本文介紹的程序主要實現根據IP地址或地址段或IP所在城市進行自動跳轉到指定頁面的功能,需要的朋友可以參考下
對于大中型網站，為了增強用戶體驗，往往需要根據不同城市站點的用戶推送或展現相應個性化的內容，如對于一些大型門戶網站的新聞會有城市站點的功能，如果沒有設置相應的城市站點，默認就是根據用戶訪問的IP地址的所在城市自動設置。本文主要通過自定義擴展IHttpModule接口，考慮到性能IP數據庫主要采用QQwry純真IP數據庫，主要實現根據IP地址或地址段或IP所在城市進行自動跳轉到指定頁面的功能(支持Nginx作為前端反向代理服務器），該WebsiteSkip組件核心代碼如下： 代碼如下:using System;using System.Collections.Generic;using System.Text;using System.Web;using System.Xml;using System.IO;using System.Net;using System.Text.RegularExpressions;using NetOpen_System.Component.QQWry; namespace NetOpen_System.Component{ public sealed class WebsiteSkipHttpModule : IHttpModule { #region IHttpModule 成員 public void Dispose() { } public void Init(HttpApplication context) { context.BeginRequest += new EventHandler(context_BeginRequest); } #endregion void context_BeginRequest(object sender, EventArgs e) { try { //if (HttpContext.Current.Request.IsLocal)//忽略本地計算機請求 // return; //string ip = HttpContext.Current.Request.UserHostAddress; //string ip = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"].ToString(); string ip = string.Empty; if (HttpContext.Current.Request.ServerVariables["HTTP_X_REAL_IP"] != null) { ip = HttpContext.Current.Request.ServerVariables["HTTP_X_REAL_IP"].ToString(); } else if (HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"] != null) { ip = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"].ToString(); } else if (HttpContext.Current.Request.ServerVariables["HTTP_VIA"] != null) { ip = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"].ToString(); } else { ip = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"].ToString(); } QQWryLocator qqWry = new QQWryLocator(HttpContext.Current.Server.MapPath(@"~IpDataqqwry.dat")); IPLocation ipaddress = qqWry.Query(ip); //查詢一個IP地址 string ls_city = ipaddress.Country; string ls_urlfrom = string.Empty; string ls_urlto = string.Empty; string ls_url = HttpContext.Current.Request.Url.AbsoluteUri; string ls_useragentkeyword = string.Empty; ExcludeUserAgentMatchEngine Em = WebsiteSkipConfiguration.GetConfig().ExcludeUserAgents; if(Em.ExcludeUserAgentList.Count > 0) { foreach (ExcludeUserAgent ua in Em.ExcludeUserAgentList) { if (HttpContext.Current.Request.UserAgent.Contains(ua.keyword)) { return; } } } UrlMatchEngine pu = WebsiteSkipConfiguration.GetConfig().SkipedUrls; if (pu.UrlList.Count > 0) { foreach (SkipedUrl sk in pu.UrlList) { if (ls_city.Contains(sk.IpCity)) { if (sk.UrlFrom.Length > 0) { if (sk.UrlFrom.Contains(ls_url) && !ls_url.Contains(sk.OutKey新聞熱點
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