MVC 过滤器 ActionFilterAttribute

浏览数：62 / 时间：2015年06月09日

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);
}
}
}