{"id":2380,"date":"2022-03-19T17:33:38","date_gmt":"2022-03-19T09:33:38","guid":{"rendered":"https:\/\/www.zeroheart.xyz\/wordpress\/?p=2380"},"modified":"2022-03-19T17:33:38","modified_gmt":"2022-03-19T09:33:38","slug":"spring%e4%ba%8b%e5%8a%a1%e4%bc%a0%e6%92%ad","status":"publish","type":"post","link":"https:\/\/www.zeroheart.xyz\/wordpress\/?p=2380","title":{"rendered":"spring\u4e8b\u52a1\u4f20\u64ad"},"content":{"rendered":"\n<p>\u53c2\u8003\uff1a<a href=\"https:\/\/www.cnblogs.com\/renxiuxing\/p\/15395798.html\">Spring\u4e8b\u52a1\u4f20\u64ad\u884c\u4e3a\u8be6\u89e3\uff08\u6709\u573a\u666f\uff09 &#8211; \u660e\u53f6\u5e08\u5144\u3002 &#8211; \u535a\u5ba2\u56ed (cnblogs.com)<\/a><\/p>\n\n\n\n<p><strong>Propagation.REQUIRED<\/strong>\u662f\u4f5c\u4e3a\u9ed8\u8ba4\u7684\u4f20\u64ad\u6a21\u5f0f<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u4e8b\u52a1\u4f20\u64ad\u884c\u4e3a\u7c7b\u578b<\/th><th>\u8bf4\u660e<\/th><\/tr><\/thead><tbody><tr><td>PROPAGATION_REQUIRED<\/td><td>\u5982\u679c\u5f53\u524d\u6ca1\u6709\u4e8b\u52a1\uff0c\u5c31\u65b0\u5efa\u4e00\u4e2a\u4e8b\u52a1\uff0c\u5982\u679c\u5df2\u7ecf\u5b58\u5728\u4e00\u4e2a\u4e8b\u52a1\u4e2d\uff0c\u52a0\u5165\u5230\u8fd9\u4e2a\u4e8b\u52a1\u4e2d\u3002\u8fd9\u662f\u6700\u5e38\u89c1\u7684\u9009\u62e9\u3002<\/td><\/tr><tr><td>PROPAGATION_SUPPORTS<\/td><td>\u652f\u6301\u5f53\u524d\u4e8b\u52a1\uff0c\u5982\u679c\u5f53\u524d\u6ca1\u6709\u4e8b\u52a1\uff0c\u5c31\u4ee5\u975e\u4e8b\u52a1\u65b9\u5f0f\u6267\u884c\u3002<\/td><\/tr><tr><td>PROPAGATION_MANDATORY<\/td><td>\u4f7f\u7528\u5f53\u524d\u7684\u4e8b\u52a1\uff0c\u5982\u679c\u5f53\u524d\u6ca1\u6709\u4e8b\u52a1\uff0c\u5c31\u629b\u51fa\u5f02\u5e38\u3002<\/td><\/tr><tr><td>PROPAGATION_REQUIRES_NEW<\/td><td>\u65b0\u5efa\u4e8b\u52a1\uff0c\u5982\u679c\u5f53\u524d\u5b58\u5728\u4e8b\u52a1\uff0c\u628a\u5f53\u524d\u4e8b\u52a1\u6302\u8d77\u3002<\/td><\/tr><tr><td>PROPAGATION_NOT_SUPPORTED<\/td><td>\u4ee5\u975e\u4e8b\u52a1\u65b9\u5f0f\u6267\u884c\u64cd\u4f5c\uff0c\u5982\u679c\u5f53\u524d\u5b58\u5728\u4e8b\u52a1\uff0c\u5c31\u628a\u5f53\u524d\u4e8b\u52a1\u6302\u8d77\u3002<\/td><\/tr><tr><td>PROPAGATION_NEVER<\/td><td>\u4ee5\u975e\u4e8b\u52a1\u65b9\u5f0f\u6267\u884c\uff0c\u5982\u679c\u5f53\u524d\u5b58\u5728\u4e8b\u52a1\uff0c\u5219\u629b\u51fa\u5f02\u5e38\u3002<\/td><\/tr><tr><td>PROPAGATION_NESTED<\/td><td>\u5982\u679c\u5f53\u524d\u5b58\u5728\u4e8b\u52a1\uff0c\u5219\u5728\u5d4c\u5957\u4e8b\u52a1\u5185\u6267\u884c\u3002\u5982\u679c\u5f53\u524d\u6ca1\u6709\u4e8b\u52a1\uff0c\u5219\u6267\u884c\u4e0ePROPAGATION_REQUIRED\u7c7b\u4f3c\u7684\u64cd\u4f5c\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u5177\u4f53\u7684\u4e00\u4e9b\u6d4b\u8bd5\uff0c\u770b\u4e0a\u9762\u7684\u6587\u7ae0\u5427<\/p>\n\n\n\n<p>\u6211\u4eec\u62ff\u4e00\u4e9b\u7ed3\u8bba\u8fc7\u6765<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"4-requiredrequires_newnested\u5f02\u540c\">1.REQUIRED,REQUIRES_NEW,NESTED\u5f02\u540c<\/h2>\n\n\n\n<p><br><strong>NESTED\u548cREQUIRED\u4fee\u9970\u7684\u5185\u90e8\u65b9\u6cd5\u90fd\u5c5e\u4e8e\u5916\u56f4\u65b9\u6cd5\u4e8b\u52a1\uff0c\u5982\u679c\u5916\u56f4\u65b9\u6cd5\u629b\u51fa\u5f02\u5e38\uff0c\u8fd9\u4e24\u79cd\u65b9\u6cd5\u7684\u4e8b\u52a1\u90fd\u4f1a\u88ab\u56de\u6eda\u3002\u4f46\u662fREQUIRED\u662f\u52a0\u5165\u5916\u56f4\u65b9\u6cd5\u4e8b\u52a1\uff0c\u6240\u4ee5\u548c\u5916\u56f4\u4e8b\u52a1\u540c\u5c5e\u4e8e\u4e00\u4e2a\u4e8b\u52a1\uff0c\u4e00\u65e6REQUIRED\u4e8b\u52a1\u629b\u51fa\u5f02\u5e38\u88ab\u56de\u6eda\uff0c\u5916\u56f4\u65b9\u6cd5\u4e8b\u52a1\u4e5f\u5c06\u88ab\u56de\u6eda\u3002\u800cNESTED\u662f\u5916\u56f4\u65b9\u6cd5\u7684\u5b50\u4e8b\u52a1\uff0c\u6709\u5355\u72ec\u7684\u4fdd\u5b58\u70b9\uff0c\u6240\u4ee5NESTED\u65b9\u6cd5\u629b\u51fa\u5f02\u5e38\u88ab\u56de\u6eda\uff0c\u4e0d\u4f1a\u5f71\u54cd\u5230\u5916\u56f4\u65b9\u6cd5\u7684\u4e8b\u52a1\u3002<\/strong><\/p>\n\n\n\n<p><br><strong>NESTED\u548cREQUIRES_NEW\u90fd\u53ef\u4ee5\u505a\u5230\u5185\u90e8\u65b9\u6cd5\u4e8b\u52a1\u56de\u6eda\u800c\u4e0d\u5f71\u54cd\u5916\u56f4\u65b9\u6cd5\u4e8b\u52a1\u3002\u4f46\u662f\u56e0\u4e3aNESTED\u662f\u5d4c\u5957\u4e8b\u52a1\uff0c\u6240\u4ee5\u5916\u56f4\u65b9\u6cd5\u56de\u6eda\u4e4b\u540e\uff0c\u4f5c\u4e3a\u5916\u56f4\u65b9\u6cd5\u4e8b\u52a1\u7684\u5b50\u4e8b\u52a1\u4e5f\u4f1a\u88ab\u56de\u6eda\u3002\u800cREQUIRES_NEW\u662f\u901a\u8fc7\u5f00\u542f\u65b0\u7684\u4e8b\u52a1\u5b9e\u73b0\u7684\uff0c\u5185\u90e8\u4e8b\u52a1\u548c\u5916\u56f4\u4e8b\u52a1\u662f\u4e24\u4e2a\u4e8b\u52a1\uff0c\u5916\u56f4\u4e8b\u52a1\u56de\u6eda\u4e0d\u4f1a\u5f71\u54cd\u5185\u90e8\u4e8b\u52a1\u3002<\/strong><\/p>\n\n\n\n<p>2.\u4e8b\u52a1\u5931\u6548\u7684\u51e0\u4e2a\u573a\u666f<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">1\u3001\u6570\u636e\u5e93\u5f15\u64ce\u4e0d\u652f\u6301\u4e8b\u52a1\n\u8fd9\u91cc\u4ee5 MySQL \u4e3a\u4f8b\uff0c\u5176 MyISAM \u5f15\u64ce\u662f\u4e0d\u652f\u6301\u4e8b\u52a1\u64cd\u4f5c\u7684\uff0cInnoDB \u624d\u662f\u652f\u6301\u4e8b\u52a1\u7684\u5f15\u64ce\uff0c\u4e00\u822c\u8981\u652f\u6301\u4e8b\u52a1\u90fd\u4f1a\u4f7f\u7528 InnoDB\u3002\n\n\u6839\u636e MySQL \u7684\u5b98\u65b9\u6587\u6863\uff1a\n\nhttps:\/\/dev.mysql.com\/doc\/refman\/5.5\/en\/storage-engine-setting.html\n\n\u4ece MySQL 5.5.5 \u5f00\u59cb\u7684\u9ed8\u8ba4\u5b58\u50a8\u5f15\u64ce\u662f\uff1aInnoDB\uff0c\u4e4b\u524d\u9ed8\u8ba4\u7684\u90fd\u662f\uff1aMyISAM\uff0c\u6240\u4ee5\u8fd9\u70b9\u8981\u503c\u5f97\u6ce8\u610f\uff0c\u5e95\u5c42\u5f15\u64ce\u4e0d\u652f\u6301\u4e8b\u52a1\u518d\u600e\u4e48\u641e\u90fd\u662f\u767d\u642d\u3002\n\n\n2\u3001\u6ca1\u6709\u88ab Spring \u7ba1\u7406\n\u5982\u4e0b\u9762\u4f8b\u5b50\u6240\u793a\uff1a\n\n\/\/ @Service\npublic class OrderServiceImpl implements OrderService {\n\n    @Transactional\n    public void updateOrder(Order order) {\n        \/\/ update order\n    }\n    \n}\n\u5982\u679c\u6b64\u65f6\u628a @Service \u6ce8\u89e3\u6ce8\u91ca\u6389\uff0c\u8fd9\u4e2a\u7c7b\u5c31\u4e0d\u4f1a\u88ab\u52a0\u8f7d\u6210\u4e00\u4e2a Bean\uff0c\u90a3\u8fd9\u4e2a\u7c7b\u5c31\u4e0d\u4f1a\u88ab Spring \u7ba1\u7406\u4e86\uff0c\u4e8b\u52a1\u81ea\u7136\u5c31\u5931\u6548\u4e86\u3002\n\n\n3\u3001\u65b9\u6cd5\u4e0d\u662f public \u7684\n\u4ee5\u4e0b\u6765\u81ea Spring \u5b98\u65b9\u6587\u6863\uff1a\n\nWhen using proxies, you should apply the @Transactional annotation only to methods with public visibility. If you do annotate protected, private or package-visible methods with the @Transactional annotation, no error is raised, but the annotated method does not exhibit the configured transactional settings. Consider the use of AspectJ (see below) if you need to annotate non-public methods.\n\n\u5927\u6982\u610f\u601d\u5c31\u662f @Transactional \u53ea\u80fd\u7528\u4e8e public \u7684\u65b9\u6cd5\u4e0a\uff0c\u5426\u5219\u4e8b\u52a1\u4f1a\u5931\u6548\uff0c\u5982\u679c\u8981\u7528\u5728\u975e public \u65b9\u6cd5\u4e0a\uff0c\u53ef\u4ee5\u5f00\u542f AspectJ \u4ee3\u7406\u6a21\u5f0f\u3002\n\n\n4\u3001\u81ea\u8eab\u8c03\u7528\u95ee\u9898\n\u6765\u770b\u4e24\u4e2a\u793a\u4f8b\uff1a\n\n@Service\npublic class OrderServiceImpl implements OrderService {\n\n    public void update(Order order) {\n        updateOrder(order);\n    }\n    \n    @Transactional\n    public void updateOrder(Order order) {\n        \/\/ update order\n    }\n    \n}\nupdate\u65b9\u6cd5\u4e0a\u9762\u6ca1\u6709\u52a0 @Transactional \u6ce8\u89e3\uff0c\u8c03\u7528\u6709 @Transactional \u6ce8\u89e3\u7684 updateOrder \u65b9\u6cd5\uff0cupdateOrder \u65b9\u6cd5\u4e0a\u7684\u4e8b\u52a1\u7ba1\u7528\u5417\uff1f\n\n\u518d\u6765\u770b\u4e0b\u9762\u8fd9\u4e2a\u4f8b\u5b50\uff1a\n\n@Service\npublic class OrderServiceImpl