{"id":11763,"date":"2023-11-28T22:33:21","date_gmt":"2023-11-28T14:33:21","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=11763"},"modified":"2023-12-11T14:08:58","modified_gmt":"2023-12-11T06:08:58","slug":"spring-zhongcomponent-controller-repository-servic","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/spring-zhongcomponent-controller-repository-servic\/","title":{"rendered":"Spring\u4e2d@Component, @Controller, @Repository, @Service\u6709\u4f55\u533a\u522b\uff1f"},"content":{"rendered":"<p><code>@Component<\/code>\u3001<code>@Controller<\/code>\u3001<code>@Repository<\/code>\u3001<code>@Service<\/code> \u90fd\u662f Spring \u6846\u67b6\u4e2d\u7528\u4e8e\u6807\u8bc6\u548c\u6ce8\u518cBean\u7684\u6ce8\u89e3\uff0c\u5b83\u4eec\u90fd\u662f\u7531 <code>@Component<\/code> 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\/\/ ...\n}\n<\/code><\/pre>\n<\/li>\n<li>\n<strong><code>@Repository<\/code>\uff1a<\/strong><\/p>\n<ul>\n<li>\u7528\u4e8e\u6807\u8bc6\u6570\u636e\u8bbf\u95ee\u5c42\uff08DAO\uff09\u7684Bean\u3002\u901a\u5e38\u4e0e Spring \u7684\u6570\u636e\u8bbf\u95ee\u5f02\u5e38\u8f6c\u6362\uff08DataAccessException translation\uff09\u4e00\u8d77\u4f7f\u7528\uff0c\u5c06\u6570\u636e\u5e93\u8bbf\u95ee\u5f02\u5e38\u8f6c\u6362\u4e3a Spring \u7684\u6570\u636e\u8bbf\u95ee\u5f02\u5e38\u3002<\/li>\n<\/ul>\n<pre><code class=\"language-java\">@Repository\npublic class MyRepository {\n    \/\/ ...\n}\n<\/code><\/pre>\n<\/li>\n<li>\n<strong><code>@Service<\/code>\uff1a<\/strong><\/p>\n<ul>\n<li>\u7528\u4e8e\u6807\u8bc6\u670d\u52a1\u5c42\u7684Bean\uff0c\u901a\u5e38\u7528\u4e8e\u6807\u8bc6\u4e1a\u52a1\u903b\u8f91\u7684\u7ec4\u4ef6\u3002<\/li>\n<\/ul>\n<pre><code class=\"language-java\">@Service\npublic class MyService {\n    \/\/ 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Spring \u6846 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