{"id":10006648,"date":"2022-10-08T09:32:41","date_gmt":"2022-10-08T01:32:41","guid":{"rendered":"https:\/\/ityet.com\/?p=10006648"},"modified":"2022-10-08T09:32:41","modified_gmt":"2022-10-08T01:32:41","slug":"%e9%9d%a2%e8%af%95%e7%aa%81%e5%87%bb88%ef%bc%9a%e5%8a%a0%e5%85%a5%e4%ba%8b%e5%8a%a1%e5%92%8c%e5%b5%8c%e5%a5%97%e4%ba%8b%e5%8a%a1%e6%9c%89%e4%bb%80%e4%b9%88%e5%8c%ba%e5%88%ab%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10006648","title":{"rendered":"\u9762\u8bd5\u7a81\u51fb88\uff1a\u52a0\u5165\u4e8b\u52a1\u548c\u5d4c\u5957\u4e8b\u52a1\u6709\u4ec0\u4e48\u533a\u522b\uff1f"},"content":{"rendered":"

\u52a0\u5165\u4e8b\u52a1\u548c\u5d4c\u5957\u4e8b\u52a1\u662f\u6307\u5728 Spring \u4e8b\u52a1\u4f20\u64ad\u673a\u5236\u4e2d\u7684\u52a0\u5165\u4e8b\u52a1\uff08REQUIRED\uff09\u548c\u5d4c\u5957\u4e8b\u52a1\uff08NESTED\uff09\u7684\u533a\u522b\uff0c\u4e8c\u8005\u770b\u4f3c\u5f88\u50cf\uff0c\u5b9e\u5219\u622a\u7136\u4e0d\u540c\uff0c\u90a3\u4e48\u5b83\u4eec\u6709\u4ec0\u4e48\u533a\u522b\u5462\uff1f\u63a5\u4e0b\u6765\u6211\u4eec\u4e00\u8d77\u6765\u770b\u3002<\/p>\n

Spring \u4e8b\u52a1\u4f20\u64ad\u673a\u5236\u662f\u6307\uff0c\u5305\u542b\u591a\u4e2a\u4e8b\u52a1\u7684\u65b9\u6cd5\u5728\u76f8\u4e92\u8c03\u7528\u65f6\uff0c\u4e8b\u52a1\u662f\u5982\u4f55\u5728\u8fd9\u4e9b\u65b9\u6cd5\u95f4\u4f20\u64ad\u7684\uff0cSpring \u4e8b\u52a1\u4f20\u64ad\u673a\u5236\u5206\u4e3a 3 \u5927\u7c7b\uff0c\u603b\u5171 7 \u79cd\u7ea7\u522b\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff1a
\"\"
\u5176\u4e2d\uff0c\u652f\u6301\u5f53\u524d\u4e8b\u52a1\u7684 REQUIRED \u662f\u52a0\u5165\uff08\u5f53\u524d\uff09\u4e8b\u52a1\uff0c\u800c NESTED \u662f\u5d4c\u5957\uff08\u5f53\u524d\uff09\u4e8b\u52a1<\/strong>\uff0c\u672c\u6587\u8981\u8ba8\u8bba\u7684\u5c31\u662f\u8fd9\u4e8c\u8005\u7684\u533a\u522b\u3002<\/p>\n

1.\u52a0\u5165\u4e8b\u52a1<\/h2>\n

\u52a0\u5165\u4e8b\u52a1 REQUIRED \u662f Spring \u4e8b\u52a1\u7684\u9ed8\u8ba4\u4f20\u64ad\u7ea7\u522b\u3002<\/p>\n

\u6240\u8c13\u7684\u52a0\u5165\u5f53\u524d\u4e8b\u52a1\uff0c\u662f\u6307\u5982\u679c\u5f53\u524d\u5b58\u5728\u4e8b\u52a1\uff0c\u5219\u52a0\u5165\u8be5\u4e8b\u52a1<\/strong>\uff1b\u5982\u679c\u5f53\u524d\u6ca1\u6709\u4e8b\u52a1\uff0c\u5219\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u4e8b\u52a1\u3002\u6211\u4eec\u8fd9\u91cc\u91cd\u70b9\u8981\u8ba8\u8bba\u7684