{"id":11827,"date":"2023-11-28T22:35:21","date_gmt":"2023-11-28T14:35:21","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=11827"},"modified":"2023-12-11T14:29:56","modified_gmt":"2023-12-11T06:29:56","slug":"spring-zhonga0p-san-zhong-pei-zhi-fang-shi-ji-yuan","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/spring-zhonga0p-san-zhong-pei-zhi-fang-shi-ji-yuan\/","title":{"rendered":"Spring\u4e2dA0P\u4e09\u79cd\u914d\u7f6e\u65b9\u5f0f\u53ca\u539f\u7406\u4e86\u89e3\u5417\uff1f"},"content":{"rendered":"<p>AOP\uff08Aspect-Oriented Programming\uff0c\u9762\u5411\u5207\u9762\u7f16\u7a0b\uff09\u662fSpring\u6846\u67b6\u4e2d\u7684\u4e00\u4e2a\u91cd\u8981\u7279\u6027\uff0c\u7528\u4e8e\u5904\u7406\u6a2a\u5207\u5173\u6ce8\u70b9\uff08cross-cutting concerns\uff09\u5e76\u5c06\u5176\u6a21\u5757\u5316\u3002\u5728Spring\u4e2d\uff0cAOP\u7684\u914d\u7f6e\u65b9\u5f0f\u4e3b\u8981\u6709\u4e09\u79cd\uff1aXML\u914d\u7f6e\u3001\u6ce8\u89e3\u914d\u7f6e\u548cJava\u914d\u7f6e\u3002\u4ee5\u4e0b\u662f\u8fd9\u4e09\u79cd\u914d\u7f6e\u65b9\u5f0f\u7684\u7b80\u8981\u4ecb\u7ecd\u548c\u539f\u7406\uff1a<\/p>\n<h3><a id=\"1-xml%E9%85%8D%E7%BD%AE%E6%96%B9%E5%BC%8F%EF%BC%9A\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a>1. XML\u914d\u7f6e\u65b9\u5f0f\uff1a<\/h3>\n<p>\u5728XML\u4e2d\u914d\u7f6eAOP\u4e3b\u8981\u6d89\u53ca\u4ee5\u4e0b\u51e0\u4e2a\u5143\u7d20\uff1a<\/p>\n<ul>\n<li><code>&lt;aop:config&gt;<\/code>\uff1a\u5b9a\u4e49AOP\u914d\u7f6e\u7684\u6839\u5143\u7d20\u3002<\/li>\n<li><code>&lt;aop:aspect&gt;<\/code>\uff1a\u5b9a\u4e49\u4e00\u4e2a\u5207\u9762\u3002<\/li>\n<li><code>&lt;aop:before&gt;<\/code>\u3001<code>&lt;aop:after&gt;<\/code>\u3001<code>&lt;aop:around&gt;<\/code>\u7b49\uff1a\u5b9a\u4e49\u901a\u77e5\uff08advice\uff09\u3002<\/li>\n<li><code>&lt;aop:pointcut&gt;<\/code>\uff1a\u5b9a\u4e49\u5207\u70b9\uff0c\u6307\u5b9a\u5728\u54ea\u4e9b\u8fde\u63a5\u70b9\u4e0a\u5e94\u7528\u901a\u77e5\u3002<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre><code class=\"language-xml\">&lt;aop:config&gt;\n    &lt;aop:aspect ref=&quot;myAspect&quot;&gt;\n        &lt;aop:pointcut id=&quot;myPointcut&quot; expression=&quot;execution(* com.example.service.*.*(..))&quot; \/&gt;\n        &lt;aop:before method=&quot;beforeAdvice&quot; pointcut-ref=&quot;myPointcut&quot; \/&gt;\n    &lt;\/aop:aspect&gt;\n&lt;\/aop:config&gt;\n<\/code><\/pre>\n<h3><a id=\"2%E6%B3%A8%E8%A7%A3%E9%85%8D%E7%BD%AE%E6%96%B9%E5%BC%8F%EF%BC%9A\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a>2. \u6ce8\u89e3\u914d\u7f6e\u65b9\u5f0f\uff1a<\/h3>\n<p>\u5728\u4f7f\u7528\u6ce8\u89e3\u914d\u7f6eAOP\u65f6\uff0c\u4e3b\u8981\u6d89\u53ca\u4ee5\u4e0b\u6ce8\u89e3\uff1a<\/p>\n<ul>\n<li><code>@Aspect<\/code>\uff1a\u6807\u8bc6\u4e00\u4e2a\u7c7b\u4e3a\u5207\u9762\u3002<\/li>\n<li><code>@Before<\/code>\u3001<code>@After<\/code>\u3001<code>@Around<\/code>\u7b49\uff1a\u5b9a\u4e49\u901a\u77e5\u3002<\/li>\n<li><code>@Pointcut<\/code>\uff1a\u5b9a\u4e49\u5207\u70b9\u3002<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre><code class=\"language-java\">@Aspect\n@Component\npublic class MyAspect {\n\n    @Pointcut(&quot;execution(* com.example.service.*.*(..))&quot;)\n    private void myPointcut() {}\n\n    @Before(&quot;myPointcut()&quot;)\n    public void beforeAdvice() {\n        \/\/ \u524d\u7f6e\u901a\u77e5\u7684\u5b9e\u73b0\n    }\n}\n<\/code><\/pre>\n<h3><a id=\"3-java%E9%85%8D%E7%BD%AE%E6%96%B9%E5%BC%8F%EF%BC%9A\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a>3. Java\u914d\u7f6e\u65b9\u5f0f\uff1a<\/h3>\n<p>\u5728Java\u914d\u7f6e\u4e2d\uff0c\u4e3b\u8981\u4f7f\u7528<code>@EnableAspectJAutoProxy<\/code>\u6ce8\u89e3\u6765\u542f\u7528AOP\uff0c\u5e76\u4f7f\u7528<code>@Aspect<\/code>\u6ce8\u89e3\u5b9a\u4e49\u5207\u9762\u3002<\/p>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre><code class=\"language-java\">@Configuration\n@EnableAspectJAutoProxy\npublic class AppConfig {\n\n    @Bean\n    public MyAspect myAspect() {\n        return new MyAspect();\n    }\n}\n<\/code><\/pre>\n<pre><code class=\"language-java\">@Aspect\n@Component\npublic class MyAspect {\n\n    @Pointcut(&quot;execution(* com.example.service.