{"id":302,"date":"2021-01-22T06:34:34","date_gmt":"2021-01-22T06:34:34","guid":{"rendered":"http:\/\/robinluo.top\/?p=302"},"modified":"2021-01-22T06:39:48","modified_gmt":"2021-01-22T06:39:48","slug":"spring-aop","status":"publish","type":"post","link":"https:\/\/robinluo.top\/?p=302","title":{"rendered":"spring AOP"},"content":{"rendered":"\n<p>\u5207\u9762\u8bed\u6cd5<\/p>\n\n\n\n<p>execution<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>execution\u662f\u4e00\u79cd\u4f7f\u7528\u9891\u7387\u6bd4\u8f83\u9ad8\u6bd4\u8f83\u4e3b\u8981\u7684\u4e00\u79cd\u5207\u70b9\u6307\u793a\u7b26\uff0c\u7528\u6765\u5339\u914d\u65b9\u6cd5\u7b7e\u540d\uff0c\u65b9\u6cd5\u7b7e\u540d\u4f7f\u7528\u5168\u9650\u5b9a\u540d\uff0c\u5305\u62ec\u8bbf\u95ee\u4fee\u9970\u7b26\uff08public\/private\/protected\uff09\u3001\u8fd4\u56de\u7c7b\u578b\uff0c\u5305\u540d\u3001\u7c7b\u540d\u3001\u65b9\u6cd5\u540d\u3001\u53c2\u6570\uff0c\u5176\u4e2d\u8fd4\u56de\u7c7b\u578b\uff0c\u5305\u540d\uff0c\u7c7b\u540d\uff0c\u65b9\u6cd5\uff0c\u53c2\u6570\u662f\u5fc5\u987b\u7684\uff0c\u5982\u4e0b\u9762\u4ee3\u7801\u7247\u6bb5\u6240\u793a\uff1a\r\n\r\n@Pointcut(\"execution(public String org.baeldung.dao.FooDao.findById(Long))\")\r\n\u4e0a\u9762\u7684\u4ee3\u7801\u7247\u6bb5\u91cc\u7684\u8868\u8fbe\u5f0f\u7cbe\u786e\u5730\u5339\u914d\u5230FooDao\u7c7b\u91cc\u7684findById(Long)\u65b9\u6cd5\uff0c\u4f46\u662f\u8fd9\u770b\u8d77\u6765\u4e0d\u662f\u5f88\u7075\u6d3b\u3002\u5047\u8bbe\u6211\u4eec\u8981\u5339\u914dFooDao\u7c7b\u7684\u6240\u6709\u65b9\u6cd5\uff0c\u8fd9\u4e9b\u65b9\u6cd5\u53ef\u80fd\u4f1a\u6709\u4e0d\u540c\u7684\u65b9\u6cd5\u540d\uff0c\u4e0d\u540c\u7684\u8fd4\u56de\u503c\uff0c\u4e0d\u540c\u7684\u53c2\u6570\u5217\u8868\uff0c\u4e3a\u4e86\u8fbe\u5230\u8fd9\u79cd\u6548\u679c\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u901a\u914d\u7b26\u3002\u5982\u4e0b\u4ee3\u7801\u7247\u6bb5\u6240\u793a\uff1a\r\n\r\n@Pointcut(\"execution(* org.baeldung.dao.FooDao.*(..))\")\r\n\u7b2c\u4e00\u4e2a\u901a\u914d\u7b26\u5339\u914d\u6240\u6709\u8fd4\u56de\u503c\u7c7b\u578b\uff0c\u7b2c\u4e8c\u4e2a\u5339\u914d\u8fd9\u4e2a\u7c7b\u91cc\u7684\u6240\u6709\u65b9\u6cd5\uff0c\uff08\uff09\u62ec\u53f7\u8868\u793a\u53c2\u6570\u5217\u8868\uff0c\u62ec\u53f7\u91cc\u7684\u7528\u4e24\u4e2a\u70b9\u53f7\u8868\u793a\u5339\u914d\u4efb\u610f\u4e2a\u53c2\u6570\uff0c\u5305\u62ec0\u4e2a<\/code><\/pre>\n\n\n\n<p>within<