asp.net mvc为每个页面添加页面执行时间统计_C#

asp.net mvc为每个页面添加页面执行时间统计，这段代码自定义一个httpModule类，可以对所有页面进行执行时间统计，统计结果输出到header，你执行完页面查看header就可以看到有一个times的键值，就是执行时间，单位为毫秒
转载请注明出处：http://www.75271.com/codes/csharp/6235

定义httpModule的类

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
namespace MicroBlog.Web.Base
{
    public class TimeHttpModule : IHttpModule
    {
        private DateTime starttime;
        public void Init(HttpApplication application)//实现IHttpModules中的Init事件 
        {
            //订阅两个事件 
            application.BeginRequest += new EventHandler(application_BeginRequest);
            application.EndRequest += new EventHandler(application_EndRequest);
        }
        private void application_BeginRequest(object sender, EventArgs e)
        {
            //object sender是BeginRequest传递过来的对象 
            //里面存储的就是HttpApplication实例 
            //HttpApplication实例里包含HttpContext属性 
            starttime = DateTime.Now;
        }
        private void application_EndRequest(object sender, EventArgs e)
        {
            DateTime endtime = DateTime.Now;
            HttpApplication application = (HttpApplication)sender;
            HttpContext context = application.Context;
            var ms = (endtime - starttime).Milliseconds;
            context.Response.Headers.Add("times", string.Format("{0}ms",ms.ToString()));
        }
        //必须实现dispose接口 
        public void Dispose() { }
    } 
    
}

在根目录下的web.config添加以下内容

  <system.web>
 <httpModules>
      <add name="TimeHttpModule" type="MicroBlog.Web.Base.TimeHttpModule"/>
    </httpModules>
  </system.web>
<system.webServer>
    <modules runAllManagedModulesForAllRequests="true">
        <remove name="TimeHttpModule" />
        <add name="TimeHttpModule" type="MicroBlog.Web.Base.TimeHttpModule" />
    </modules>
</system.webServer>

上面两处都需要添加