implements OrderService {\n\n    @Transactional\n    public void update(Order order) {\n        updateOrder(order);\n    }\n    \n    @Transactional(propagation = Propagation.REQUIRES_NEW)\n    public void updateOrder(Order order) {\n        \/\/ update order\n    }\n    \n}\n\u8fd9\u6b21\u5728 update \u65b9\u6cd5\u4e0a\u52a0\u4e86 @Transactional\uff0cupdateOrder \u52a0\u4e86 REQUIRES_NEW \u65b0\u5f00\u542f\u4e00\u4e2a\u4e8b\u52a1\uff0c\u90a3\u4e48\u65b0\u5f00\u7684\u4e8b\u52a1\u7ba1\u7528\u4e48\uff1f\n\n\u8fd9\u4e24\u4e2a\u4f8b\u5b50\u7684\u7b54\u6848\u662f\uff1a\u4e0d\u7ba1\u7528\uff01\n\n\u56e0\u4e3a\u5b83\u4eec\u53d1\u751f\u4e86\u81ea\u8eab\u8c03\u7528\uff0c\u5c31\u8c03\u8be5\u7c7b\u81ea\u5df1\u7684\u65b9\u6cd5\uff0c\u800c\u6ca1\u6709\u7ecf\u8fc7 Spring \u7684\u4ee3\u7406\u7c7b\uff0c\u9ed8\u8ba4\u53ea\u6709\u5728\u5916\u90e8\u8c03\u7528\u4e8b\u52a1\u624d\u4f1a\u751f\u6548\uff0c\u8fd9\u4e5f\u662f\u8001\u751f\u5e38\u8c08\u7684\u7ecf\u5178\u95ee\u9898\u4e86\u3002\n\n\u8fd9\u4e2a\u7684\u89e3\u51b3\u65b9\u6848\u4e4b\u4e00\u5c31\u662f\u5728\u7684\u7c7b\u4e2d\u6ce8\u5165\u81ea\u5df1\uff0c\u7528\u6ce8\u5165\u7684\u5bf9\u8c61\u518d\u8c03\u7528\u53e6\u5916\u4e00\u4e2a\u65b9\u6cd5\uff0c\u8fd9\u4e2a\u4e0d\u592a\u4f18\u96c5\uff0c\u53e6\u5916\u4e00\u4e2a\u53ef\u884c\u7684\u65b9\u6848\u53ef\u4ee5\u53c2\u8003\u300aSpring \u5982\u4f55\u5728\u4e00\u4e2a\u4e8b\u52a1\u4e2d\u5f00\u542f\u53e6\u4e00\u4e2a\u4e8b\u52a1\uff1f\u300b\u8fd9\u7bc7\u6587\u7ae0\u3002\n\n\n5\u3001\u6570\u636e\u6e90\u6ca1\u6709\u914d\u7f6e\u4e8b\u52a1\u7ba1\u7406\u5668\n@Bean\npublic PlatformTransactionManager transactionManager(DataSource dataSource) {\n    return new DataSourceTransactionManager(dataSource);\n}\n\u5982\u4e0a\u9762\u6240\u793a\uff0c\u5f53\u524d\u6570\u636e\u6e90\u82e5\u6ca1\u6709\u914d\u7f6e\u4e8b\u52a1\u7ba1\u7406\u5668\uff0c\u90a3\u4e5f\u662f\u767d\u642d\uff01\n\n\n\n6\u3001\u4e0d\u652f\u6301\u4e8b\u52a1\n\u6765\u770b\u4e0b\u9762\u8fd9\u4e2a\u4f8b\u5b50\uff1a\n\n@Service\npublic class OrderServiceImpl implements OrderService {\n\n    @Transactional\n    public void update(Order order) {\n        updateOrder(order);\n    }\n    \n    @Transactional(propagation = Propagation.NOT_SUPPORTED)\n    public void updateOrder(Order order) {\n        \/\/ update order\n    }\n    \n}\nPropagation.NOT_SUPPORTED\uff1a \u8868\u793a\u4e0d\u4ee5\u4e8b\u52a1\u8fd0\u884c\uff0c\u5f53\u524d\u82e5\u5b58\u5728\u4e8b\u52a1\u5219\u6302\u8d77\uff0c\u8be6\u7ec6\u7684\u53ef\u4ee5\u53c2\u8003\u300a\u4e8b\u52a1\u9694\u79bb\u7ea7\u522b\u548c\u4f20\u64ad\u673a\u5236\u300b\u8fd9\u7bc7\u6587\u7ae0\u3002\n\n\u90fd\u4e3b\u52a8\u4e0d\u652f\u6301\u4ee5\u4e8b\u52a1\u65b9\u5f0f\u8fd0\u884c\u4e86\uff0c\u90a3\u4e8b\u52a1\u751f\u6548\u4e5f\u662f\u767d\u642d\uff01\n\n\n\n7\u3001\u5f02\u5e38\u88ab\u5403\u4e86\n\u8fd9\u4e2a\u4e5f\u662f\u51fa\u73b0\u6bd4\u8f83\u591a\u7684\u573a\u666f\uff1a\n\n\/\/ @Service\npublic class OrderServiceImpl implements OrderService {\n\n    @Transactional\n    public void updateOrder(Order order) {\n        try {\n            \/\/ update order\n        } catch {\n            \n        }\n    }\n    \n}\n\u628a\u5f02\u5e38\u5403\u4e86\uff0c\u7136\u540e\u53c8\u4e0d\u629b\u51fa\u6765\uff0c\u4e8b\u52a1\u600e\u4e48\u56de\u6eda\u5427\uff01\n\n\n\n8\u3001\u5f02\u5e38\u7c7b\u578b\u9519\u8bef\n\u4e0a\u9762\u7684\u4f8b\u5b50\u518d\u629b\u51fa\u4e00\u4e2a\u5f02\u5e38\uff1a\n\n\/\/ @Service\npublic class OrderServiceImpl implements OrderService {\n\n    @Transactional\n    public void updateOrder(Order order) {\n        try {\n            \/\/ update order\n        } catch {\n            throw new Exception(\"\u66f4\u65b0\u9519\u8bef\");\n        }\n    }\n    \n}\n\u8fd9\u6837\u4e8b\u52a1\u4e5f\u662f\u4e0d\u751f\u6548\u7684\uff0c\u56e0\u4e3a\u9ed8\u8ba4\u56de\u6eda\u7684\u662f\uff1aRuntimeException\uff0c\u5982\u679c\u4f60\u60f3\u89e6\u53d1\u5176\u4ed6\u5f02\u5e38\u7684\u56de\u6eda\uff0c\u9700\u8981\u5728\u6ce8\u89e3\u4e0a\u914d\u7f6e\u4e00\u4e0b\uff0c\u5982\uff1a\n\n@Transactional(rollbackFor = Exception.class)\n\u8fd9\u4e2a\u914d\u7f6e\u4ec5\u9650\u4e8e Throwable \u5f02\u5e38\u7c7b\u53ca\u5176\u5b50\u7c7b\u3002\n\n\n\n\n<\/pre>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u53c2\u8003\uff1aSpring\u4e8b\u52a1\u4f20\u64ad\u884c\u4e3a\u8be6\u89e3\uff08\u6709\u573a\u666f\uff09 &#8211; \u660e\u53f6\u5e08\u5144\u3002 &#8211; \u535a\u5ba2\u56ed (cnblo [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[54,154],"_links":{"self":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/2380"}],"collection":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2380"}],"version-history":[{"count":21,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/2380\/revisions"}],"predecessor-version":[{"id":2401,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/2380\/revisions\/2401"}],"wp:attachment":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2380"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2380"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2380"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}