AOP 的 JoinPoint 参数方法详解

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.jueee.test.service.UserService.findById(int)

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

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

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();
HttpSession session = request.getSession();