mvc拦截请求IHttpModule

 

代码:

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Diagnostics;namespace TestMVCRoute{ public class myMVCHttpHandler :IHttpModule { public void Dispose() { /* Not needed */ } public void Init(HttpApplication context) { context.BeginRequest += OnBeginRequest; context.EndRequest += OnEndRequest; context.PreSendRequestHeaders += OnHeaderSent; } public void OnHeaderSent(object sender, EventArgs e) { var httpApp = (HttpApplication)sender; httpApp.Context.Items["HeadersSent"] = true; } // Record the time of the begin request event. public void OnBeginRequest(Object sender, EventArgs e) { var httpApp = (HttpApplication)sender; if (httpApp.Request.Path.StartsWith("/media/")) return; var timer = new Stopwatch(); httpApp.Context.Items["Timer"] = timer; httpApp.Context.Items["HeadersSent"] = false; timer.Start(); } public void OnEndRequest(Object sender, EventArgs e) { var httpApp = (HttpApplication)sender; if (httpApp.Request.Path.StartsWith("/media/")) return; var timer = (Stopwatch)httpApp.Context.Items["Timer"]; if (timer != null) { timer.Stop(); if (!(bool)httpApp.Context.Items["HeadersSent"]) { httpApp.Context.Response.AppendHeader("ProcessTime", ((double)timer.ElapsedTicks / Stopwatch.Frequency) * 1000 + " ms."); } } httpApp.Context.Items.Remove("Timer"); httpApp.Context.Items.Remove("HeadersSent"); } }}

webconfig注册:

 <httpModules> <add name="myMVCHttpHandler" type="TestMVCRoute.myMVCHttpHandler"/> </httpModules>
</system.web>

或者节点:

<modules runAllManagedModulesForAllRequests="true"> <add name="myMVCHttpHandler" type="TestMVCRoute.myMVCHttpHandler" /> </modules></system.webServer>

ii6和ii7及以上注册节点结构不同需要注意,所以才贴出了两点。

 

改文章复制粘贴自:https://stackoverflow.com/questions/11726848/asp-net-mvc-4-intercept-all-incoming-requests

文章标题:ASP.NET MVC 4 intercept all incoming requests

不过前辈们建议,你最好分清你需要拦截的是什么请求,你的目的是什么,如果是在知情Action控制前拦截,那么你最好使用过滤器,而不是注册一个自定义的IHttpModule。

文章:msdn.microsoft.com/en-us/library/gg416513(VS.98).aspx 

 

或者也可以直接在Global.asax.cs文件中使用:

 protected void Application_BeginRequest(object sender, EventArgs e) { HttpContext.Current.Request.....; }

默认mvc的Global.asax.cs中没有Application_BeginRequest方法,但是自己复制粘贴过去会起作用,原理是什么还不清楚。

 

最建议的拦截mvc请求的方式还是用过滤器,

public class DebugActionFilter : System.Web.Mvc.ActionFilterAttribute{ public override void OnActionExecuting(ActionExecutingContext actionContext) { Debug.WriteLine(actionContext.RequestContext.HttpContext.Request); }}

 

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