mvc filter 的用法

1、建个类在model里面名字随便

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using RHRSP.Web.Controllers.Common;namespace RHRSP.Web.Models
{public class DemoActionAttributeFilter : ActionFilterAttribute{public string Message { get; set; }public override void OnActionExecuted(ActionExecutedContext filterContext){ //在Action执行之后执行 输出到输出流中文字：After Action Excute xxx// filterContext.HttpContext.Response.Write(@"<br />After Action Excute" + "\t " + Message);//  base.OnActionExecuted(filterContext);}public override void OnActionExecuting(ActionExecutingContext filterContext){ //在Action执行前执行//filterContext.HttpContext.Response.Write(@"<br />Before Action Excute" + "\t " + Message);//base.OnActionExecuting(filterContext);}public override void OnResultExecuted(ResultExecutedContext filterContext){ //在Result执行之后 // filterContext.HttpContext.Response.Write(@"<br />After ViewResult Excute" + "\t " + Message);// base.OnResultExecuted(filterContext);              }public override void OnResultExecuting(ResultExecutingContext filterContext){ //在Result执行之前// filterContext.HttpContext.Response.Write(@"<br />Before ViewResult Excute" + "\t " + Message);// base.OnResultExecuting(filterContext);}}
}

2、要在哪个controller触发。就把该filter特性写在上面，如：

 [DemoActionAttributeFilter(Message = "action")]public class IndexController : Controller{

3、这样就可以用了，调用action前，后，调用result前，后。顺序把注释去掉就可以实验了