Aop JoinPoint方法详解

重要方法

        /*获取参数的值数组*/
        Object[] args = point.getArgs();                                    //  [1] 参数的值

        /*获取目标对象(被加强的对象)*/
        Object target = point.getTarget();

        /*获取signature 该注解作用在方法上，强转为 MethodSignature*/
        MethodSignature signature = (MethodSignature) point.getSignature();

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

        /*参数名称数组(与args参数值意义对应)*/
        String[] parameterNames = signature.getParameterNames();            //  [i] 参数名称

        /*获取执行的方法对应Method对象*/
        Method method = signature.getMethod();                              //  public void com.draymond.aop2.service.UserService.findById(int)

        /*获取返回值类型*/
        Class returnType = signature.getReturnType();                       //  void

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

常用的其他对象 request / response

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