBMAi .error-icon{fill:#552222;}#mermaid-svg-QiDzSbYgRTygBMAi .error-text{fill:#552222;stroke:#552222;}#mermaid-svg-QiDzSbYgRTygBMAi .edge-thickness-normal{stroke-width:2px;}#mermaid-svg-QiDzSbYgRTygBMAi .edge-thickness-thick{stroke-width:3.5px;}#mermaid-svg-QiDzSbYgRTygBMAi .edge-pattern-solid{stroke-dasharray:0;}#mermaid-svg-QiDzSbYgRTygBMAi .edge-pattern-dashed{stroke-dasharray:3;}#mermaid-svg-QiDzSbYgRTygBMAi .edge-pattern-dotted{stroke-dasharray:2;}#mermaid-svg-QiDzSbYgRTygBMAi .marker{fill:#333333;stroke:#333333;}#mermaid-svg-QiDzSbYgRTygBMAi .marker.cross{stroke:#333333;}#mermaid-svg-QiDzSbYgRTygBMAi svg{font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:16px;}#mermaid-svg-QiDzSbYgRTygBMAi .label{font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;color:#333;}#mermaid-svg-QiDzSbYgRTygBMAi .cluster-label text{fill:#333;}#mermaid-svg-QiDzSbYgRTygBMAi .cluster-label span{color:#333;}#mermaid-svg-QiDzSbYgRTygBMAi .label text,#mermaid-svg-QiDzSbYgRTygBMAi span{fill:#333;color:#333;}#mermaid-svg-QiDzSbYgRTygBMAi .node rect,#mermaid-svg-QiDzSbYgRTygBMAi .node circle,#mermaid-svg-QiDzSbYgRTygBMAi .node ellipse,#mermaid-svg-QiDzSbYgRTygBMAi .node polygon,#mermaid-svg-QiDzSbYgRTygBMAi .node path{fill:#ECECFF;stroke:#9370DB;stroke-width:1px;}#mermaid-svg-QiDzSbYgRTygBMAi .node .label{text-align:center;}#mermaid-svg-QiDzSbYgRTygBMAi .node.clickable{cursor:pointer;}#mermaid-svg-QiDzSbYgRTygBMAi .arrowheadPath{fill:#333333;}#mermaid-svg-QiDzSbYgRTygBMAi .edgePath .path{stroke:#333333;stroke-width:2.0px;}#mermaid-svg-QiDzSbYgRTygBMAi .flowchart-link{stroke:#333333;fill:none;}#mermaid-svg-QiDzSbYgRTygBMAi .edgeLabel{background-color:#e8e8e8;text-align:center;}#mermaid-svg-QiDzSbYgRTygBMAi .edgeLabel rect{opacity:0.5;background-color:#e8e8e8;fill:#e8e8e8;}#mermaid-svg-QiDzSbYgRTygBMAi .cluster rect{fill:#ffffde;stroke:#aaaa33;stroke-width:1px;}#mermaid-svg-QiDzSbYgRTygBMAi .cluster text{fill:#333;}#mermaid-svg-QiDzSbYgRTygBMAi .cluster span{color:#333;}#mermaid-svg-QiDzSbYgRTygBMAi div.mermaidTooltip{position:absolute;text-align:center;max-width:200px;padding:2px;font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:12px;background:hsl(80, 100%, 96.2745098039%);border:1px solid #aaaa33;border-radius:2px;pointer-events:none;z-index:100;}#mermaid-svg-QiDzSbYgRTygBMAi :root{&#8211;mermaid-font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;}<\/p>\n<p>         <span id=\"L-L-A-B\" class=\"edgeLabel L-LS-A&#039; L-LE-B\"><\/span><\/p>\n<p>         <span id=\"L-L-A-C\" class=\"edgeLabel L-LS-A&#039; L-LE-C\"><\/span><\/p>\n<p>         <span id=\"L-L-A-D\" class=\"edgeLabel L-LS-A&#039; L-LE-D\"><\/span><\/p>\n<p>         <span id=\"L-L-A-E\" class=\"edgeLabel L-LS-A&#039; L-LE-E\"><\/span><\/p>\n<p>         <span id=\"L-L-B-F\" class=\"edgeLabel L-LS-B&#039; L-LE-F\"><\/span><\/p>\n<p>         <span id=\"L-L-C-G\" class=\"edgeLabel L-LS-C&#039; L-LE-G\"><\/span><\/p>\n<p>         <span id=\"L-L-D-H\" class=\"edgeLabel L-LS-D&#039; L-LE-H\"><\/span><\/p>\n<p>         <span id=\"L-L-E-I\" class=\"edgeLabel L-LS-E&#039; L-LE-I\"><\/span><\/p>\n<p>         <span id=\"L-L-B-J\" class=\"edgeLabel L-LS-B&#039; L-LE-J\"><\/span><\/p>\n<p>         <span id=\"L-L-C-K\" class=\"edgeLabel L-LS-C&#039; L-LE-K\"><\/span><\/p>\n<p>         <span id=\"L-L-D-L\" class=\"edgeLabel L-LS-D&#039; L-LE-L\"><\/span><\/p>\n<p>         <span id=\"L-L-E-M\" class=\"edgeLabel L-LS-E&#039; L-LE-M\"><\/span><\/p>\n<p>          \u4e8b\u52a1\u9694\u79bb\u7ea7\u522b<\/p>\n<p>          READ_UNCOMMITTED<\/p>\n<p>          READ_COMMITTED<\/p>\n<p>          REPEATABLE_READ<\/p>\n<p>          SERIALIZABLE<\/p>\n<p>          \u810f\u8bfb: \u2713<br \/>\n          \u4e0d\u53ef\u91cd\u590d\u8bfb: \u2713<br \/>\n          \u5e7b\u8bfb: \u2713<\/p>\n<p>          \u810f\u8bfb: \u2717<br \/>\n          \u4e0d\u53ef\u91cd\u590d\u8bfb: \u2713<br \/>\n          \u5e7b\u8bfb: \u2713<\/p>\n<p>          \u810f\u8bfb: \u2717<br \/>\n          \u4e0d\u53ef\u91cd\u590d\u8bfb: \u2717<br \/>\n          \u5e7b\u8bfb: \u2713<\/p>\n<p>          \u810f\u8bfb: \u2717<br \/>\n          \u4e0d\u53ef\u91cd\u590d\u8bfb: \u2717<br \/>\n          \u5e7b\u8bfb: \u2717<\/p>\n<p>          \u5e76\u53d1\u6027\u80fd: \u6700\u9ad8<br \/>\n          \u9694\u79bb\u7a0b\u5ea6: \u6700\u4f4e<\/p>\n<p>          \u5e76\u53d1\u6027\u80fd: \u9ad8<br \/>\n          \u9694\u79bb\u7a0b\u5ea6: \u4f4e<\/p>\n<p>          \u5e76\u53d1\u6027\u80fd: \u4e2d<br \/>\n          \u9694\u79bb\u7a0b\u5ea6: \u9ad8<\/p>\n<p>          \u5e76\u53d1\u6027\u80fd: \u6700\u4f4e<br \/>\n          \u9694\u79bb\u7a0b\u5ea6: \u6700\u9ad8<\/p>\n<p>          B,C,D,E<\/p>\n<p>          F,G,H,I<\/p>\n<p>          J,K,L,M<\/p>\n<p>\u56fe4&#xff1a;\u4e8b\u52a1\u9694\u79bb\u7ea7\u522b\u8c61\u9650\u56fe &#8211; \u5c55\u793a\u4e86\u4e0d\u540c\u9694\u79bb\u7ea7\u522b\u5728\u9694\u79bb\u6027\u4e0e\u5e76\u53d1\u6027\u4e4b\u95f4\u7684\u6743\u8861<\/p>\n<h4>4.2 Spring\u4e2d\u7684\u9694\u79bb\u7ea7\u522b\u914d\u7f6e<\/h4>\n<p><span class=\"token annotation punctuation\">&#064;Service<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">AccountServiceImpl<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">AccountService<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Autowired<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">AccountMapper<\/span> accountMapper<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u4f7f\u7528READ_COMMITTED\u9694\u79bb\u7ea7\u522b&#xff0c;\u907f\u514d\u810f\u8bfb<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Transactional<\/span><span class=\"token punctuation\">(<\/span>isolation <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">Isolation<\/span><span class=\"token punctuation\">.<\/span><span class=\"token constant\">READ_COMMITTED<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">transfer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Long<\/span> fromId<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">Long<\/span> toId<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">BigDecimal<\/span> amount<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">Account<\/span> fromAccount <span class=\"token operator\">&#061;<\/span> accountMapper<span class=\"token punctuation\">.<\/span><span class=\"token function\">findById<\/span><span class=\"token punctuation\">(<\/span>fromId<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\">Account<\/span> toAccount <span class=\"token operator\">&#061;<\/span> accountMapper<span class=\"token punctuation\">.<\/span><span class=\"token function\">findById<\/span><span class=\"token punctuation\">(<\/span>toId<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>fromAccount<span class=\"token punctuation\">.<\/span><span class=\"token function\">getBalance<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">compareTo<\/span><span class=\"token punctuation\">(<\/span>amount<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">0<\/span><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 class-name\">InsufficientBalanceException<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4f59\u989d\u4e0d\u8db3&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        fromAccount<span class=\"token punctuation\">.<\/span><span class=\"token function\">setBalance<\/span><span class=\"token punctuation\">(<\/span>fromAccount<span class=\"token punctuation\">.<\/span><span class=\"token function\">getBalance<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">subtract<\/span><span class=\"token punctuation\">(<\/span>amount<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        toAccount<span class=\"token punctuation\">.<\/span><span class=\"token function\">setBalance<\/span><span class=\"token punctuation\">(<\/span>toAccount<span class=\"token punctuation\">.<\/span><span class=\"token function\">getBalance<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">add<\/span><span class=\"token punctuation\">(<\/span>amount<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        accountMapper<span class=\"token punctuation\">.<\/span><span class=\"token function\">update<\/span><span class=\"token punctuation\">(<\/span>fromAccount<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        accountMapper<span class=\"token punctuation\">.<\/span><span class=\"token function\">update<\/span><span class=\"token punctuation\">(<\/span>toAccount<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u4f7f\u7528SERIALIZABLE\u9694\u79bb\u7ea7\u522b&#xff0c;\u786e\u4fdd\u9ad8\u5ea6\u4e00\u81f4\u6027<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Transactional<\/span><span class=\"token punctuation\">(<\/span>isolation <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">Isolation<\/span><span class=\"token punctuation\">.<\/span><span class=\"token constant\">SERIALIZABLE<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">batchTransfer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">TransferRequest<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> requests<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">TransferRequest<\/span> request <span class=\"token operator\">:<\/span> requests<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token function\">transfer<\/span><span class=\"token punctuation\">(<\/span>request<span class=\"token punctuation\">.<\/span><span class=\"token function\">getFromId<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> request<span class=\"token punctuation\">.<\/span><span class=\"token function\">getToId<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> request<span class=\"token punctuation\">.<\/span><span class=\"token function\">getAmount<\/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><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d&#xff0c;\u6211\u4eec\u4e3a\u4e0d\u540c\u7684\u4e1a\u52a1\u573a\u666f\u9009\u62e9\u4e86\u4e0d\u540c\u7684\u9694\u79bb\u7ea7\u522b\u3002\u5bf9\u4e8e\u666e\u901a\u8f6c\u8d26&#xff0c;\u4f7f\u7528READ_COMMITTED\u5df2\u7ecf\u8db3\u591f&#xff1b;\u800c\u5bf9\u4e8e\u6279\u91cf\u8f6c\u8d26\u8fd9\u79cd\u8981\u6c42\u9ad8\u5ea6\u4e00\u81f4\u6027\u7684\u64cd\u4f5c&#xff0c;\u4f7f\u7528\u4e86SERIALIZABLE\u9694\u79bb\u7ea7\u522b\u3002<\/p>\n<h4>4.3 \u9694\u79bb\u7ea7\u522b\u4e0e\u5e76\u53d1\u95ee\u9898\u7684\u5173\u7cfb<\/h4>\n<table>\n<tr>\u9694\u79bb\u7ea7\u522b\u810f\u8bfb\u4e0d\u53ef\u91cd\u590d\u8bfb\u5e7b\u8bfb\u6027\u80fd\u5f71\u54cd<\/tr>\n<tbody>\n<tr>\n<td>READ_UNCOMMITTED<\/td>\n<td>\u53ef\u80fd\u53d1\u751f<\/td>\n<td>\u53ef\u80fd\u53d1\u751f<\/td>\n<td>\u53ef\u80fd\u53d1\u751f<\/td>\n<td>\u6700\u5c0f<\/td>\n<\/tr>\n<tr>\n<td>READ_COMMITTED<\/td>\n<td>\u4e0d\u4f1a\u53d1\u751f<\/td>\n<td>\u53ef\u80fd\u53d1\u751f<\/td>\n<td>\u53ef\u80fd\u53d1\u751f<\/td>\n<td>\u8f83\u5c0f<\/td>\n<\/tr>\n<tr>\n<td>REPEATABLE_READ<\/td>\n<td>\u4e0d\u4f1a\u53d1\u751f<\/td>\n<td>\u4e0d\u4f1a\u53d1\u751f<\/td>\n<td>\u53ef\u80fd\u53d1\u751f<\/td>\n<td>\u4e2d\u7b49<\/td>\n<\/tr>\n<tr>\n<td>SERIALIZABLE<\/td>\n<td>\u4e0d\u4f1a\u53d1\u751f<\/td>\n<td>\u4e0d\u4f1a\u53d1\u751f<\/td>\n<td>\u4e0d\u4f1a\u53d1\u751f<\/td>\n<td>\u6700\u5927<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>  #mermaid-svg-s33nWjOqfBEp12mt {font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:16px;fill:#ccc;}#mermaid-svg-s33nWjOqfBEp12mt .error-icon{fill:#a44141;}#mermaid-svg-s33nWjOqfBEp12mt .error-text{fill:#ddd;stroke:#ddd;}#mermaid-svg-s33nWjOqfBEp12mt .edge-thickness-normal{stroke-width:2px;}#mermaid-svg-s33nWjOqfBEp12mt .edge-thickness-thick{stroke-width:3.5px;}#mermaid-svg-s33nWjOqfBEp12mt .edge-pattern-solid{stroke-dasharray:0;}#mermaid-svg-s33nWjOqfBEp12mt .edge-pattern-dashed{stroke-dasharray:3;}#mermaid-svg-s33nWjOqfBEp12mt .edge-pattern-dotted{stroke-dasharray:2;}#mermaid-svg-s33nWjOqfBEp12mt .marker{fill:#333333;stroke:#333333;}#mermaid-svg-s33nWjOqfBEp12mt .marker.cross{stroke:#333333;}#mermaid-svg-s33nWjOqfBEp12mt svg{font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:16px;}#mermaid-svg-s33nWjOqfBEp12mt .pieCircle{stroke:black;stroke-width:2px;opacity:0.7;}#mermaid-svg-s33nWjOqfBEp12mt .pieTitleText{text-anchor:middle;font-size:25px;fill:hsl(28.5714285714, 17.3553719008%, 86.2745098039%);font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;}#mermaid-svg-s33nWjOqfBEp12mt .slice{font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;fill:#ccc;font-size:17px;}#mermaid-svg-s33nWjOqfBEp12mt .legend text{fill:hsl(28.5714285714, 17.3553719008%, 86.2745098039%);font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:17px;}#mermaid-svg-s33nWjOqfBEp12mt :root{&#8211;mermaid-font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;}<\/p>\n<p>    60%<\/p>\n<p>    25%<\/p>\n<p>    10%<\/p>\n<p>    5%<\/p>\n<p>    \u5404\u9694\u79bb\u7ea7\u522b\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\u7684\u4f7f\u7528\u6bd4\u4f8b<\/p>\n<p>     READ_COMMITTED<\/p>\n<p>     REPEATABLE_READ<\/p>\n<p>     SERIALIZABLE<\/p>\n<p>     READ_UNCOMMITTED<\/p>\n<p>\u56fe5&#xff1a;\u4e8b\u52a1\u9694\u79bb\u7ea7\u522b\u4f7f\u7528\u6bd4\u4f8b\u997c\u56fe &#8211; \u5c55\u793a\u4e86\u4e0d\u540c\u9694\u79bb\u7ea7\u522b\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\u7684\u5e94\u7528\u6bd4\u4f8b<\/p>\n<h3>5. Spring\u4e8b\u52a1\u7684\u9ad8\u7ea7\u7279\u6027<\/h3>\n<h4>5.1 \u53ea\u8bfb\u4e8b\u52a1<\/h4>\n<p>\u53ea\u8bfb\u4e8b\u52a1\u662f\u4e00\u79cd\u4f18\u5316\u624b\u6bb5&#xff0c;\u544a\u8bc9\u6570\u636e\u5e93\u8fd9\u4e2a\u4e8b\u52a1\u53ea\u4f1a\u8bfb\u53d6\u6570\u636e&#xff0c;\u4e0d\u4f1a\u4fee\u6539\u6570\u636e\u3002<\/p>\n<p><span class=\"token annotation punctuation\">&#064;Service<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">ReportServiceImpl<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">ReportService<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Autowired<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">OrderMapper<\/span> orderMapper<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u4f7f\u7528\u53ea\u8bfb\u4e8b\u52a1\u4f18\u5316\u67e5\u8be2\u6027\u80fd<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Transactional<\/span><span class=\"token punctuation\">(<\/span>readOnly <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">OrderSummary<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">generateMonthlySalesReport<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> orderMapper<span class=\"token punctuation\">.<\/span><span class=\"token function\">findMonthlySummary<\/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>\u53ea\u8bfb\u4e8b\u52a1\u7684\u4f18\u52bf&#xff1a;<\/p>\n<li>\u6570\u636e\u5e93\u53ef\u4ee5\u4f18\u5316\u67e5\u8be2<\/li>\n<li>\u907f\u514d\u4e86\u4e0d\u5fc5\u8981\u7684\u9501<\/li>\n<li>\u63d0\u9ad8\u4e86\u5e76\u53d1\u6027\u80fd<\/li>\n<h4>5.2 \u4e8b\u52a1\u8d85\u65f6<\/h4>\n<p>\u4e8b\u52a1\u8d85\u65f6\u5b9a\u4e49\u4e86\u4e8b\u52a1\u5fc5\u987b\u5728\u6307\u5b9a\u65f6\u95f4\u5185\u5b8c\u6210&#xff0c;\u5426\u5219\u81ea\u52a8\u56de\u6eda\u3002<\/p>\n<p><span class=\"token annotation punctuation\">&#064;Service<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">ImportServiceImpl<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">ImportService<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Autowired<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">ProductMapper<\/span> productMapper<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u8bbe\u7f6e\u4e8b\u52a1\u8d85\u65f6\u4e3a30\u79d2<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Transactional<\/span><span class=\"token punctuation\">(<\/span>timeout <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">30<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">importProducts<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Product<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> products<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Product<\/span> product <span class=\"token operator\">:<\/span> products<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            productMapper<span class=\"token punctuation\">.<\/span><span class=\"token function\">insert<\/span><span class=\"token punctuation\">(<\/span>product<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>\u8bbe\u7f6e\u5408\u7406\u7684\u8d85\u65f6\u65f6\u95f4\u53ef\u4ee5\u907f\u514d\u957f\u65f6\u95f4\u8fd0\u884c\u7684\u4e8b\u52a1\u5360\u7528\u8d44\u6e90&#xff0c;\u5bfc\u81f4\u7cfb\u7edf\u6027\u80fd\u4e0b\u964d\u3002<\/p>\n<h4>5.3 \u4e8b\u52a1\u56de\u6eda\u89c4\u5219<\/h4>\n<p>Spring\u9ed8\u8ba4\u53ea\u5728\u9047\u5230\u8fd0\u884c\u65f6\u5f02\u5e38\u65f6\u56de\u6eda\u4e8b\u52a1&#xff0c;\u53ef\u4ee5\u901a\u8fc7\u914d\u7f6e\u81ea\u5b9a\u4e49\u56de\u6eda\u89c4\u5219\u3002<\/p>\n<p><span class=\"token annotation punctuation\">&#064;Service<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">OrderProcessServiceImpl<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">OrderProcessService<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u6307\u5b9a\u56de\u6eda\u5f02\u5e38<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Transactional<\/span><span class=\"token punctuation\">(<\/span>rollbackFor <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token class-name\">SQLException<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">class<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">IOException<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">class<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">processOrder<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Order<\/span> order<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">SQLException<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">IOException<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u5904\u7406\u8ba2\u5355\u903b\u8f91<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u6307\u5b9a\u4e0d\u56de\u6eda\u5f02\u5e38<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Transactional<\/span><span class=\"token punctuation\">(<\/span>noRollbackFor <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token class-name\">ItemOutOfStockException<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">class<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">createOrderWithPartialItems<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Order<\/span> order<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u5373\u4f7f\u90e8\u5206\u5546\u54c1\u7f3a\u8d27&#xff0c;\u4e5f\u521b\u5efa\u8ba2\u5355<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u901a\u8fc7rollbackFor\u548cnoRollbackFor\u5c5e\u6027&#xff0c;\u53ef\u4ee5\u7cbe\u786e\u63a7\u5236\u54ea\u4e9b\u5f02\u5e38\u4f1a\u5bfc\u81f4\u4e8b\u52a1\u56de\u6eda&#xff0c;\u54ea\u4e9b\u4e0d\u4f1a\u3002<\/p>\n<p>  #mermaid-svg-aDsic3NHCxuaWzIp {font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:16px;fill:#333;}#mermaid-svg-aDsic3NHCxuaWzIp .error-icon{fill:#552222;}#mermaid-svg-aDsic3NHCxuaWzIp 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\u67e5\u8be2\u64cd\u4f5c<br \/>\n          \u4e3b\u8981\u4f18\u52bf: \u907f\u514d\u4e0d\u5fc5\u8981\u7684\u9501&#xff0c;\u6570\u636e\u5e93\u53ef\u4f18\u5316\u67e5\u8be2<\/p>\n<p>          \u6027\u80fd\u63d0\u5347: 25%<br \/>\n          \u9002\u7528\u573a\u666f: \u957f\u65f6\u95f4\u8fd0\u884c\u7684\u4e8b\u52a1<br \/>\n          \u4e3b\u8981\u4f18\u52bf: \u907f\u514d\u4e8b\u52a1\u957f\u65f6\u95f4\u5360\u7528\u8d44\u6e90<\/p>\n<p>          \u6027\u80fd\u63d0\u5347: 15%<br \/>\n          \u9002\u7528\u573a\u666f: \u7279\u5b9a\u5e76\u53d1\u9700\u6c42<br \/>\n          \u4e3b\u8981\u4f18\u52bf: \u6839\u636e\u4e1a\u52a1\u9700\u6c42\u5e73\u8861\u4e00\u81f4\u6027\u548c\u6027\u80fd<\/p>\n<p>          \u6027\u80fd\u63d0\u5347: 30%<br \/>\n          \u9002\u7528\u573a\u666f: \u590d\u6742\u4e1a\u52a1\u6d41\u7a0b<br \/>\n          \u4e3b\u8981\u4f18\u52bf: \u7cbe\u786e\u63a7\u5236\u4e8b\u52a1\u8fb9\u754c\u548c\u5d4c\u5957\u5173\u7cfb<\/p>\n<p>          B,C,D,E,F<\/p>\n<p>          G,H,I,J,K<\/p>\n<p>\u56fe6&#xff1a;\u4e8b\u52a1\u914d\u7f6e\u6027\u80fd\u5f71\u54cdXY\u56fe &#8211; \u5c55\u793a\u4e86\u4e0d\u540c\u4e8b\u52a1\u914d\u7f6e\u5bf9\u7cfb\u7edf\u6027\u80fd\u7684\u5f71\u54cd\u7a0b\u5ea6<\/p>\n<h3>6. \u4e8b\u52a1\u7ba1\u7406\u6700\u4f73\u5b9e\u8df5<\/h3>\n<h4>6.1 \u4e8b\u52a1\u8fb9\u754c\u8bbe\u8ba1<\/h4>\n<p>\u5408\u7406\u8bbe\u8ba1\u4e8b\u52a1\u8fb9\u754c\u662f\u4e8b\u52a1\u7ba1\u7406\u7684\u5173\u952e\u3002<\/p>\n<p><span class=\"token comment\">\/\/ \u4e0d\u63a8\u8350&#xff1a;\u4e8b\u52a1\u7c92\u5ea6\u8fc7\u7ec6<\/span><br \/>\n<span class=\"token annotation punctuation\">&#064;Service<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">BadOrderServiceImpl<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">OrderService<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Transactional<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">saveOrder<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Order<\/span> order<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        orderMapper<span class=\"token punctuation\">.<\/span><span class=\"token function\">insert<\/span><span class=\"token punctuation\">(<\/span>order<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Transactional<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">saveOrderItems<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">OrderItem<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> items<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">OrderItem<\/span> item <span class=\"token operator\">:<\/span> items<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            orderItemMapper<span class=\"token punctuation\">.<\/span><span class=\"token function\">insert<\/span><span class=\"token punctuation\">(<\/span>item<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\">\/\/ \u975e\u4e8b\u52a1\u65b9\u6cd5\u8c03\u7528\u4e0a\u9762\u4e24\u4e2a\u4e8b\u52a1\u65b9\u6cd5&#xff0c;\u65e0\u6cd5\u4fdd\u8bc1\u539f\u5b50\u6027<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">createOrder<\/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><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">OrderItem<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> items<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">saveOrder<\/span><span class=\"token punctuation\">(<\/span>order<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">saveOrderItems<\/span><span class=\"token punctuation\">(<\/span>items<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\">\/\/ \u63a8\u8350&#xff1a;\u5408\u7406\u7684\u4e8b\u52a1\u8fb9\u754c<\/span><br \/>\n<span class=\"token annotation punctuation\">&#064;Service<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">GoodOrderServiceImpl<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">OrderService<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Transactional<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">createOrder<\/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><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">OrderItem<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> items<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        orderMapper<span class=\"token punctuation\">.<\/span><span class=\"token function\">insert<\/span><span class=\"token punctuation\">(<\/span>order<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">OrderItem<\/span> item <span class=\"token operator\">:<\/span> items<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            item<span class=\"token punctuation\">.<\/span><span class=\"token function\">setOrderId<\/span><span class=\"token punctuation\">(<\/span>order<span class=\"token punctuation\">.<\/span><span class=\"token function\">getId<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            orderItemMapper<span class=\"token punctuation\">.<\/span><span class=\"token function\">insert<\/span><span class=\"token punctuation\">(<\/span>item<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>\u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d&#xff0c;\u7b2c\u4e00\u79cd\u5b9e\u73b0\u65b9\u5f0f\u5c06\u4e8b\u52a1\u5206\u6563\u5728\u591a\u4e2a\u65b9\u6cd5\u4e2d&#xff0c;\u800c\u6700\u7ec8\u7684\u4e1a\u52a1\u65b9\u6cd5createOrder\u5374\u4e0d\u662f\u4e8b\u52a1\u6027\u7684&#xff0c;\u8fd9\u53ef\u80fd\u5bfc\u81f4\u6570\u636e\u4e0d\u4e00\u81f4\u3002\u7b2c\u4e8c\u79cd\u5b9e\u73b0\u65b9\u5f0f\u5c06\u6574\u4e2a\u4e1a\u52a1\u64cd\u4f5c\u653e\u5728\u4e00\u4e2a\u4e8b\u52a1\u4e2d&#xff0c;\u786e\u4fdd\u4e86\u539f\u5b50\u6027\u3002<\/p>\n<h4>6.2 \u907f\u514d\u4e8b\u52a1\u5d4c\u5957\u5bfc\u81f4\u7684\u95ee\u9898<\/h4>\n<p><span class=\"token annotation punctuation\">&#064;Service<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">SelfInvocationServiceImpl<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">SelfInvocationService<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u95ee\u9898&#xff1a;\u81ea\u8c03\u7528\u5bfc\u81f4\u4e8b\u52a1\u5931\u6548<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Transactional<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">methodA<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u4e00\u4e9b\u64cd\u4f5c&#8230;<\/span><br \/>\n        <span class=\"token function\">methodB<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u8fd9\u91cc\u7684\u4e8b\u52a1\u4e0d\u4f1a\u751f\u6548&#xff01;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Transactional<\/span><span class=\"token punctuation\">(<\/span>propagation <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">Propagation<\/span><span class=\"token punctuation\">.<\/span><span class=\"token constant\">REQUIRES_NEW<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">methodB<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u4e00\u4e9b\u64cd\u4f5c&#8230;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u89e3\u51b3\u65b9\u6848&#xff1a;\u901a\u8fc7\u4ee3\u7406\u5bf9\u8c61\u8c03\u7528<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Autowired<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">SelfInvocationService<\/span> self<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Transactional<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">methodC<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u4e00\u4e9b\u64cd\u4f5c&#8230;<\/span><br \/>\n        self<span class=\"token punctuation\">.<\/span><span class=\"token function\">methodB<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ 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class-name\">ExceptionHandlingServiceImpl<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">ExceptionHandlingService<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u4e0d\u63a8\u8350&#xff1a;\u541e\u6389\u5f02\u5e38\u5bfc\u81f4\u4e8b\u52a1\u65e0\u6cd5\u56de\u6eda<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Transactional<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">badExceptionHandling<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u4e00\u4e9b\u53ef\u80fd\u629b\u51fa\u5f02\u5e38\u7684\u64cd\u4f5c<\/span><br \/>\n            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punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u4e8b\u52a1\u4e0d\u4f1a\u56de\u6eda&#xff01;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u63a8\u8350&#xff1a;\u6b63\u786e\u5904\u7406\u5f02\u5e38&#xff0c;\u786e\u4fdd\u4e8b\u52a1\u56de\u6eda<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Transactional<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">goodExceptionHandling<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ 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punctuation\">,<\/span> e<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u91cd\u65b0\u629b\u51fa\u5f02\u5e38&#xff0c;\u786e\u4fdd\u4e8b\u52a1\u56de\u6eda<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">RuntimeException<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Transaction failed&#034;<\/span><span class=\"token punctuation\">,<\/span> e<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 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\/>\n          \u8d1f\u8d23: \u5f00\u53d1\u56e2\u961f<\/p>\n<p>          \u5355\u5143\u6d4b\u8bd5\u4e8b\u52a1\u884c\u4e3a<br \/>\n          \u91cd\u8981\u6027: \u2605\u2605\u2605\u2605\u2606<br \/>\n          \u8d1f\u8d23: \u6d4b\u8bd5\u56e2\u961f<\/p>\n<p>          \u5e76\u53d1\u6d4b\u8bd5<br \/>\n          \u91cd\u8981\u6027: \u2605\u2605\u2605\u2605\u2605<br \/>\n          \u8d1f\u8d23: \u6d4b\u8bd5\u56e2\u961f<\/p>\n<p>          \u6027\u80fd\u6d4b\u8bd5<br \/>\n          \u91cd\u8981\u6027: \u2605\u2605\u2605\u2606\u2606<br \/>\n          \u8d1f\u8d23: \u6d4b\u8bd5\u56e2\u961f\u3001\u6027\u80fd\u5de5\u7a0b\u5e08<\/p>\n<p>          \u8bc6\u522b\u6027\u80fd\u74f6\u9888<br \/>\n          \u91cd\u8981\u6027: \u2605\u2605\u2605\u2605\u2606<br \/>\n          \u8d1f\u8d23: \u6027\u80fd\u5de5\u7a0b\u5e08<\/p>\n<p>          \u8c03\u6574\u4e8b\u52a1\u914d\u7f6e<br \/>\n          \u91cd\u8981\u6027: \u2605\u2605\u2605\u2605\u2605<br \/>\n          \u8d1f\u8d23: \u5f00\u53d1\u56e2\u961f\u3001\u67b6\u6784\u5e08<\/p>\n<p>          \u76d1\u63a7\u4e8b\u52a1\u6267\u884c<br \/>\n          \u91cd\u8981\u6027: \u2605\u2605\u2605\u2606\u2606<br \/>\n          \u8d1f\u8d23: \u8fd0\u7ef4\u56e2\u961f<\/p>\n<p>          B,C,D,E<\/p>\n<p>          B1,C1,D2,E2<\/p>\n<p>          B2,C2,D1,E1<\/p>\n<p>          B3,C3,D3,E3<\/p>\n<p>\u56fe7&#xff1a;\u4e8b\u52a1\u7ba1\u7406\u6700\u4f73\u5b9e\u8df5\u7528\u6237\u65c5\u7a0b\u56fe &#8211; \u5c55\u793a\u4e86\u5728\u9879\u76ee\u751f\u547d\u5468\u671f\u4e2d\u5e94\u7528\u4e8b\u52a1\u7ba1\u7406\u6700\u4f73\u5b9e\u8df5\u7684\u8fc7\u7a0b<\/p>\n<h3>7. \u5e38\u89c1\u95ee\u9898\u4e0e\u89e3\u51b3\u65b9\u6848<\/h3>\n<h4>7.1 \u4e8b\u52a1\u4e0d\u751f\u6548\u7684\u5e38\u89c1\u539f\u56e0<\/h4>\n<li>\u65b9\u6cd5\u4e0d\u662fpublic\u7684&#xff1a;Spring AOP\u4ee3\u7406\u53ea\u62e6\u622apublic\u65b9\u6cd5<\/li>\n<li>\u81ea\u8c03\u7528\u95ee\u9898&#xff1a;\u540c\u4e00\u4e2a\u7c7b\u4e2d\u7684\u65b9\u6cd5\u76f4\u63a5\u8c03\u7528<\/li>\n<li>\u5f02\u5e38\u88ab\u6355\u83b7\u4f46\u672a\u91cd\u65b0\u629b\u51fa&#xff1a;Spring\u65e0\u6cd5\u611f\u77e5\u5f02\u5e38<\/li>\n<li>\u4f7f\u7528\u4e86\u9519\u8bef\u7684\u4e8b\u52a1\u7ba1\u7406\u5668&#xff1a;\u5982\u5728JPA\u9879\u76ee\u4e2d\u4f7f\u7528\u4e86JDBC\u4e8b\u52a1\u7ba1\u7406\u5668<\/li>\n<li>\u6570\u636e\u5e93\u4e0d\u652f\u6301\u4e8b\u52a1&#xff1a;\u5982\u4f7f\u7528\u4e86MyISAM\u5f15\u64ce\u7684MySQL\u8868<\/li>\n<p><span class=\"token comment\">\/\/ \u793a\u4f8b&#xff1a;\u4fee\u590d\u4e8b\u52a1\u4e0d\u751f\u6548\u7684\u95ee\u9898<\/span><br \/>\n<span class=\"token annotation punctuation\">&#064;Service<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TransactionFixServiceImpl<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">TransactionFixService<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Autowired<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">ApplicationContext<\/span> context<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u95ee\u98981&#xff1a;\u975epublic\u65b9\u6cd5<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Transactional<\/span> <span class=\"token comment\">\/\/ \u8fd9\u4e2a\u4e8b\u52a1\u4e0d\u4f1a\u751f\u6548&#xff01;<\/span><br \/>\n    <span class=\"token keyword\">protected<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">updateProtected<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u64cd\u4f5c&#8230;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u4fee\u590d1&#xff1a;\u6539\u4e3apublic\u65b9\u6cd5<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Transactional<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">updatePublic<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u64cd\u4f5c&#8230;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u95ee\u98982&#xff1a;\u81ea\u8c03\u7528\u95ee\u9898<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Transactional<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">outerMethod<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u4e00\u4e9b\u64cd\u4f5c&#8230;<\/span><br \/>\n        <span class=\"token function\">innerMethod<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5185\u90e8\u65b9\u6cd5\u7684\u4e8b\u52a1\u4e0d\u4f1a\u751f\u6548&#xff01;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Transactional<\/span><span class=\"token punctuation\">(<\/span>propagation <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">Propagation<\/span><span class=\"token punctuation\">.<\/span><span class=\"token constant\">REQUIRES_NEW<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">innerMethod<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u64cd\u4f5c&#8230;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u4fee\u590d2&#xff1a;\u901a\u8fc7\u4ee3\u7406\u5bf9\u8c61\u8c03\u7528<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Transactional<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">fixedOuterMethod<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u4e00\u4e9b\u64cd\u4f5c&#8230;<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u83b7\u53d6\u4ee3\u7406\u5bf9\u8c61<\/span><br \/>\n        <span class=\"token class-name\">TransactionFixService<\/span> proxy <span class=\"token operator\">&#061;<\/span> context<span class=\"token punctuation\">.<\/span><span class=\"token function\">getBean<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">TransactionFixService<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">class<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        proxy<span class=\"token punctuation\">.<\/span><span class=\"token function\">innerMethod<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u901a\u8fc7\u4ee3\u7406\u8c03\u7528&#xff0c;\u4e8b\u52a1\u4f1a\u751f\u6548<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>7.2 \u4e8b\u52a1\u56de\u6eda\u95ee\u9898<\/h4>\n<p><span class=\"token annotation punctuation\">&#064;Service<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">RollbackServiceImpl<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">RollbackService<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u95ee\u9898&#xff1a;\u68c0\u67e5\u5f02\u5e38\u4e0d\u4f1a\u5bfc\u81f4\u56de\u6eda<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Transactional<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">updateWithCheckedException<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">IOException<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u4e00\u4e9b\u64cd\u4f5c&#8230;<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>condition<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 class-name\">IOException<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Error occurred&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u4e0d\u4f1a\u5bfc\u81f4\u56de\u6eda&#xff01;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u4fee\u590d1&#xff1a;\u6307\u5b9a\u56de\u6eda\u5f02\u5e38<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Transactional<\/span><span class=\"token punctuation\">(<\/span>rollbackFor <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">IOException<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">class<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">fixedUpdateWithRollbackFor<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">IOException<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u4e00\u4e9b\u64cd\u4f5c&#8230;<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>condition<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 class-name\">IOException<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Error occurred&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u73b0\u5728\u4f1a\u56de\u6eda<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u4fee\u590d2&#xff1a;\u8f6c\u6362\u4e3a\u8fd0\u884c\u65f6\u5f02\u5e38<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Transactional<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">fixedUpdateWithRuntimeException<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">IOException<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u4e00\u4e9b\u64cd\u4f5c&#8230;<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>condition<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 class-name\">IOException<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Error occurred&#034;<\/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> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">IOException<\/span> e<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 class-name\">RuntimeException<\/span><span class=\"token punctuation\">(<\/span>e<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u8f6c\u6362\u4e3a\u8fd0\u884c\u65f6\u5f02\u5e38&#xff0c;\u4f1a\u5bfc\u81f4\u56de\u6eda<\/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>Spring\u9ed8\u8ba4\u53ea\u5728\u9047\u5230\u8fd0\u884c\u65f6\u5f02\u5e38&#xff08;RuntimeException\u53ca\u5176\u5b50\u7c7b&#xff09;\u548cError\u65f6\u56de\u6eda\u4e8b\u52a1&#xff0c;\u5bf9\u4e8e\u68c0\u67e5\u5f02\u5e38&#xff08;\u5982IOException&#xff09;\u9ed8\u8ba4\u4e0d\u56de\u6eda\u3002\u53ef\u4ee5\u901a\u8fc7rollbackFor\u5c5e\u6027\u6307\u5b9a\u9700\u8981\u56de\u6eda\u7684\u5f02\u5e38\u7c7b\u578b&#xff0c;\u6216\u8005\u5728\u4ee3\u7801\u4e2d\u5c06\u68c0\u67e5\u5f02\u5e38\u8f6c\u6362\u4e3a\u8fd0\u884c\u65f6\u5f02\u5e38\u3002<\/p>\n<h4>7.3 \u4e8b\u52a1\u6027\u80fd\u4f18\u5316<\/h4>\n<p><span class=\"token annotation punctuation\">&#064;Service<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">PerformanceOptimizationServiceImpl<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">PerformanceOptimizationService<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u4f18\u53161&#xff1a;\u4f7f\u7528\u53ea\u8bfb\u4e8b\u52a1<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Transactional<\/span><span class=\"token punctuation\">(<\/span>readOnly <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Product<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">findAllProducts<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> productMapper<span class=\"token punctuation\">.<\/span><span class=\"token function\">findAll<\/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\">\/\/ \u4f18\u53162&#xff1a;\u8bbe\u7f6e\u5408\u9002\u7684\u9694\u79bb\u7ea7\u522b<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Transactional<\/span><span class=\"token punctuation\">(<\/span>isolation <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">Isolation<\/span><span class=\"token punctuation\">.<\/span><span class=\"token constant\">READ_COMMITTED<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">updateProduct<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Product<\/span> product<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        productMapper<span class=\"token punctuation\">.<\/span><span class=\"token function\">update<\/span><span class=\"token punctuation\">(<\/span>product<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u4f18\u53163&#xff1a;\u907f\u514d\u957f\u4e8b\u52a1<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Transactional<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">batchImport<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Product<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> products<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u5206\u6279\u5904\u7406&#xff0c;\u907f\u514d\u5355\u4e2a\u957f\u4e8b\u52a1<\/span><br \/>\n        <span class=\"token keyword\">int<\/span> batchSize <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/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> products<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&#043;&#061;<\/span> batchSize<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">int<\/span> end <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">Math<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">min<\/span><span class=\"token punctuation\">(<\/span>i <span class=\"token operator\">&#043;<\/span> batchSize<span class=\"token punctuation\">,<\/span> products<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/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 class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Product<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> batch <span class=\"token operator\">&#061;<\/span> products<span class=\"token punctuation\">.<\/span><span class=\"token function\">subList<\/span><span class=\"token punctuation\">(<\/span>i<span class=\"token punctuation\">,<\/span> end<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token function\">batchInsert<\/span><span class=\"token punctuation\">(<\/span>batch<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 annotation punctuation\">&#064;Transactional<\/span><span class=\"token punctuation\">(<\/span>propagation <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">Propagation<\/span><span class=\"token punctuation\">.<\/span><span class=\"token constant\">REQUIRES_NEW<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">batchInsert<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Product<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> batch<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token 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