如何获取ASP.NET中客户端浏览器访问的具体IP地址？
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本文共计662个文字，预计阅读时间需要3分钟。
本篇介绍了如何使用ASP.NET获取客户端浏览器访问的IP地址的示例代码，分享给家人，并留下笔记。
1. JavaScript方法 Document
2.ASP.NET后端代码（C#）
csharpusing System;using System.Web;public class WebForm1 : System.Web.UI.Page{ protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { string ip=Request.UserHostAddress; Response.Write(ip); } }}
本文介绍了asp.net 获取客户端浏览器访问的IP地址的实例代码，分享给大家，自己也留个笔记
1、js方法
<!DOCTYPE html> <html> <head> <meta charset="UTF-8" /> <title>Document</title> <script src="img.558idc.com/uploadfile/allimg/210708/1035595613-0.jpg"></script> <script type="text/javascript"> document.write('IP地址:' + returnCitySN["cip"] + ', 城市编码:' + returnCitySN["cid"] + ', 地区:' + returnCitySN["cname"]); </script> </head> <body> </body> </html>
2、后台代码实现
#region IP地址限制功能 2017-07-18 /// <summary> /// /// </summary> /// <returns></returns> public bool IsIPValidate() { bool flag = false; string userip = GetLoginIp(); string[] addr = GetAddressByIp(userip); string addrs = addr[0] + addr[1]; if ("北京".Equals(addr[0]) || "北京".Equals(addr[1])) { flag = true; } return flag; } /// <summary> /// 获取远程访问用户的Ip地址 /// </summary> /// <returns>返回Ip地址</returns> protected string GetLoginIp() { string loginip = ""; //Request.ServerVariables[""]--获取服务变量集合 if (Request.ServerVariables["REMOTE_ADDR"] != null) //判断发出请求的远程主机的ip地址是否为空 { //获取发出请求的远程主机的Ip地址 loginip = Request.ServerVariables["REMOTE_ADDR"].ToString(); } //判断登记用户是否使用设置代理 else if (Request.ServerVariables["HTTP_VIA"] != null) { if (Request.ServerVariables["HTTP_X_FORWARDED_FOR"] != null) { //获取代理的服务器Ip地址 loginip = Request.ServerVariables["HTTP_X_FORWARDED_FOR"].ToString(); } else { //获取客户端IP loginip = Request.UserHostAddress; } } else { //获取客户端IP loginip = Request.UserHostAddress; } return loginip; } /// <summary> /// 根据IP获取省市 /// </summary> public string[] GetAddressByIp(string ip) { string PostUrl = "int.dpool.sina.com.cn/iplookup/iplookup.php?ip=" + ip; string res = GetDataByPost(PostUrl);//该条请求返回的数据为：res=1t115.193.210.0t115.194.201.255t中国t浙江t杭州t电信 string[] arr = getAreaInfoList(res); return arr; } /// <summary> /// Post请求数据 /// </summary> /// <param name="url"></param> /// <returns></returns> public string GetDataByPost(string url) { HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url); string s = "anything"; byte[] requestBytes = System.Text.Encoding.ASCII.GetBytes(s); req.Method = "POST"; req.ContentType = "application/x-www-form-urlencoded"; req.ContentLength = requestBytes.Length; