AspectJ后置增强 (AfterReturning与After注解的不同)

 public String  find(){
        System.out.println("查询");

        return "hello";
    }

@AfterReturning(value = "execution(* com.snow.demo7.ProductDao.*(..))",returning="result")
public  void  after(JoinPoint joinPoint,Object result ){
    System.out.println("后置通知==========================="+joinPoint);
    System.out.println(result);

}

@After(value = "execution(* com.snow.demo7.ProductDao.*(..))")
public  void  after(JoinPoint joinPoint){
    System.out.println("后置通知==========================="+joinPoint);
   

}

AfterReturning与After注解的不同前面一个可以拿到方法的返回值