{"id":18328,"date":"2025-07-05T18:39:06","date_gmt":"2025-07-05T10:39:06","guid":{"rendered":"https:\/\/92it.top\/?p=18328"},"modified":"2025-07-05T18:39:06","modified_gmt":"2025-07-05T10:39:06","slug":"aop%e5%88%87%e9%9d%a2%e7%bc%96%e7%a8%8b%ef%bc%9a%e4%b8%89%e8%a1%8c%e4%bb%a3%e7%a0%81%e6%8b%a6%e6%88%aa10%e4%b8%87%e6%ac%a1%e8%af%b7%e6%b1%82%e6%97%a5%e5%bf%97%ef%bc%81","status":"publish","type":"post","link":"https:\/\/92it.top\/?p=18328","title":{"rendered":"AOP\u5207\u9762\u7f16\u7a0b\uff1a\u4e09\u884c\u4ee3\u7801\u62e6\u622a10\u4e07\u6b21\u8bf7\u6c42\u65e5\u5fd7\uff01"},"content":{"rendered":"\n

\u8f6c\u8f7d\uff1aAOP\u5207\u9762\u7f16\u7a0b\uff1a\u4e09\u884c\u4ee3\u7801\u62e6\u622a10\u4e07\u6b21\u8bf7\u6c42\u65e5\u5fd7\uff01<\/a><\/p>\n\n\n\n

\u5f53\u4f60\u8fd8\u5728\u6bcf\u4e2a\u65b9\u6cd5\u91cc\u91cd\u590d\u7f16\u5199\u65e5\u5fd7\u4ee3\u7801\u65f6\uff0c\u53ef\u66fe\u60f3\u8fc7\u2014\u2014 \u4e3a\u4ec0\u4e48\u6838\u5fc3\u4e1a\u52a1\u603b\u8981\u88ab\u76d1\u63a7\u903b\u8f91\u6c61\u67d3\uff1f \u4e3a\u4f55\u4fee\u6539\u65e5\u5fd7\u683c\u5f0f\u8981\u7ffb\u904d\u4e0a\u767e\u4e2a\u65b9\u6cd5\uff1f \u5982\u4f55\u8ba9\u7cfb\u7edf\u81ea\u52a8\u8bb0\u5f55\u6bcf\u6b21\u8c03\u7528\u7684\u6027\u80fd\u6307\u7eb9\uff1f<\/p>\n\n\n\n

Spring AOP\u6b63\u662f\u4e3a\u6b64\u800c\u751f\uff01<\/strong>\u00a0\u4eca\u5929\u6211\u5c06\u7528\u771f\u5b9e\u7535\u5546\u9879\u76ee\u6f14\u793a\uff0c\u5982\u4f55\u7528\u4e09\u884c\u4ee3\u7801\u5b9e\u73b0\u5341\u4e07\u7ea7\u8bf7\u6c42\u7684\u65e5\u5fd7\u62e6\u622a\uff0c\u5e76\u63ed\u79d8\u52a8\u6001\u4ee3\u7406\u80cc\u540e\u7684\u9b54\u6cd5\u3002\u6587\u672b\u63d0\u4f9b\u538b\u6d4b\u62a5\u544a\u548c\u907f\u5751\u6307\u5357\uff0c\u8ba9\u4f60\u7684\u7cfb\u7edf\u76d1\u63a7\u80fd\u529b\u8d28\u7684\u98de\u8dc3\uff01<\/p>\n\n\n\n

\u3000<\/p>\n\n\n\n

\u4e00\u3001\u75db\u70b9\u89c9\u9192\uff1a\u4f20\u7edf\u65e5\u5fd7\u8bb0\u5f55\u7684\u56f0\u5883<\/strong><\/p>\n\n\n\n

\n\n\n\n

\u7535\u5546\u573a\u666f<\/strong>\uff1a\u8ba2\u5355\u521b\u5efa\u6d41\u7a0b\u7684\u65e5\u5fd7\u9700\u6c42\u3002<\/p>\n\n\n\n

\/\/ \u4f20\u7edf\u5199\u6cd5\uff1a\u65e5\u5fd7\u4ee3\u7801\u4e0e\u4e1a\u52a1\u903b\u8f91\u8026\u5408\npublic Order createOrder(OrderRequest request){\nlong start = System.currentTimeMillis();\nlog.info(\"\u5f00\u59cb\u521b\u5efa\u8ba2\u5355, \u53c2\u6570: {}\", request);  \/\/ \u91cd\u590d\u4ee3\u78011\n\ntry {\n\/\/ \u6838\u5fc3\u4e1a\u52a1\u903b\u8f91\uff0830\u884c\u4ee3\u7801\uff09\n        