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：

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   package com.cdms.aop.aspectImpl;
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   import org.aspectj.lang.JoinPoint;
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   import org.aspectj.lang.ProceedingJoinPoint;
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   import org.aspectj.lang.annotation.*;
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   import org.springframework.stereotype.Component;
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   import java.util.Arrays;
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   import java.util.List;
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    /**
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    * 创建 by 草帽boy on 2017/4/1.
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    */
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    @Aspect
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    @Component
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    public class ICacheAopAction {
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    @Pointcut("@annotation(com.cdms.aop.ICache)")
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    private void controllerAspect(){}
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    @Before("controllerAspect()")
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    public void Before(JoinPoint joinPoint){
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    String classname = joinPoint.getTarget().getClass().getSimpleName();
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    String methodName = joinPoint.getSignature().getName();
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    List<Object> args = Arrays.asList(joinPoint.getArgs());
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    System.out.println("@before Execute! --class name: " + classname + ", method name: " + methodName + " " + args );
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    }
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    @Around("controllerAspect()")
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    public Object Around(ProceedingJoinPoint proceedingJoinPoint) throws Throwable {
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    System.out.println("@Around：执行目标方法之前...");
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    Object obj= proceedingJoinPoint.proceed();
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    System.out.println("@Around：执行目标方法之后...");
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    System.out.println("@Around：被织入的目标对象为：" + proceedingJoinPoint.getTarget());
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    System.out.println( "@Around：原返回值：" + obj + "，这是返回结果的后缀");
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    return obj;
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    }
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    @AfterThrowing("controllerAspect()")
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    public void AfterThrowing(){
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    System.out.println("异常通知....");
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    }
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    @After("controllerAspect()")
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    public void After(JoinPoint point){
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    System.out.println("@After：模拟释放资源...");
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    System.out.println("@After：目标方法为：" +
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    point.getSignature().getDeclaringTypeName() +
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    "." + point.getSignature().getName());
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    System.out.println("@After：参数为：" + Arrays.toString(point.getArgs()));
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    System.out.println("@After：被织入的目标对象为：" + point.getTarget());
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    }
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    @AfterReturning("controllerAspect()")
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    public void AfterReturning(JoinPoint point){
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    System.out.println("@AfterReturning：模拟日志记录功能...");
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    System.out.println("@AfterReturning：目标方法为：" +
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    point.getSignature().getDeclaringTypeName() +
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    "." + point.getSignature().getName());
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    System.out.println("@AfterReturning：参数为：" +
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    Arrays.toString(point.getArgs()));
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    System.out.println("@AfterReturning：返回值为：" );
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    System.out.println("@AfterReturning：被织入的目标对象为：" + point.getTarget());
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    }
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    }

  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