Spring AOP获取方法的参数名称和参数值

aop配置: <aop:aspectj-autoproxy expose-proxy="true" />

 

@Before(value = "execution(* com..xxxxx.web..*.*(..))")
    public void methodBefore(JoinPoint joinPoint)  {
        try {
            //类名
            String clazzName = joinPoint.getTarget().getClass().getName();
            MethodSignature methodSignature = (MethodSignature) joinPoint.getSignature();
            //方法名
            String methodName = methodSignature.getName();
            //参数名数组
            String[] parameters =  methodSignature.getParameterNames();
            //参数值
            Object[] args = joinPoint.getArgs();

            //获取参数名对应数组下标
            int paramIndex = ArrayUtils.indexOf(parameters,"page");
            Page<T> page = null ;
            if (paramIndex != -1){
                //参数值与参数名下标一致，获取分页page类
                 page =( Page<T>) args[paramIndex];
            }else{
                return ;
            }

            //请求原始值
            int pageSize = page.getPageSize();
            //配置最大值
            int maxPageSize = config.getMaxPageSize();
            //配置默认值
            int defaultPageSize = config.getDefaultPageSize();
            //请求值超过安全阈值，拦截处理
            if (pageSize > maxPageSize) {
                logger.warn("==pageSize参数异常=="+clazzName+"-"+methodName+":"+"pageSize大于配置最大值:"+maxPageSize+"！将设置默认值:"+defaultPageSize);
                page.setPageSize(defaultPageSize);
            }
        }catch (Exception ex){
            logger.error("分页配置发生异常！",ex);
        }
    }