Order order = orderService.process(request);\n\nlog.info(\"\u8ba2\u5355\u521b\u5efa\u6210\u529f, ID: {}\", order.getId());  \/\/ \u91cd\u590d\u4ee3\u78012\nreturn order;\n    } catch (Exception e) {\nlog.error(\"\u8ba2\u5355\u521b\u5efa\u5931\u8d25\", e);  \/\/ \u91cd\u590d\u4ee3\u78013\nthrow e;\n    } finally {\nlog.info(\"\u8017\u65f6: {}ms\", System.currentTimeMillis()-start);  \/\/ \u91cd\u590d\u4ee3\u78014\n    }\n}<\/pre>\n\n\n\n
\u5f00\u53d1\u8005\u56f0\u5883<\/strong>\uff1a<\/p>\n\n\n\n
    \n
  1. \u4ee3\u7801\u5197\u4f59<\/strong>\uff1a\u6bcf\u4e2a\u4e1a\u52a1\u65b9\u6cd5\u9700\u624b\u5de5\u6dfb\u52a0\u65e5\u5fd7\u3002<\/li>\n\n\n\n
  2. \u7ef4\u62a4\u5669\u68a6<\/strong>\uff1a\u4fee\u6539\u65e5\u5fd7\u683c\u5f0f\u9700\u5168\u5c40\u641c\u7d22\u66ff\u6362\u3002<\/li>\n\n\n\n
  3. \u4fb5\u5165\u6027\u5f3a<\/strong>\uff1a\u4e1a\u52a1\u903b\u8f91\u88ab\u975e\u529f\u80fd\u4ee3\u7801\u6df9\u6ca1\u3002<\/li>\n\n\n\n
  4. \u9057\u6f0f\u98ce\u9669<\/strong>\uff1a\u65b0\u4eba\u5f00\u53d1\u6613\u5fd8\u8bb0\u6dfb\u52a0\u65e5\u5fd7\u3002<\/li>\n<\/ol>\n\n\n\n
    \u9762\u5bf9\u8fd9\u4e9b\u75db\u70b9\uff0c\u6211\u4eec\u8feb\u5207\u9700\u8981\u4e00\u79cd\u65b9\u6848\u2014\u2014\u65e2\u80fd\u5b8c\u6574\u8bb0\u5f55\u8c03\u7528\u4fe1\u606f\uff0c\u53c8\u8ba9\u4e1a\u52a1\u4ee3\u7801\u4fdd\u6301\u7eaf\u51c0\u3002\u8fd9\u5c31\u50cf\u8981\u5728\u4e0d\u6253\u5f00\u7535\u89c6\u673a\u7684\u60c5\u51b5\u4e0b\u7ef4\u4fee\u5185\u90e8\u7535\u8def\uff0c\u800cSpring AOP\u63d0\u4f9b\u7684\u201c\u65e0\u521b\u624b\u672f\u201d\u65b9\u6848\uff0c\u5b8c\u7f8e\u89e3\u51b3\u4e86\u8fd9\u4e2a\u96be\u9898\u3002<\/p>\n\n\n\n
    \u3000<\/p>\n\n\n\n
    \u4e8c\u3001AOP\u6838\u5fc3\u6982\u5ff5\uff1a\u4e94\u5206\u949f\u638c\u63e1\u201c\u5207\u9762\u601d\u7ef4\u201d<\/strong><\/p>\n\n\n\n
    \n\n\n\n
    \u751f\u6d3b\u5316\u6bd4\u55bb<\/strong>\uff1a<\/p>\n\n\n\n
    [\u4e1a\u52a1\u65b9\u6cd5] \u2192 \u533b\u9662\u5c31\u8bca\u6d41\u7a0b  \n[\u5207\u9762]     \u2192 \u667a\u80fd\u5bfc\u8bca\u7cfb\u7edf  \n\n1. **\u8fde\u63a5\u70b9(JoinPoint)**\uff1a\u5c31\u8bca\u73af\u8282\uff08\u6302\u53f7\u3001\u95ee\u8bca\u3001\u53d6\u836f\uff09  \n2. **\u5207\u70b9(Pointcut)**\uff1a\u5b9a\u4f4d\u7279\u5b9a\u73af\u8282\uff08\u5982\u6240\u6709\u95ee\u8bca\u5ba4\uff09  \n3. **\u901a\u77e5(Advice)**\uff1a\u5bfc\u8bca\u52a8\u4f5c\uff08\u6392\u961f\u63d0\u9192\u3001\u6ee1\u610f\u5ea6\u8c03\u67e5\uff09  \n4. **\u5207\u9762(Aspect)**\uff1a\u5b8c\u6574\u7684\u5bfc\u8bca\u7cfb\u7edf<\/pre>\n\n\n\n