\u662f\u7b2c\u4e00\u79cd\u60c5\u51b5\uff0c\u4e5f\u5c31\u662f\u5f53\u524d\u5b58\u5728\u4e8b\u52a1\u7684\u60c5\u51b5\u4e0b\uff0c\u5b83\u548c\u5d4c\u5957\u4e8b\u52a1\u7684\u533a\u522b\uff0c\u63a5\u4e0b\u6765\u6211\u4eec\u901a\u8fc7\u4e00\u4e2a\u793a\u4f8b\u6765\u770b\u52a0\u5165\u4e8b\u52a1\u7684\u4f7f\u7528\u548c\u6267\u884c\u7279\u70b9\u3002<\/p>\n

\u6211\u4eec\u8981\u5b9e\u73b0\u7684\u662f\u7528\u6237\u6dfb\u52a0\u529f\u80fd\uff0c\u53ea\u4e0d\u8fc7\u5728\u6dfb\u52a0\u7528\u6237\u65f6\uff0c\u6211\u4eec\u9700\u8981\u7ed9\u7528\u6237\u8868\u548c\u65e5\u5fd7\u8868\u4e2d\u5206\u522b\u63d2\u5165\u4e00\u6761\u6570\u636e\uff0cUserController \u5b9e\u73b0\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n

@Transactional(propagation = Propagation.REQUIRED)\n@RequestMapping("\/add")\npublic int add(UserInfo userInfo) {\n    int result = 0;\n    int userResult = userService.add(userInfo);\n    System.out.println("\u7528\u6237\u6dfb\u52a0\u7ed3\u679c\uff1a" + userResult);\n    if (userResult > 0) {\n        LogInfo logInfo = new LogInfo();\n        logInfo.setName("\u6dfb\u52a0\u7528\u6237");\n        logInfo.setDesc("\u6dfb\u52a0\u7528\u6237\u7ed3\u679c\uff1a" + userResult);\n        int logResult = logService.add(logInfo);\n        System.out.println("\u65e5\u5fd7\u6dfb\u52a0\u7ed3\u679c\uff1a" + logResult);\n        result = 1;\n    }\n    return result;\n}<\/code><\/pre>\n
\u4ece\u4e0a\u8ff0\u4ee3\u7801\u53ef\u4ee5\u770b\u51fa\uff0c\u6dfb\u52a0\u7528\u6237\u4f7f\u7528\u4e86\u4e8b\u52a1\uff0c\u5e76\u8bbe\u7f6e\u4e86\u4e8b\u52a1\u4f20\u64ad\u673a\u5236\u4e3a REQUIRED\uff08\u52a0\u5165\u4e8b\u52a1\uff09\uff0c\u6b64\u63a7\u5236\u5668\u8c03\u7528\u7684 UserService \u5b9e\u73b0\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
@Transactional(propagation = Propagation.REQUIRED)\npublic int add(UserInfo userInfo) {\n    int result = userMapper.add(userInfo);\n    return result;\n}<\/code><\/pre>\n
\u4ece\u4e0a\u8ff0\u4ee3\u7801\u53ef\u4ee5\u770b\u51fa\uff0c\u5b83\u4e5f\u662f\u4f7f\u7528\u4e8b\u52a1\uff0c\u5e76\u8bbe\u7f6e\u4e86\u4e8b\u52a1\u7684\u4f20\u64ad\u673a\u5236\u4e3a REQUIRED\uff0c\u800c LogService \u4e5f\u662f\u7c7b\u4f3c\u7684\u5b9e\u73b0\u4ee3\u7801\uff1a<\/p>\n