*.*(..))&quot;)\n    private void myPointcut() {}\n\n    @Before(&quot;myPointcut()&quot;)\n    public void beforeAdvice() {\n        \/\/ \u524d\u7f6e\u901a\u77e5\u7684\u5b9e\u73b0\n    }\n}\n<\/code><\/pre>\n<h3><a id=\"aop%E5%8E%9F%E7%90%86%EF%BC%9A\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a>AOP\u539f\u7406\uff1a<\/h3>\n<p>Spring AOP\u7684\u539f\u7406\u4e3b\u8981\u57fa\u4e8e\u4ee3\u7406\u6a21\u5f0f\u548c\u52a8\u6001\u4ee3\u7406\u3002\u5f53\u4e00\u4e2aBean\u88abAOP\u4ee3\u7406\u65f6\uff0cSpring\u5728\u8fd0\u884c\u65f6\u521b\u5efa\u4e00\u4e2a\u4ee3\u7406\u5bf9\u8c61\uff0c\u8be5\u4ee3\u7406\u5bf9\u8c61\u5305\u88c5\u4e86\u539f\u59cbBean\uff0c\u5e76\u7ec7\u5165\u4e86\u5207\u9762\u5b9a\u4e49\u7684\u901a\u77e5\u3002\u4ee3\u7406\u5bf9\u8c61\u8d1f\u8d23\u62e6\u622a\u65b9\u6cd5\u8c03\u7528\uff0c\u5e76\u5728\u8c03\u7528\u524d\u540e\u6267\u884c\u901a\u77e5\u903b\u8f91\u3002<\/p>\n<p>\u4ee3\u7406\u6a21\u5f0f\u6709\u4e24\u79cd\u5b9e\u73b0\u65b9\u5f0f\uff1aJDK\u52a8\u6001\u4ee3\u7406\u548cCGLIB\u4ee3\u7406\u3002Spring\u6839\u636e\u76ee\u6807Bean\u662f\u5426\u5b9e\u73b0\u4e86\u63a5\u53e3\u6765\u9009\u62e9\u4f7f\u7528\u54ea\u4e00\u79cd\u4ee3\u7406\u65b9\u5f0f\u3002\u5982\u679c\u5b9e\u73b0\u4e86\u63a5\u53e3\uff0c\u5219\u4f7f\u7528JDK\u52a8\u6001\u4ee3\u7406\uff1b\u5982\u679c\u6ca1\u6709\u5b9e\u73b0\u63a5\u53e3\uff0c\u5219\u4f7f\u7528CGLIB\u4ee3\u7406\u3002<\/p>\n<p>AOP\u7684\u6838\u5fc3\u6982\u5ff5\u5305\u62ec\u5207\u9762\uff08Aspect\uff09\u3001\u8fde\u63a5\u70b9\uff08Join Point\uff09\u3001\u901a\u77e5\uff08Advice\uff09\u3001\u5207\u70b9\uff08Pointcut\uff09\u7b49\u3002\u5207\u9762\u5b9a\u4e49\u4e86\u6a2a\u5207\u903b\u8f91\uff0c\u901a\u77e5\u5b9a\u4e49\u4e86\u5728\u4f55\u65f6\u3001\u4f55\u5730\u6267\u884c\u6a2a\u5207\u903b\u8f91\uff0c\u5207\u70b9\u5b9a\u4e49\u4e86\u5728\u5e94\u7528\u7a0b\u5e8f\u4e2d\u7684\u5177\u4f53\u4f4d\u7f6e\u3002\u8fd9\u4e9b\u6982\u5ff5\u5728AOP\u7684\u4e0d\u540c\u914d\u7f6e\u65b9\u5f0f\u4e2d\u90fd\u6709\u76f8\u5e94\u7684\u4f53\u73b0\u3002<\/p>\n<p>\u603b\u4f53\u6765\u8bf4\uff0cAOP\u901a\u8fc7\u52a8\u6001\u4ee3\u7406\u548c\u9762\u5411\u5207\u9762\u7684\u914d\u7f6e\uff0c\u5b9e\u73b0\u4e86\u5bf9\u6a2a\u5207\u5173\u6ce8\u70b9\u7684\u6a21\u5757\u5316\u5904\u7406\uff0c\u63d0\u9ad8\u4e86\u4ee3\u7801\u7684\u53ef\u7ef4\u62a4\u6027\u548c\u53ef\u8bfb\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>AOP\uff08Aspect-Oriented Programming\uff0c\u9762\u5411\u5207\u9762\u7f16\u7a0b\uff09\u662fSpring\u6846\u67b6\u4e2d\u7684\u4e00\u4e2a\u91cd\u8981\u7279 [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[121],"tags":[],"class_list":["post-11827","post","type-post","status-publish","format-standard","hentry","category-spring"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/11827","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=11827"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/11827\/revisions"}],"predecessor-version":[{"id":37189,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/11827\/revisions\/37189"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=11827"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=11827"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=11827"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}