在aop切面中拿到方法和方法的注解

private Media getMethodAnnotation(ProceedingJoinPoint pjp)
            throws NoSuchFieldException, SecurityException, IllegalArgumentException, IllegalAccessException {
        MethodInvocationProceedingJoinPoint methodPjp = (MethodInvocationProceedingJoinPoint) pjp;
        Field field = methodPjp.getClass().getDeclaredField("methodInvocation");
        field.setAccessible(true);
        ProxyMethodInvocation invocation = (ProxyMethodInvocation) field.get(methodPjp);
        Media media = invocation.getMethod().getAnnotation(Media.class);
        return media;
    }

此处 Media 是自定义注解

 拿到方法

   Signature signature = pjp.getSignature();
   MethodSignature methodSignature = (MethodSignature) signature;
   Method targetMethod = methodSignature.getMethod();