MVC 过滤器 ActionFilterAttribute

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using 过滤器.Controllers;
 
namespace 过滤器.Filtes
{
    public class MyActionFiterAttribute : ActionFilterAttribute
    {
 
        /// <summary>
        /// Action过滤器 执行方法之前
        /// </summary>
        /// <param name="filterContext"></param>
        public override void OnActionExecuting(ActionExecutingContext filterContext)
        {
            //RouteData保存了当前请求的路由信息
            // filterContext.RouteData.Values["action"];
            // filterContext.RouteData.DataTokens["area"]; 获取区域名称
            if (filterContext.ActionDescriptor.IsDefined(typeof(MyActionFiterAttribute), false))//检查当前请求的action是否有贴MyActionFiterAttribute标签
            {
                //不执行Action方法，也不执行OnActionExecuted方法，会执行Result过滤器
                filterContext.Result = new ContentResult();//给当前请求设置返回结果，不会再继续执行当前的action
            }
            filterContext.HttpContext.Response.Write("哈哈哈哈哈~！！！OnActionExecuting");
            base.OnActionExecuting(filterContext);
        }
        //执行方法之后
        public override void OnActionExecuted(ActionExecutedContext filterContext)
        {
            filterContext.HttpContext.Response.Write("哈哈哈哈哈~！！！OnActionExecuted");
            base.OnActionExecuted(filterContext);
        }
        //Result过滤器
        public override void OnResultExecuted(ResultExecutedContext filterContext)
        {
            filterContext.HttpContext.Response.Write("哈哈哈哈哈~！！！OnResultExecuted");
            base.OnResultExecuted(filterContext);
        }
        public override void OnResultExecuting(ResultExecutingContext filterContext)
        {
            filterContext.HttpContext.Response.Write("哈哈哈哈哈~！！！OnResultExecuting");
            base.OnResultExecuting(filterContext);
        }
    }
}