@Transactional(propagation = Propagation.REQUIRED)\npublic int add(LogInfo logInfo) {\n    int result = logMapper.add(logInfo);\n    try {\n        int number = 10 \/ 0;\n    } catch (Exception e) {\n        \/\/ \u624b\u52a8\u56de\u6eda\u4e8b\u52a1\n        TransactionAspectSupport.currentTransactionStatus().setRollbackOnly();\n    }\n    return result;\n}<\/code><\/pre>\n
\u4ece\u4e0a\u8ff0\u4ee3\u7801\u6211\u4eec\u53ef\u4ee5\u770b\u51fa\uff0c\u5728\u8bbe\u7f6e\u4e8b\u52a1\u4f20\u64ad\u673a\u5236\u7684\u540c\u65f6\uff0c\u6211\u4eec\u4e5f\u5728\u7a0b\u5e8f\u4e2d\u4e3b\u52a8\u7684\u8bbe\u7f6e\u4e86\u4e00\u4e2a\u5f02\u5e38\u3002<\/p>\n
\u8fd0\u884c\u4ee5\u4e0a\u7a0b\u5e8f\u7684\u6267\u884c\u7ed3\u679c\u5982\u4e0b\u56fe\u6240\u793a\uff1a
\"image.png\"
\u4ece\u4e0a\u8ff0\u7ed3\u679c\u6211\u4eec\u53ef\u4ee5\u770b\u51fa\uff1a\u5f53\u6211\u4eec\u8bbe\u7f6e\u4e86\u52a0\u5165\u4e8b\u52a1\u7684\u4e8b\u52a1\u4f20\u64ad\u673a\u5236\u4e4b\u540e\uff0c\u7a0b\u5e8f\u7684\u6267\u884c\u7ed3\u679c\u662f\u5c06\u7528\u6237\u8868\u548c\u65e5\u5fd7\u8868\u7684\u4e8b\u52a1\u90fd\u56de\u6eda\u4e86<\/strong>\u3002<\/p>\n
2.\u5d4c\u5957\u4e8b\u52a1<\/h2>\n
\u5d4c\u5957\u4e8b\u52a1\u6307\u7684\u662f\u4e8b\u52a1\u4f20\u64ad\u7ea7\u522b\u4e2d\u7684 NESTED\uff0c\u6240\u8c13\u7684\u5d4c\u5957\u5f53\u524d\u4e8b\u52a1\uff0c\u662f\u6307\u5982\u679c\u5f53\u524d\u5b58\u5728\u4e8b\u52a1\uff0c\u5219\u521b\u5efa\u4e00\u4e2a\u4e8b\u52a1\u4f5c\u4e3a\u5f53\u524d\u4e8b\u52a1\u7684\u5d4c\u5957\u4e8b\u52a1\u6765\u8fd0\u884c<\/strong>\uff1b\u5982\u679c\u5f53\u524d\u6ca1\u6709\u4e8b\u52a1\uff0c\u5219\u8be5\u53d6\u503c\u7b49\u4ef7\u4e8e REQUIRED\u3002\u5f53\u7136\uff0c\u6211\u4eec\u672c\u6587\u8981\u7814\u7a76\u7684\u91cd\u70b9\u4e5f\u662f\u7b2c\u4e00\u79cd\u60c5\u51b5\uff0c\u4e5f\u5c31\u662f\u5f53\u524d\u5b58\u5728\u4e8b\u52a1\u7684\u524d\u63d0\u4e0b\uff0c\u5d4c\u5957\u4e8b\u52a1\u548c\u52a0\u5165\u4e8b\u52a1\u7684\u533a\u522b\u3002<\/p>\n
\u6240\u4ee5\u63a5\u4e0b\u6765\u6211\u4eec\u5c06\u4e0a\u9762\u4ee3\u7801\u4e2d\u7684\u4e8b\u52a1\u4f20\u64ad\u673a\u5236\u6539\u4e3a NESTED\uff0c\u5b83\u7684\u5b9e\u73b0\u4ee3\u7801\u5982\u4e0b\u3002
UserController \u5b9e\u73b0\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
