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关于Aop切面中的@Before @Around等操作顺序的说明
【转】http://www.cnblogs.com/softidea/p/6123307.html
话不多说,直接上代码:
package com.cdms.aop.aspectImpl; import org.aspectj.lang.JoinPoint; import org.aspectj.lang.ProceedingJoinPoint; import org.aspectj.lang.annotation.*; import org.springframework.stereotype.Component; import java.util.Arrays; import java.util.List; /** * 创建 by 草帽boy on 2017/4/1. */ @Aspect @Component public class ICacheAopAction { @Pointcut("@annotation(com.cdms.aop.ICache)") private void controllerAspect(){} @Before("controllerAspect()") public void Before(JoinPoint joinPoint){ String classname = joinPoint.getTarget().getClass().getSimpleName(); String methodName = joinPoint.getSignature().getName(); List<Object> args = Arrays.asList(joinPoint.getArgs()); System.out.println("@before Execute! --class name: " + classname + ", method name: " + methodName + " " + args ); } @Around("controllerAspect()") public Object Around(ProceedingJoinPoint proceedingJoinPoint) throws Throwable { System.out.println("@Around:执行目标方法之前..."); Object obj= proceedingJoinPoint.proceed(); System.out.println("@Around:执行目标方法之后..."); System.out.println("@Around:被织入的目标对象为:" + proceedingJoinPoint.getTarget()); System.out.println( "@Around:原返回值:" + obj + ",这是返回结果的后缀"); return obj; } @AfterThrowing("controllerAspect()") public void AfterThrowing(){ System.out.println("异常通知...."); } @After("controllerAspect()") public void After(JoinPoint point){ System.out.println("@After:模拟释放资源..."); System.out.println("@After:目标方法为:" + point.getSignature().getDeclaringTypeName() + "." + point.getSignature().getName()); System.out.println("@After:参数为:" + Arrays.toString(point.getArgs())); System.out.println("@After:被织入的目标对象为:" + point.getTarget()); } @AfterReturning("controllerAspect()") public void AfterReturning(JoinPoint point){ System.out.println("@AfterReturning:模拟日志记录功能..."); System.out.println("@AfterReturning:目标方法为:" + point.getSignature().getDeclaringTypeName() + "." + point.getSignature().getName()); System.out.println("@AfterReturning:参数为:" + Arrays.toString(point.getArgs())); System.out.println("@AfterReturning:返回值为:" ); System.out.println("@AfterReturning:被织入的目标对象为:" + point.getTarget()); } }
测试的结果是:
这样就很清楚的看出各种方法是在什么时候调用的啦
关于Aop切面中的@Before @Around等操作顺序的说明
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