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u4f7f\u7528within\u5207\u70b9\u6279\u793a\u7b26\u53ef\u4ee5\u8fbe\u5230\u4e0a\u9762\u4f8b\u5b50\u4e00\u6837\u7684\u6548\u679c\uff0cwithin\u7528\u6765\u9650\u5b9a\u8fde\u63a5\u70b9\u5c5e\u4e8e\u67d0\u4e2a\u786e\u5b9a\u7c7b\u578b\u7684\u7c7b\u3002\u5982\u4e0b\u9762\u4ee3\u7801\u7684\u6548\u679c\u4e0e\u4e0a\u9762\u7684\u4f8b\u5b50\u662f\u4e00\u6837\u7684\uff1a\r\n\r\n@Pointcut(\"within(org.baeldung.dao.FooDao)\")\r\n\u6211\u4eec\u4e5f\u53ef\u4ee5\u4f7f\u7528within\u6307\u793a\u7b26\u6765\u5339\u914d\u67d0\u4e2a\u5305\u4e0b\u9762\u6240\u6709\u7c7b\u7684\u65b9\u6cd5\uff08\u5305\u62ec\u5b50\u5305\u4e0b\u9762\u7684\u6240\u6709\u7c7b\u65b9\u6cd5\uff09\uff0c\u5982\u4e0b\u4ee3\u7801\u6240\u793a\uff1a\r\n\r\n@Pointcut(\"within(org.baeldung..*)\")<\/code><\/pre>\n\n\n\n<p>this \u548c target<\/p>\n\n\n\n<p>this\u7528\u6765\u5339\u914d\u7684\u8fde\u63a5\u70b9\u6240\u5c5e\u7684\u5bf9\u8c61\u5f15\u7528\u662f\u67d0\u4e2a\u7279\u5b9a\u7c7b\u578b\u7684\u5b9e\u4f8b\uff0ctarget\u7528\u6765\u5339\u914d\u7684\u8fde\u63a5\u70b9\u6240\u5c5e\u76ee\u6807\u5bf9\u8c61\u5fc5\u987b\u662f\u6307\u5b9a\u7c7b\u578b\u7684\u5b9e\u4f8b\uff1b\u90a3\u4e48\u8fd9\u4e24\u4e2a\u6709\u4ec0\u4e48\u533a\u522b\u5462\uff1f\u539f\u6765AspectJ\u5728\u5b9e\u73b0\u4ee3\u7406\u65f6\u6709\u4e24\u79cd\u65b9\u5f0f\uff1a<br>1\u3001\u5982\u679c\u5f53\u524d\u5bf9\u8c61\u5f15\u7528\u7684\u7c7b\u578b\u6ca1\u6709\u5b9e\u73b0\u81ea\u63a5\u53e3\u65f6\uff0cspring aop\u4f7f\u7528\u751f\u6210\u4e00\u4e2a\u57fa\u4e8eCGLIB\u7684\u4ee3\u7406\u7c7b\u5b9e\u73b0\u5207\u9762\u7f16\u7a0b<br>2\u3001\u5982\u679c\u5f53\u524d\u5bf9\u8c61\u5f15\u7528\u5b9e\u73b0\u4e86\u67d0\u4e2a\u63a5\u53e3\u65f6\uff0cSpring aop\u4f7f\u7528JDK\u7684\u52a8\u6001\u4ee3\u7406\u673a\u5236\u6765\u5b9e\u73b0\u5207\u9762\u7f16\u7a0b<br>this\u6307\u793a\u7b26\u5c31\u662f\u7528\u6765\u5339\u914d\u57fa\u4e8eCGLIB\u7684\u4ee3\u7406\u7c7b\uff0c\u901a\u4fd7\u7684\u6765\u8bb2\u5c31\u662f\uff0c\u5982\u679c\u5f53\u524d\u8981\u4ee3\u7406\u7684\u7c7b\u5bf9\u8c61\u6ca1\u6709\u5b9e\u73b0\u67d0\u4e2a\u63a5\u53e3\u7684\u8bdd\uff0c\u5219\u4f7f\u7528this\uff1btarget\u6307\u793a\u7b26\u7528\u4e8e\u57fa\u4e8eJDK\u52a8\u6001\u4ee3\u7406\u7684\u4ee3\u7406\u7c7b\uff0c\u901a\u4fd7\u7684\u6765\u8bb2\u5c31\u662f\u5982\u679c\u5f53\u524d\u8981\u4ee3\u7406\u7684\u76ee\u6807\u5bf9\u8c61\u6709\u5b9e\u73b0\u4e86\u67d0\u4e2a\u63a5\u53e3\u7684\u8bdd\uff0c\u5219\u4f7f\u7528target.