{"id":1996,"date":"2021-02-24T11:17:16","date_gmt":"2021-02-24T03:17:16","guid":{"rendered":"https:\/\/www.yusian.com\/blog\/?p=1996"},"modified":"2021-02-24T11:17:16","modified_gmt":"2021-02-24T03:17:16","slug":"%e7%ba%af%e6%b3%a8%e8%a7%a3%e7%9a%84aop%e7%bc%96%e7%a8%8b%e7%ae%80%e5%8d%95%e7%a4%ba%e4%be%8b","status":"publish","type":"post","link":"https:\/\/www.yusian.com\/blog\/java\/2021\/02\/24\/1117161996.html","title":{"rendered":"\u7eaf\u6ce8\u89e3\u7684Aop\u7f16\u7a0b\u7b80\u5355\u793a\u4f8b"},"content":{"rendered":"<h1>1\u3001\u539f\u59cb\u5bf9\u8c61<\/h1>\n<blockquote><p>\n  UserServiceImpl.java\n<\/p><\/blockquote>\n<pre><code class=\"language-java line-numbers\">package com.yusian.service;\n\nimport org.springframework.stereotype.Service;\n\n@Service\npublic class UserServiceImpl implements UserService{\n\n    @Override\n    public void login() {\n        System.out.println(\"UserServiceImpl.login\");\n    }\n}\n\n<\/code><\/pre>\n<h1>2\u3001\u5207\u9762\u7c7b<\/h1>\n<p>\u6ce8\u610f\u4e8b\u9879\uff1a<\/p>\n<ul>\n<li>@Aspect\u5b9a\u4e49\u5f53\u524d\u7c7b\u4e3a\u5207\u9762\u7c7b<\/li>\n<li>@Around\u5b9a\u4e49\u5f53\u524d\u65b9\u6cd5\u4e3a\u4ee3\u7406\u65b9\u6cd5<\/li>\n<li>@Component\u4f7fSpring\u81ea\u52a8\u521b\u5efa\u5f53\u524d\u7c7b\u7684\u5b9e\u4f8b\u5bf9\u8c61<\/li>\n<\/ul>\n<blockquote><p>\n  MyAspect.java\n<\/p><\/blockquote>\n<pre><code class=\"language-java line-numbers\">package com.yusian.aspect;\n\nimport org.aspectj.lang.ProceedingJoinPoint;\nimport org.aspectj.lang.annotation.Around;\nimport org.aspectj.lang.annotation.Aspect;\nimport org.springframework.stereotype.Component;\n\n@Aspect\n@Component\npublic class MyAspect {\n\n    @Around(\"execution(* *(..))\")\n    public Object around(ProceedingJoinPoint joinPoint) throws Throwable{\n        System.out.println(\"before....\");\n        Object ret = joinPoint.proceed();\n        System.out.println(\"after.....\");\n        return ret;\n    }\n}\n\n<\/code><\/pre>\n<h1>3\u3001\u914d\u7f6e\u7c7b<\/h1>\n<p>\u6ce8\u610f\u4e8b\u9879\uff1a<\/p>\n<ul>\n<li>@Configuration\u5b9a\u4e49\u5f53\u524d\u7c7b\u4e3aSpring\u7684\u914d\u7f6e\u7c7b<\/li>\n<li>@EnableAspectJAutoProxy\u5f00\u542fAop\u81ea\u52a8\u52a8\u6001\u4ee3\u7406<\/li>\n<li>@ComponentScan\u626b\u63cf\u81ea\u52a8\u52a0\u8f7d\u7684bean\u5bf9\u8c61<\/li>\n<\/ul>\n<blockquote><p>\n  AppConfig.java\n<\/p><\/blockquote>\n<pre><code class=\"language-java line-numbers\">package com.yusian.config;\n\nimport org.springframework.context.annotation.ComponentScan;\nimport org.springframework.context.annotation.Configuration;\nimport org.springframework.context.annotation.EnableAspectJAutoProxy;\n\n@Configuration\n@EnableAspectJAutoProxy\n@ComponentScan({\"com.yusian.service\", \"com.yusian.aspect\"})\npublic class AppConfig {\n}\n\n<\/code><\/pre>\n<h1>4\u3001\u6d4b\u8bd5<\/h1>\n<pre><code class=\"language-java line-numbers\">@Test\npublic void aopTest() {\n    ApplicationContext ctx = new AnnotationConfigApplicationContext(AppConfig.class);\n    UserService userService = (UserService) ctx.getBean(\"userServiceImpl\");\n    userService.login();\n}\n<\/code><\/pre>\n<p>\u6267\u884c\u7ed3\u679c\uff1a<\/p>\n<pre><code class=\"language-log line-numbers\">before....\nUserServiceImpl.login\nafter.....\n\nProcess finished with exit code 0\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>1\u3001\u539f\u59cb\u5bf9\u8c61 UserServiceImpl.java package com.yusian.service; import org.springframework.stereotype.Service; @Service public class UserServiceImpl implements UserService{ @Override public void login() { System.out.println(&#8220;UserServiceImpl.login&#8221;); } } 2\u3001\u5207\u9762\u7c7b \u6ce8\u610f\u4e8b\u9879\uff1a @Aspect\u5b9a\u4e49\u5f53\u524d\u7c7b\u4e3a\u5207\u9762\u7c7b @Around\u5b9a\u4e49\u5f53\u524d\u65b9\u6cd5\u4e3a\u4ee3\u7406\u65b9\u6cd5 @Component\u4f7fSpring\u81ea\u52a8\u521b\u5efa\u5f53\u524d\u7c7b\u7684\u5b9e\u4f8b\u5bf9\u8c61 MyAspect.java package com.yusian.aspect; import org.aspectj.lang.ProceedingJoinPoint; import org.aspectj.lang.annotation.Around; import org.aspectj.lang.annotation.Aspect; import org.springframework.stereotype.Component; @Aspect @Component public class MyAspect { @Around(&#8220;execution(* *(..))&#8221;) public Object around(ProceedingJoinPoint joinPoint) throws Throwable{ System.out.println(&#8220;before&#8230;.&#8221;); Object ret = joinPoint.proceed(); [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35],"tags":[349,347],"class_list":["post-1996","post","type-post","status-publish","format-standard","hentry","category-java","tag-aop","tag-spring"],"_links":{"self":[{"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/posts\/1996","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/comments?post=1996"}],"version-history":[{"count":0,"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/posts\/1996\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/media?parent=1996"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/categories?post=1996"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/tags?post=1996"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}