当前文件： BlockIP/MyHttpModule.cs[1K，2009-6-12 11:33:54]，打开代码结构图

		            
 1using System;
 2using System.Data;
 3using System.Configuration;
 4using System.Web;
 5using System.Web.Security;
 6using System.Web.UI;
 7using System.Web.UI.WebControls;
 8using System.Web.UI.WebControls.WebParts;
 9using System.Web.UI.HtmlControls;
10using System.Collections;
11//该源码下载自www.51aspx.com(５１ａｓｐｘ．ｃｏｍ)
12
13namespace BlockIP
14...{
15    public class MyHttpModule : IHttpModule
16    ...{
17        public void Init(HttpApplication app)
18        ...{
19            //接收请求开始处理
20            app.BeginRequest += new EventHandler(app_BeginRequest);
21        }
22
23        void app_BeginRequest(object sender, EventArgs e)
24        ...{
25            Hashtable hash = (Hashtable)HttpContext.Current.Application["blockip"];
26            if (hash != null && hash.Contains(HttpContext.Current.Request.UserHostAddress))
27            ...{
28                HttpContext.Current.Response.Write("来源IP["+HttpContext.Current.Request.UserHostAddress.ToString()+"]不在允许访问之内<br><br>请与管理员联系解决！");//输出提示信息。
29                HttpContext.Current.Response.End();//终止请求。
30            }
31            else
32            ...{ 
33                HttpContext.Current.Response.Write("恭喜，你的IP不在受限访问51aspx之列！");//输出提示信息。
34            
35            }
36        }
37
38        public void Dispose() ...{ }
39    }
40}
41