利用IHttpHandler计算页面的执行时间-优快云博客

本文介绍了一种通过自定义PageHandler来监控并记录所有ASPX页面执行时间的方法。该方法通过实现IHttpHandler接口并在HTTP请求管道中拦截所有ASPX页面请求，计算页面处理所需的时间，并将执行时长返回给客户端。此外，还展示了如何在web.config文件中配置此自定义HttpHandler。

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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