    \u6280\u672f\u6620\u5c04\u8868<\/strong>\uff1a<\/p>\n\n\n\n
    \u751f\u6d3b\u573a\u666f<\/td>AOP\u6982\u5ff5<\/td>\u6280\u672f\u5b9e\u73b0<\/td><\/tr>
    \u95ee\u8bca\u524d\u53d6\u53f7<\/td>\u524d\u7f6e\u901a\u77e5<\/td>@Before<\/td><\/tr>
    \u533b\u751f\u5199\u8bca\u65ad\u4e66<\/td>\u8fd4\u56de\u901a\u77e5<\/td>@AfterReturning<\/td><\/tr>
    \u53d6\u836f\u540e\u6ee1\u610f\u5ea6\u8c03\u67e5<\/td>\u540e\u7f6e\u901a\u77e5<\/td>@After<\/td><\/tr>
    \u5c31\u8bca\u5f02\u5e38\u8f6c\u6025\u8bca<\/td>\u5f02\u5e38\u901a\u77e5<\/td>@AfterThrowing<\/td><\/tr>
    \u5168\u8eab\u4f53\u68c0<\/td>\u73af\u7ed5\u901a\u77e5<\/td>@Around<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
    \u3000<\/p>\n\n\n\n
    \u7406\u89e3\u4e86\u8fd9\u4e9b\u6982\u5ff5\uff0c\u6211\u4eec\u770b\u770b\u5982\u4f55\u7528Spring AOP\u6539\u9020\u4e4b\u524d\u7684\u8ba2\u5355\u670d\u52a1\u3002\u4f60\u4f1a\u53d1\u73b0\uff0c\u539f\u6765\u7e41\u6742\u7684\u65e5\u5fd7\u4ee3\u7801\uff0c\u7adf\u7136\u80fd\u7cbe\u7b80\u5230\u5982\u6b64\u4f18\u96c5\u3002<\/p>\n\n\n\n
    \u3000<\/p>\n\n\n\n
    \u4e09\u3001\u5b9e\u6218\uff1a\u4e09\u884c\u4ee3\u7801\u5b9e\u73b0\u65e5\u5fd7\u5207\u9762<\/strong><\/p>\n\n\n\n
    \n\n\n\n
    \u573a\u666f<\/strong>\uff1a\u4e3a\u7535\u5546\u8ba2\u5355\u670d\u52a1\u6dfb\u52a0\u5168\u94fe\u8def\u65e5\u5fd7\u3002<\/p>\n\n\n\n
    \/ 1. \u5b9a\u4e49\u65e5\u5fd7\u5207\u9762\n@Aspect\n@Component\npublicclassLoggingAspect{\n\n\/\/ 2. \u5b9a\u4f4d\u5207\u70b9\uff1a\u62e6\u622a\u6240\u6709Service\u5c42\u65b9\u6cd5\n@Pointcut(\"execution(* com.example.ecommerce..*Service.*(..))\")\npublicvoidserviceLayer(){}\n\n\/\/ 3. \u73af\u7ed5\u901a\u77e5\u5b9e\u73b0\u65e5\u5fd7\u62e6\u622a\n@Around(\"serviceLayer()\")\npublic Object logMethodCall(ProceedingJoinPoint joinPoint)throws Throwable {\n        String methodName = joinPoint.getSignature().getName();\n        Object[] args = joinPoint.getArgs();\n\n\/\/ \u8bb0\u5f55\u8bf7\u6c42\n        log.info(\"\u2192\u2192 \u8c03\u7528 {} \u53c2\u6570: {}\", methodName, Arrays.toString(args));\nlong start = System.currentTimeMillis();\n\ntry {\n\/\/ \u6267\u884c\u539f\u65b9\u6cd5\n            Object result = joinPoint.proceed();\n\n\/\/ \u8bb0\u5f55\u54cd\u5e94\n            log.info(\"\u2190\u2190 \u6210\u529f {} \u8fd4\u56de: {} \u8017\u65f6: {}ms\", \n                methodName, result, System.currentTimeMillis()-start);\nreturn result;\n        } catch (Exception e) {\n\/\/ \u8bb0\u5f55\u5f02\u5e38\n            log.error(\"\u00d7\u00d7 \u5931\u8d25 {} \u5f02\u5e38: {} \u8017\u65f6: {}ms\", \n                methodName, e.getMessage(), System.currentTimeMillis()-start);\nthrow e;\n        }\n    }\n}<\/pre>\n\n\n\n
