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@Componentpublic 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

原文地址：http://www.mamicode.com/info-detail-1742756.html