Aop JoinPoint方法詳解

重要方法

        /*獲取參數的值數組*/
        Object[] args = point.getArgs();                                    //  [1] 參數的值

        /*獲取目標對象(被加強的對象)*/
        Object target = point.getTarget();

        /*獲取signature 該注解作用在方法上，強轉為 MethodSignature*/
        MethodSignature signature = (MethodSignature) point.getSignature();

        /*方法名*/
        String signatureName = signature.getName();                         //  findById

        /*參數名稱數組(與args參數值意義對應)*/
        String[] parameterNames = signature.getParameterNames();            //  [i] 參數名稱

        /*獲取執行的方法對應Method對象*/
        Method method = signature.getMethod();                              //  public void com.draymond.aop2.service.UserService.findById(int)

        /*獲取返回值類型*/
        Class returnType = signature.getReturnType();                       //  void

        /*獲取方法上的注解*/
        WebAnnotation webAnnotation = method.getDeclaredAnnotation(WebAnnotation.class);

 

常用的其他對象 request / response

 　　　　// 獲取request/response(ThreadLocal模式)
        RequestAttributes requestAttributes = RequestContextHolder.getRequestAttributes();
        ServletRequestAttributes servletRequestAttributes = (ServletRequestAttributes) requestAttributes;
        HttpServletRequest request = servletRequestAttributes.getRequest();
        HttpServletResponse response = servletRequestAttributes.getResponse();