    \u6548\u679c\u5bf9\u6bd4<\/strong>\uff1a<\/p>\n\n\n\n
    \/\/ \u6539\u9020\u540e\u7684\u8ba2\u5355\u670d\u52a1\uff08\u7eaf\u51c0\u65e0\u6c61\u67d3\uff09\npublic Order createOrder(OrderRequest request){\n\/\/ \u7eaf\u4e1a\u52a1\u903b\u8f91\nreturn orderService.process(request);\n}\n\n\/\/ \u63a7\u5236\u53f0\u8f93\u51fa\u793a\u4f8b\uff1a\n\/\/ \u2192\u2192 \u8c03\u7528 createOrder \u53c2\u6570: [OrderRequest(userId=101, productId=204)]\n\/\/ \u2190\u2190 \u6210\u529f createOrder \u8fd4\u56de: Order(id=2023072812) \u8017\u65f6: 48ms<\/pre>\n\n\n\n
    \u5982\u6b64\u7b80\u6d01\u7684\u5b9e\u73b0\uff0c\u5374\u5e26\u6765\u4e86\u5f3a\u5927\u7684\u76d1\u63a7\u80fd\u529b\u3002\u4f46\u4f60\u53ef\u80fd\u597d\u5947\uff1aSpring\u5982\u4f55\u5728\u8fd0\u884c\u65f6\u2018\u65e0\u4fb5\u5165\u2019\u5730\u589e\u5f3a\u539f\u6709\u65b9\u6cd5\uff1f\u8fd9\u80cc\u540e\u662f\u4e24\u79cd\u52a8\u6001\u4ee3\u7406\u6280\u672f\u7684\u535a\u5f08\u3002<\/p>\n\n\n\n
    \u3000<\/p>\n\n\n\n
    \u56db\u3001\u539f\u7406\u63ed\u79d8\uff1aJDK\u4ee3\u7406\u4e0eCGLIB\u7684\u5dc5\u5cf0\u5bf9\u51b3<\/strong><\/p>\n\n\n\n
    \n\n\n\n
    \u8fd0\u884c\u673a\u5236\u56fe\u89e3<\/strong>\uff1a<\/p>\n\n\n
    \n
    \"\"<\/figure><\/div>\n\n\n
    \u6280\u672f\u5bf9\u6bd4<\/strong>\uff1a<\/p>\n\n\n\n
    \u7ef4\u5ea6<\/strong><\/td>JDK\u52a8\u6001\u4ee3\u7406<\/strong><\/td>CGLIB<\/strong><\/td><\/tr>
    \u5b9e\u73b0\u673a\u5236<\/strong><\/td>\u57fa\u4e8e\u63a5\u53e3\u5b9e\u73b0InvocationHandler<\/td>\u901a\u8fc7ASM\u5e93\u751f\u6210\u5b50\u7c7b\u8986\u76d6\u65b9\u6cd5<\/td><\/tr>
    \u6027\u80fd<\/strong><\/td>\u8c03\u7528\u901f\u5ea6\u8f83\u5feb\uff08\u7ea61.2\u500d\uff09<\/td>\u521b\u5efa\u4ee3\u7406\u8f83\u6162\uff0c\u8c03\u7528\u7565\u6162<\/td><\/tr>
    \u9650\u5236<\/strong><\/td>\u5fc5\u987b\u5b9e\u73b0\u63a5\u53e3<\/td>\u65e0\u6cd5\u4ee3\u7406final\u65b9\u6cd5<\/td><\/tr>
    \u5185\u5b58\u5f00\u9500<\/strong><\/td>\u8f83\u5c0f<\/td>\u6bcf\u4e2a\u4ee3\u7406\u7c7b\u5360\u7528\u7ea6500\u5b57\u8282\u5143\u7a7a\u95f4<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
    \u3000\u3000
    \u6e90\u7801\u7ea7\u89e3\u6790<\/strong>\uff1a<\/p>\n\n\n\n
    \/\/ JDK\u4ee3\u7406\u6838\u5fc3\u6d41\u7a0b\npublicObject invoke(Object proxy, Method method, Object[] args) {\n\/\/ 1. \u5982\u679c\u65b9\u6cd5\u662ftoString()\u7b49Object\u65b9\u6cd5\uff0c\u76f4\u63a5\u8c03\u7528\nif (method.getDeclaringClass() == Object.class) {\nreturn method.invoke(target, args);\n    }\n\n\/\/ 2. \u83b7\u53d6\u5339\u914d\u7684\u62e6\u622a\u5668\u94fe\n    List<MethodInterceptor> chain = getInterceptors(method);\n\n\/\/ 3. \u521b\u5efa\u65b9\u6cd5\u8c03\u7528\u94fe\n    MethodInvocation invocation = new ReflectiveMethodInvocation(\n        target, method, args, chain\n    );\n\n\/\/ 4. \u94fe\u5f0f\u6267\u884c\nreturn invocation.proceed();\n}\n\n\/\/ CGLIB\u62e6\u622a\u6d41\u7a0b\npublicObject intercept(Object obj, Method method, Object[] args, MethodProxy proxy) {\n\/\/ 1. \u521b\u5efa\u62e6\u622a\u5668\u94fe\n    List<MethodInterceptor> chain = createInterceptorChain(method);\n\n\/\/ 2. \u6267\u884c\u62e6\u622a\u94fe\nif (chain.isEmpty()) {\nreturn proxy.invokeSuper(obj, args);\n    } else {\nreturnnew CglibMethodInvocation(obj, method, args, proxy, chain).proceed();\n    }\n}<\/pre>\n\n\n\n
    \u7406\u89e3\u4e86\u4ee3\u7406\u673a\u5236\uff0c\u6211\u4eec\u5c31\u80fd\u89e3\u91ca\u5f88\u591a\u8be1\u5f02\u73b0\u8c61\u3002\u6bd4\u5982\u4e3a\u4ec0\u4e48\u6709\u4e9b@Transactional\u6ce8\u89e3\u4f1a\u5931\u6548\uff1f\u4f46\u5728\u89e3\u51b3\u8fd9\u4e9b\u95ee\u9898\u524d\uff0c\u5148\u8981\u786e\u4fdd\u5207\u9762\u672c\u8eab\u4e0d\u4f1a\u6210\u4e3a\u6027\u80fd\u74f6\u9888\u3002<\/p>\n\n\n\n
    \u3000<\/p>\n\n\n\n
    \u4e94\u3001\u6027\u80fd\u4f18\u5316\uff1a\u9ad8\u5e76\u53d1\u4e0b\u7684\u5207\u9762\u4e4b\u9053<\/strong><\/p>\n\n\n\n
    \n\n\n\n
    \u538b\u6d4b\u95ee\u9898<\/strong>\uff1a\u5f53QPS > 5000\u65f6\u65e5\u5fd7\u5207\u9762CPU\u5360\u7528\u98d9\u5347\u3002<\/p>\n\n\n\n
    \u4f18\u5316\u65b9\u6848<\/strong>\uff1a<\/p>\n\n\n\n
    @Around(\"serviceLayer()\")\npublic Object optimizedLog(ProceedingJoinPoint joinPoint) throws Throwable {\n\/\/ \u4f18\u5316\u70b91\uff1a\u964d\u4f4e\u65e5\u5fd7\u7ea7\u522b\nif (!log.isInfoEnabled()) { \/\/ \u5feb\u901f\u5931\u8d25\nreturn joinPoint.proceed();\n    }\n\n\/\/ \u4f18\u5316\u70b92\uff1a\u5ef6\u8fdf\u65e5\u5fd7\u62fc\u63a5\n    Object[] args = joinPoint.getArgs();\n    String methodName = null; \/\/ \u5ef6\u8fdf\u521d\u59cb\u5316\n\nlong start = System.currentTimeMillis();\ntry {\n        Object result = joinPoint.proceed();\n\n\/\/ \u4f18\u5316\u70b93\uff1a\u5f02\u6b65\u8bb0\u5f55\u6210\u529f\u65e5\u5fd7\nif (log.isInfoEnabled()) {\n            methodName = joinPoint.getSignature().getName(); \/\/ \u7528\u65f6\u518d\u83b7\u53d6\n            logExecutor.submit(() -> \nlog.info(\"\u6210\u529f {} \u8017\u65f6: {}ms\", methodName, System.currentTimeMillis()-start)\n            );\n        }\nreturn result;\n    } catch (Exception e) {\n\/\/ \u540c\u6b65\u8bb0\u5f55\u9519\u8bef\uff08\u5173\u952e\u5f02\u5e38\u7acb\u5373\u8f93\u51fa\uff09\n        methodName = joinPoint.getSignature().getName();\nlog.error(\"\u5931\u8d25 {} \u53c2\u6570: {}\", methodName, Arrays.toString(args), e);\nthrow e;\n    }\n}<\/pre>\n\n\n\n
    \u538b\u6d4b\u62a5\u544a<\/strong>\uff08\u5355\u673a4\u68388G\uff09\uff1a<\/p>\n\n\n\n
    \u573a\u666f<\/strong><\/td>QPS<\/strong><\/td>\u5e73\u5747\u8017\u65f6<\/strong><\/td>CPU\u5360\u7528<\/strong><\/td><\/tr>
    \u65e0\u5207\u9762<\/td>12,300<\/td>32ms<\/td>45%<\/td><\/tr>
    \u57fa\u7840\u5207\u9762<\/td>8,200<\/td>68ms<\/td>92%<\/td><\/tr>
    \u4f18\u5316\u540e\u5207\u9762<\/strong><\/td>11,800<\/strong><\/td>35ms<\/strong><\/td>52%<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
    \u3000<\/p>\n\n\n\n
    \u5173\u952e\u4f18\u5316\u70b9\uff1a<\/p>\n\n\n\n
      \n
    1. \u65e5\u5fd7\u7ea7\u522b\u9884\u5148\u5224\u65ad<\/li>\n\n\n\n
    2. \u8017\u65f6\u64cd\u4f5c\u5f02\u6b65\u5316<\/li>\n\n\n\n
    3. \u5f02\u5e38\u65e5\u5fd7\u540c\u6b65\u8f93\u51fa<\/li>\n\n\n\n
    4. \u907f\u514d\u9891\u7e41\u65b9\u6cd5\u7b7e\u540d\u89e3\u6790<\/li>\n<\/ol>\n\n\n\n
      \u4f18\u5316\u540e\u7684\u5207\u9762\u5df2\u63a5\u8fd1\u539f\u751f\u6027\u80fd\uff0c\u4f46\u5728\u590d\u6742\u9879\u76ee\u4e2d\u4ecd\u4f1a\u9047\u5230\u5404\u79cd\u2018\u7384\u5b66\u2019\u95ee\u9898\u3002\u6839\u636e\u793e\u533a\u6570\u636e\u7edf\u8ba1\uff0c\u4ee5\u4e0b\u4e94\u79cd\u573a\u666f\u5bfc\u81f480%\u7684AOP\u5931\u6548\u6848\u4f8b\u3002<\/p>\n\n\n\n
      \u3000<\/p>\n\n\n\n
      \u516d\u3001\u907f\u5751\u6307\u5357\uff1aAOP\u5931\u6548\u7684\u4e94\u5927\u9677\u9631<\/strong><\/p>\n\n\n\n
      \n\n\n\n
      \u9677\u96311\uff1a\u5185\u90e8\u65b9\u6cd5\u8c03\u7528\u7ed5\u8fc7\u4ee3\u7406\uff1a<\/strong><\/p>\n\n\n\n
      @Service\npublicclassOrderService{\npublicvoidcreateOrder(OrderRequest req){\n\/\/ \u76f4\u63a5\u8c03\u7528\u5bfc\u81f4@Transactional\u5931\u6548\uff01\n        validateStock(req); \n    }\n\n@Transactional\/\/ \u4e8b\u52a1\u6ce8\u89e3\npublicvoidvalidateStock(OrderRequest req){\n\/\/ \u5e93\u5b58\u6821\u9a8c\u903b\u8f91\n    }\n}<\/pre>\n\n\n\n
      \u89e3\u51b3\u65b9\u6848<\/strong>\uff1a<\/p>\n\n\n\n
      \/\/ \u65b9\u6cd51\uff1a\u901a\u8fc7\u4ee3\u7406\u5bf9\u8c61\u8c03\u7528\uff08\u63a8\u8350\uff09\npublicvoidcreateOrder(OrderRequest req){\n    ((OrderService) AopContext.currentProxy()).validateStock(req);\n}\n\n\/\/ \u65b9\u6cd52\uff1a\u6ce8\u5165\u81ea\u8eab\u4ee3\u7406\uff08Spring Boot 2.6+\uff09\n@Autowired\nprivate OrderService selfProxy;<\/pre>\n\n\n\n
      \u3000<\/p>\n\n\n\n
      \u9677\u96312\uff1a\u5207\u70b9\u8868\u8fbe\u5f0f\u8fc7\u5ea6\u5339\u914d<\/strong><\/p>\n\n\n\n
      \/\/ \u9519\u8bef\u793a\u4f8b\uff1a\u5339\u914d\u6240\u6709Controller\u5bfc\u81f4\u6027\u80fd\u95ee\u9898\n@Pointcut(\"execution(* com.example..*.*(..))\")\/\/ \u8303\u56f4\u592a\u5927<\/pre>\n\n\n\n
      \u7cbe\u51c6\u5207\u70b9\u5199\u6cd5<\/strong>\uff1a<\/p>\n\n\n\n
      \/\/ \u6700\u4f73\u5b9e\u8df5\uff1a\u9650\u5b9a\u5305\u8def\u5f84+\u6ce8\u89e3\n@Pointcut(\"@within(org.springframework.web.bind.annotation.RestController)\")<\/pre>\n\n\n\n
      \u3000<\/p>\n\n\n\n
      \u9677\u96313\uff1afinal\u65b9\u6cd5\u65e0\u6cd5\u4ee3\u7406<\/strong><\/p>\n\n\n\n
      publicclassPaymentService {\npublicfinalvoidprocess(Payment payment){ \/\/ final\u65b9\u6cd5\n\/\/ \u652f\u4ed8\u903b\u8f91\n    }\n}<\/pre>\n\n\n\n
      \u89e3\u51b3\u65b9\u6848<\/strong>\uff1a<\/p>\n\n\n\n
        \n
      1. \u79fb\u9664final\u5173\u952e\u5b57\u3002<\/li>\n\n\n\n
      2. \u4f7f\u7528\u7ec4\u5408\u6a21\u5f0f\u800c\u975e\u7ee7\u627f\u3002<\/li>\n<\/ol>\n\n\n\n
        \u3000<\/p>\n\n\n\n
        \u9677\u96314\uff1aBean\u521d\u59cb\u5316\u987a\u5e8f\u95ee\u9898<\/strong><\/p>\n\n\n\n
        @Component\npublicclassEarlyInitBean{\n@Autowired\nprivate LoggingAspect aspect; \/\/ \u5207\u9762\u5c1a\u672a\u521d\u59cb\u5316!\n}<\/pre>\n\n\n\n
        \u89e3\u51b3\u65b9\u6848<\/strong>\uff1a<\/p>\n\n\n\n
        @DependsOn(\"loggingAspect\") \/\/ \u5f3a\u5236\u4f9d\u8d56\u987a\u5e8f\n@Component\npublic class EarlyInitBean { ... }<\/pre>\n\n\n\n
        \u3000<\/p>\n\n\n\n
        \u9677\u96315\uff1a\u5f02\u5e38\u5904\u7406\u541e\u6ca1\u539f\u59cb\u5f02\u5e38<\/strong><\/p>\n\n\n\n
        @AfterThrowing(pointcut=\"serviceLayer()\", throwing=\"ex\")\npublicvoidhandleError(JoinPoint jp, Exception ex){\n\/\/ \u672a\u91cd\u65b0\u629b\u51fa\u5f02\u5e38 \u2192 \u4e8b\u52a1\u4e0d\u4f1a\u56de\u6eda\uff01\nlog.error(\"\u65b9\u6cd5\u5f02\u5e38\", ex);\n}<\/pre>\n\n\n\n
        \u4fee\u6b63\u65b9\u6848<\/strong>\uff1a<\/p>\n\n\n\n
        \/\/ \u73af\u7ed5\u901a\u77e5\u5185\u76f4\u63a5throw\u5f02\u5e38\n@Around(\"serviceLayer()\")\npublic Object handleInAround(ProceedingJoinPoint jp) {\ntry {\nreturn jp.proceed();\n    } catch (Exception ex) {\n\/\/ \u8bb0\u5f55\u65e5\u5fd7...\nthrow ex; \/\/ \u5173\u952e\uff1a\u91cd\u65b0\u629b\u51fa\n    }\n}<\/pre>\n\n\n\n
        \u6027\u80fd\u5b9e\u9a8c\u5ba4<\/strong><\/p>\n\n\n\n
        AOP\u4ee3\u7406\u521b\u5efa\u8017\u65f6\u6d4b\u8bd5<\/strong>\uff08\u521b\u5efa1000\u4e2aBean\uff09\uff1a<\/p>\n\n\n\n
        \u4ee3\u7406\u7c7b\u578b<\/strong><\/td>\u603b\u8017\u65f6<\/strong><\/td>\u5185\u5b58\u589e\u91cf<\/strong><\/td><\/tr>
        \u65e0\u4ee3\u7406<\/td>120ms<\/td>15MB<\/td><\/tr>
        JDK\u4ee3\u7406<\/td>280ms<\/td>22MB<\/td><\/tr>
        CGLIB\u4ee3\u7406<\/td>420ms<\/td>58MB<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
        \u3000<\/p>\n\n\n\n
        \u7ed3\u8bba<\/strong>\uff1a<\/p>\n\n\n\n
          \n
        • \u63a5\u53e3\u660e\u786e\u7684Service\u4f18\u5148\u7528JDK\u4ee3\u7406\u3002<\/li>\n\n\n\n
        • \u9ad8\u5e76\u53d1\u670d\u52a1\u4e25\u683c\u63a7\u5236\u5207\u9762\u6570\u91cf\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"
          \u8f6c\u8f7d\uff1aAOP\u5207\u9762\u7f16\u7a0b\uff1a\u4e09\u884c\u4ee3\u7801\u62e6\u622a10\u4e07\u6b21\u8bf7\u6c42\u65e5\u5fd7\uff01 \u5f53\u4f60\u8fd8\u5728\u6bcf\u4e2a\u65b9\u6cd5\u91cc\u91cd\u590d\u7f16\u5199\u65e5\u5fd7\u4ee3\u7801\u65f6\uff0c\u53ef\u66fe\u60f3\u8fc7\u2014\u2014 \u4e3a\u4ec0 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26,27],"tags":[],"_links":{"self":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/18328"}],"collection":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=18328"}],"version-history":[{"count":1,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/18328\/revisions"}],"predecessor-version":[{"id":18330,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/18328\/revisions\/18330"}],"wp:attachment":[{"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=18328"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=18328"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=18328"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}