@Transactional(propagation = Propagation.NESTED)\n@RequestMapping("\/add")\npublic int add(UserInfo userInfo) {\n    int result = 0;\n    int userResult = userService.add(userInfo);\n    System.out.println("\u7528\u6237\u6dfb\u52a0\u7ed3\u679c\uff1a" + userResult);\n    if (userResult > 0) {\n        LogInfo logInfo = new LogInfo();\n        logInfo.setName("\u6dfb\u52a0\u7528\u6237");\n        logInfo.setDesc("\u6dfb\u52a0\u7528\u6237\u7ed3\u679c\uff1a" + userResult);\n        int logResult = logService.add(logInfo);\n        System.out.println("\u65e5\u5fd7\u6dfb\u52a0\u7ed3\u679c\uff1a" + logResult);\n        result = 1;\n    }\n    return result;\n}<\/code><\/pre>\n
UserService \u5b9e\u73b0\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
@Transactional(propagation = Propagation.NESTED)\npublic int add(UserInfo userInfo) {\n    int result = userMapper.add(userInfo);\n    return result;\n}<\/code><\/pre>\n
LogService \u5b9e\u73b0\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
@Transactional(propagation = Propagation.NESTED)\npublic int add(LogInfo logInfo) {\n    int result = logMapper.add(logInfo);\n    try {\n        int number = 10 \/ 0;\n    } catch (Exception e) {\n        \/\/ \u624b\u52a8\u56de\u6eda\u4e8b\u52a1\n        TransactionAspectSupport.currentTransactionStatus().setRollbackOnly();\n    }\n    return result;\n}<\/code><\/pre>\n
\u8fd0\u884c\u4ee5\u4e0a\u7a0b\u5e8f\u7684\u6267\u884c\u7ed3\u679c\u5982\u4e0b\u56fe\u6240\u793a\uff1a
\"image.png\"
\u4ece\u4e0a\u8ff0\u7ed3\u679c\u53ef\u4ee5\u770b\u51fa\uff1a\u5f53\u8bbe\u7f6e\u5d4c\u5957\u4e8b\u52a1\u7684\u4e8b\u52a1\u4f20\u64ad\u7ea7\u522b\u4e4b\u540e\uff0c\u7a0b\u5e8f\u6267\u884c\u4e86\u90e8\u5206\u4e8b\u52a1\u7684\u56de\u6eda<\/strong>\uff0c\u7528\u6237\u8868\u6dfb\u52a0\u7684\u4e8b\u52a1\u6ca1\u6709\u56de\u6eda\uff0c\u53ea\u662f\u65e5\u5fd7\u8868\u7684\u4e8b\u52a1\u56de\u6eda\u4e86\u3002<\/p>\n
3.\u52a0\u5165\u4e8b\u52a1 VS \u5d4c\u5957\u4e8b\u52a1<\/h2>\n
\u52a0\u5165\u4e8b\u52a1\uff08REQUIRED\uff09\u548c\u5d4c\u5957\u4e8b\u52a1\uff08NESTED\uff09\u90fd\u662f\u4e8b\u52a1\u4f20\u64ad\u673a\u5236\u7684\u4e24\u79cd\u4f20\u64ad\u7ea7\u522b\uff0c\u5982\u679c\u5f53\u524d\u4e0d\u5b58\u5728\u4e8b\u52a1\uff0c\u90a3\u4e48\u4e8c\u8005\u7684\u884c\u4e3a\u662f\u4e00\u6837\u7684\uff1b\u4f46\u5982\u679c\u5f53\u524d\u5b58\u5728\u4e8b\u52a1\uff0c\u90a3\u4e48\u52a0\u5165\u4e8b\u52a1\u7684\u4e8b\u52a1\u4f20\u64ad\u7ea7\u522b\u5728\u9047\u5230\u5f02\u5e38\u4e4b\u540e\uff0c\u4f1a\u5c06\u4e8b\u52a1\u5168\u90e8\u56de\u6eda\uff1b\u800c\u5d4c\u5957\u4e8b\u52a1\u5728\u9047\u5230\u5f02\u5e38\u65f6\uff0c\u53ea\u662f\u6267\u884c\u4e86\u90e8\u5206\u4e8b\u52a1\u7684\u56de\u6eda\u3002<\/strong><\/p>\n
4.\u5d4c\u5957\u4e8b\u52a1\u5b9e\u73b0\u539f\u7406<\/h2>\n
\u4e8b\u52a1\u5168\u90e8\u56de\u6eda\u5f88\u597d\u7406\u89e3\uff0c\u8fd9\u672c\u6765\u5c31\u662f\u4e8b\u52a1\u539f\u5b50\u6027\u7684\u4e00\u79cd\u4f53\u73b0\uff0c\u800c\u5d4c\u5957\u4e8b\u52a1\u4e2d\u7684\u90e8\u5206\u4e8b\u52a1\u56de\u6eda\u662f\u600e\u4e48\u5b9e\u73b0\u7684\u5462\uff1f<\/p>\n
\u5d4c\u5957\u4e8b\u52a1\u53ea\u6240\u4ee5\u80fd\u5b9e\u73b0\u90e8\u5206\u4e8b\u52a1\u7684\u56de\u6eda\uff0c\u662f\u56e0\u4e3a\u5728\u6570\u636e\u5e93\u4e2d\u5b58\u5728\u4e00\u4e2a\u4fdd\u5b58\u70b9\uff08savepoint\uff09\u7684\u6982\u5ff5\uff0c\u4ee5 MySQL \u4e3a\u4f8b\uff0c\u5d4c\u5957\u4e8b\u52a1\u76f8\u5f53\u4e8e\u65b0\u5efa\u4e86\u4e00\u4e2a\u4fdd\u5b58\u70b9\uff0c\u800c\u6eda\u56de\u65f6\u53ea\u56de\u6eda\u5230\u5f53\u524d\u4fdd\u5b58\u70b9\uff0c\u56e0\u6b64\u4e4b\u524d\u7684\u4e8b\u52a1\u662f\u4e0d\u53d7\u5f71\u54cd\u7684<\/strong>\uff0c\u8fd9\u4e00\u70b9\u53ef\u4ee5\u5728 MySQL \u7684\u5b98\u65b9\u6587\u6863\u6c47\u603b\u627e\u5230\u76f8\u5e94\u7684\u8d44\u6599\uff1ahttps:\/\/dev.mysql.com\/doc\/refman\/5.7\/en\/savepoint.html<\/a>
\"image.png\"
\u800c REQUIRED \u662f\u52a0\u5165\u5230\u5f53\u524d\u4e8b\u52a1\u4e2d\uff0c\u5e76\u6ca1\u6709\u521b\u5efa\u4e8b\u52a1\u7684\u4fdd\u5b58\u70b9\uff0c\u56e0\u6b64\u51fa\u73b0\u4e86\u56de\u6eda\u5c31\u662f\u6574\u4e2a\u4e8b\u52a1\u56de\u6eda<\/strong>\uff0c\u8fd9\u5c31\u662f\u5d4c\u5957\u4e8b\u52a1\u548c\u52a0\u5165\u4e8b\u52a1\u7684\u533a\u522b\u3002<\/p>\n
\u4fdd\u5b58\u70b9\u5c31\u50cf\u73a9\u901a\u5173\u6e38\u620f\u65f6\u7684\u201c\u6e38\u620f\u5b58\u6863\u201d\u4e00\u6837\uff0c\u5982\u679c\u8bbe\u7f6e\u4e86\u6e38\u620f\u5b58\u6863\uff0c\u90a3\u4e48\u5373\u4f7f\u5f53\u524d\u5173\u5361\u5931\u8d25\u4e86\uff0c\u4e5f\u80fd\u7ee7\u7eed\u4e0a\u4e00\u4e2a\u5b58\u6863\u70b9\u7ee7\u7eed\u73a9\uff0c\u800c\u4e0d\u662f\u4ece\u5934\u5f00\u59cb\u73a9\u6e38\u620f\u3002
\"image.png\"<\/p>\n
\u603b\u7ed3<\/h2>\n
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\u9762\u8bd5\u5408\u96c6\uff1ahttps:\/\/gitee.com\/mydb\/interview<\/a><\/p>\n<\/blockquote>\n
https:\/\/segmentfault.com\/a\/1190000042577888<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
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