利用IHttpHandler计算页面的执行时间

使用自定义的PageHandler处理所有的aspx页面 获取页面的执行时间

using System;
using System.Web;
using System.Web.UI;
using System.Web.SessionState;

namespace Cuyahoga.Web.HttpHandlers
{
/// <summary>
/// This class handles all aspx page requests for Cuyahoga.
/// </summary>
public class PageHandler : IHttpHandler, IRequiresSessionState
{
#region IHttpHandler Members
/// <summary>
/// Process the aspx request. This means (eventually) rewriting the url and registering the page
/// in the container.
/// </summary>
/// <param name="context"></param>
public void ProcessRequest(HttpContext context)
{
string rawUrl = context.Request.RawUrl;
DateTime startTime = DateTime.Now;
// Obtain the handler for the current page
string aspxPagePath = rawUrl.Substring(0, rawUrl.IndexOf(".aspx") + 5);
IHttpHandler handler = PageParser.GetCompiledPageInstance(aspxPagePath, null, context);

// Process the page just like any other aspx page
handler.ProcessRequest(context);
TimeSpan duration = DateTime.Now - startTime;
context.Response.Write(String.Format("Request finshed. Total duration: {0} ms.",
duration.Milliseconds));
}

/// <summary>
///
/// </summary>
public bool IsReusable
{
get { return true; }
}
#endregion
}
}

webconfig中注册HttpHandler

<httpHandlers>
<add verb="*" path="*.aspx"
type="Cuyahoga.Web.HttpHandlers.PageHandler,Cuyahoga.Web" />
</httpHandlers>