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u6bd4\u5982\u5728\u4e0a\u9762\u8fd9\u6bb5\u4ee3\u7801\u793a\u4f8b\u4e2d\uff0cspring aop\u5c06\u4f7f\u7528jdk\u7684\u52a8\u6001\u4ee3\u7406\u6765\u5b9e\u73b0\u5207\u9762\u7f16\u7a0b\uff0c\u5728\u7f16\u5199\u5339\u914d\u8fd9\u7c7b\u578b\u7684\u76ee\u6807\u5bf9\u8c61\u7684\u8fde\u63a5\u70b9\u8868\u8fbe\u5f0f\u65f6\u8981\u4f7f\u7528target\u6307\u793a\u7b26\uff0c \u5982\u4e0b\u6240\u793a\uff1a\n@Pointcut(\"target(org.baeldung.dao.BarDao)\")\r\n\n\u5982\u679cFooDao\u7c7b\u6ca1\u6709\u5b9e\u73b0\u4efb\u4f55\u63a5\u53e3\uff0c\u6216\u8005\u5728spring aop\u914d\u7f6e\u5c5e\u6027\uff1aproxyTargetClass\u8bbe\u4e3atrue\u65f6\uff0cSpring Aop\u4f1a\u4f7f\u7528\u57fa\u4e8eCGLIB\u7684\u52a8\u6001\u5b57\u8282\u7801\u6280\u4e3a\u76ee\u6807\u5bf9\u8c61\u751f\u6210\u4e00\u4e2a\u5b50\u7c7b\u5c06\u4e3a\u4ee3\u7406\u7c7b\uff0c\u8fd9\u65f6\u5e94\u8be5\u4f7f\u7528this\u6307\u793a\u5668\n@Pointcut(\"this(org.baeldung.dao.FooDao)\")\r\n<\/code><\/pre>\n\n\n\n<p>\u53c2\u6570<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u53c2\u6570\u6307\u793a\u7b26\u662f\u4e00\u5bf9\u62ec\u53f7\u6240\u62ec\u7684\u5185\u5bb9\uff0c\u7528\u6765\u5339\u914d\u6307\u5b9a\u65b9\u6cd5\u53c2\u6570\uff1a\r\n\r\n \r\n@Pointcut(\"execution(* *..find*(Long))\")\r\n\n\n\u8fd9\u4e2a\u5207\u70b9\u5339\u914d\u6240\u6709\u4ee5find\u5f00\u5934\u7684\u65b9\u6cd5\uff0c\u5e76\u4e14\u53ea\u4e00\u4e2aLong\u7c7b\u7684\u53c2\u6570\u3002\u5982\u679c\u6211\u4eec\u60f3\u8981\u5339\u914d\u4e00\u4e2a\u6709\u4efb\u610f\u4e2a\u53c2\u6570\uff0c\u4f46\u662f\u7b2c\u4e00\u4e2a\u53c2\u6570\u5fc5\u987b\u662fLong\u7c7b\u7684\uff0c\u6211\u4eec\u8fd9\u53ef\u4f7f\u7528\u4e0b\u9762\u8fd9\u4e2a\u5207\u70b9\u8868\u8fbe\u5f0f\uff1a\r\n\r\n@Pointcut(\"execution(* *..find*(Long,..))\")<\/code><\/pre>\n\n\n\n<p>@Target<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>@Pointcut(\"@target(org.springframework.stereotype.Repository)\")\r\n<\/code><\/pre>\n\n\n\n<p>@args<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>@Pointcut(\"@args(org.baeldung.aop.annotations.Entity)\")\r\npublic void methodsAcceptingEntities() {}<\/code><\/pre>\n\n\n\n<p>@within<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u8fd9\u4e2a\u6307\u793a\u5668\uff0c\u6307\u5b9a\u5339\u914d\u5fc5\u987b\u5305\u62ec\u67d0\u4e2a\u6ce8\u89e3\u7684\u7684\u7c7b\u91cc\u7684\u6240\u6709\u8fde\u63a5\u70b9\uff1a\r\n\r\n@Pointcut(\"@within(org.springframework.stereotype.Repository)\")\r\n\u4e0a\u9762\u7684\u5207\u70b9\u8ddf\u4ee5\u4e0b\u8fd9\u4e2a\u5207\u70b9\u662f\u7b49\u6548\u7684\uff1a\r\n\r\n@Pointcut(\"within(@org.springframework.stereotype.Repository *)\")<\/code><\/pre>\n\n\n\n<p>@annotation<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u8fd9\u4e2a\u6307\u793a\u5668\u5339\u914d\u90a3\u4e9b\u6709\u6307\u5b9a\u6ce8\u89e3\u7684\u8fde\u63a5\u70b9\uff0c\u6bd4\u5982\uff0c\u6211\u4eec\u53ef\u4ee5\u65b0\u5efa\u4e00\u4e2a\u8fd9\u6837\u7684\u6ce8\u89e3@Loggable:\r\n\r\n@Pointcut(\"@annotation(org.baeldung.aop.annotations.Loggable)\")\r\npublic void loggableMethods() {}\r\n\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528@Loggable\u6ce8\u89e3\u6807\u8bb0\u54ea\u4e9b\u65b9\u6cd5\u6267\u884c\u9700\u8981\u8f93\u51fa\u65e5\u5fd7\uff1a\r\n\r\n@Before(\"loggableMethods()\")\r\npublic void logMethod(JoinPoint jp) {\r\n    String methodName = jp.getSignature().getName();\r\n    logger.info(\"Executing method: \" + methodName);\r\n}\r<\/code><\/pre>\n\n\n\n<p>&amp;&amp;\u3001||\u3001!<\/p>\n\n\n\n<p>\u53ef\u4ee5\u4f7f\u7528&amp;&amp;\u3001||\u3001!\u3001\u4e09\u79cd\u8fd0\u7b97\u7b26\u6765\u7ec4\u5408\u5207\u70b9\u8868\u8fbe\u5f0f\uff0c\u8868\u793a\u4e0e\u6216\u975e\u7684\u5173\u7cfb\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>@target @within \u533a\u522b\n@target\u8981\u6c42\u5bf9\u8c61\u7684\u8fd0\u884c\u65f6\u7c7b\u578b\u4e0e\u88ab\u6ce8\u89e3\u7684\u7c7b\u578b\u662f\u540c\u4e00\u4e2a\u7c7b\u578b\r\n@within\u8981\u6c42\u5bf9\u8c61\u7684\u8fd0\u884c\u65f6\u7c7b\u578b\u662f\u88ab\u6ce8\u89e3\u7684\u7c7b\u578b\u7684\u5b50\u7c7b<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u5207\u9762\u8bed\u6cd5 execution within this \u548c target this\u7528\u6765\u5339\u914d\u7684\u8fde\u63a5\u70b9\u6240\u5c5e\u7684\u5bf9\u8c61\u5f15\u7528\u662f\u67d0\u4e2a\u7279\u5b9a\u7c7b\u578b\u7684\u5b9e\u4f8b\uff0ctarget\u7528\u6765\u5339\u914d\u7684\u8fde\u63a5\u70b9\u6240\u5c5e\u76ee\u6807\u5bf9\u8c61\u5fc5\u987b\u662f\u6307\u5b9a\u7c7b\u578b\u7684\u5b9e\u4f8b\uff1b\u90a3\u4e48\u8fd9\u4e24\u4e2a\u6709\u4ec0\u4e48\u533a\u522b\u5462\uff1f\u539f\u6765AspectJ\u5728\u5b9e\u73b0\u4ee3\u7406\u65f6\u6709\u4e24\u79cd\u65b9\u5f0f\uff1a1\u3001\u5982\u679c\u5f53\u524d\u5bf9\u8c61\u5f15\u7528\u7684\u7c7b\u578b\u6ca1\u6709\u5b9e\u73b0\u81ea\u63a5\u53e3\u65f6\uff0cspring aop\u4f7f\u7528\u751f\u6210\u4e00\u4e2a\u57fa\u4e8eCGLIB\u7684\u4ee3\u7406\u7c7b\u5b9e\u73b0\u5207\u9762\u7f16\u7a0b2\u3001\u5982\u679c\u5f53\u524d\u5bf9\u8c61\u5f15\u7528\u5b9e\u73b0\u4e86\u67d0\u4e2a\u63a5\u53e3\u65f6\uff0cSpring aop\u4f7f\u7528JDK\u7684\u52a8\u6001\u4ee3\u7406\u673a\u5236\u6765\u5b9e\u73b0\u5207\u9762\u7f16\u7a0bthis\u6307\u793a\u7b26\u5c31\u662f\u7528\u6765\u5339\u914d\u57fa\u4e8eCGLIB\u7684\u4ee3\u7406\u7c7b\uff0c\u901a\u4fd7\u7684\u6765\u8bb2\u5c31\u662f\uff0c\u5982\u679c\u5f53\u524d\u8981\u4ee3\u7406\u7684\u7c7b\u5bf9\u8c61\u6ca1\u6709\u5b9e\u73b0\u67d0\u4e2a\u63a5\u53e3\u7684\u8bdd\uff0c\u5219\u4f7f\u7528this\uff1btarget\u6307\u793a\u7b26\u7528\u4e8e\u57fa\u4e8eJDK\u52a8\u6001\u4ee3\u7406\u7684\u4ee3\u7406\u7c7b\uff0c\u901a\u4fd7\u7684\u6765\u8bb2\u5c31\u662f\u5982\u679c\u5f53\u524d\u8981\u4ee3\u7406\u7684\u76ee\u6807\u5bf9\u8c61\u6709\u5b9e\u73b0\u4e86\u67d0\u4e2a\u63a5\u53e3\u7684\u8bdd\uff0c\u5219\u4f7f\u7528target. \u53c2\u6570 @Target @args @within @annotation &amp;&amp;\u3001||\u3001! \u53ef\u4ee5\u4f7f\u7528&amp;&amp;\u3001||\u3001!\u3001\u4e09\u79cd\u8fd0\u7b97\u7b26\u6765\u7ec4\u5408\u5207\u70b9\u8868\u8fbe\u5f0f\uff0c\u8868\u793a\u4e0e\u6216\u975e\u7684\u5173\u7cfb\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[8],"tags":[43],"_links":{"self":[{"href":"https:\/\/robinluo.top\/index.php?rest_route=\/wp\/v2\/posts\/302"}],"collection":[{"href":"https:\/\/robinluo.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/robinluo.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/robinluo.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/robinluo.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=302"}],"version-history":[{"count":5,"href":"https:\/\/robinluo.top\/index.php?rest_route=\/wp\/v2\/posts\/302\/revisions"}],"predecessor-version":[{"id":307,"href":"https:\/\/robinluo.top\/index.php?rest_route=\/wp\/v2\/posts\/302\/revisions\/307"}],"wp:attachment":[{"href":"https:\/\/robinluo.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=302"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/robinluo.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=302"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/robinluo.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=302"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}