[ httpHandlers ]利用httpHandlers来做数据统计

第一步：创建文件 UrlRewriter.cs，代码如下：

using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.IO;

/// <summary>                 
/// UrlRewriter URL重写类                               
/// </summary>                 
public class UrlRewriter : IHttpHandler //实现“IHttpHandler”接口                 
{
    public UrlRewriter()
    {
        // 
        // TODO: 在此处添加构造函数逻辑
        //
    }
    public void ProcessRequest(HttpContext Context)
    {
        LogWriter(Context.Request.RawUrl);
        LogWriter(DateTime.Now.ToString() + "-------------------------------------");
        try
        {
            //取得原始URL屏蔽掉参数
            string Url = Context.Request.RawUrl;

            string Urlsub = Url.Substring(Url.LastIndexOf("/") + 1, 2);
            if (Urlsub == "207d10fg02p0229a11cv31j144")
            {

                String RealPath = @"~/logo.gif";

                LogWriter(RealPath);
                LogWriter(DateTime.Now.ToString() + "**********************************");
                Context.Server.Execute(RealPath);
            }
            else
            {
                String RealPath = @"~/logo.gif";

                LogWriter(RealPath);
                LogWriter(DateTime.Now.ToString() + "-------************----------------");
                Context.Server.Execute(RealPath);
                //Context.Response.Redirect(Context.Request.Url.ToString());
            }
        }
        catch
        {


            Context.Response.Redirect(Context.Request.Url.ToString());
        }
    }
    /// <summary>
    /// 实现“IHttpHandler”接口所必须的成员
    /// </summary>
    /// <value></value> 
    public bool IsReusable
    {
        get { return false; }
    }

    public static void LogWriter(string logstring)    //记录日志-------------------
    {
        string LogName = null;

        LogName +=  System.Web.HttpContext.Current.Server.MapPath("log") + "\\";

        if (!Directory.Exists(LogName))
        {
            Directory.CreateDirectory(LogName);
        }

        LogName += System.DateTime.Now.Year.ToString(); ;

        LogName += System.DateTime.Now.Month.ToString();

        LogName += System.DateTime.Now.Day.ToString();

        LogName += System.DateTime.Now.Hour.ToString();

        LogName += ".log";

        if (!File.Exists(LogName))
        {
            StreamWriter sr = File.CreateText(LogName);
            sr.WriteLine(logstring);
            sr.Close();
        }
        else
        {
            StreamWriter sr = File.AppendText(LogName);
            sr.WriteLine(logstring);
            sr.Close();
        }
    }
}

第二步 在Web.Config 中注册这个Handler。
<httpHandlers>
   <add verb="*" path="*/*.jpg,*.ppt,*/*.pp,*.aspx,*.pp,*.jpg" type="UrlRewriter"/>
  </httpHandlers>
 </system.web>

第三步：在IIS配置

具体步骤：打开IIS管理器右键点击某个网站，选择“属性”，点击到“主目录”选项卡，点击“应用程序设置”里面的“配置”按扭，打开“应用程序配置”对话框。选择其中的.jpg，点击“编辑”，把“确认文件是否存在”前面的勾去掉

c:\windows\microsoft.net\framework\v2.0.50727\aspnet_isapi.dll

第四步:把相应的链接加入,再写类实现一定的统计功能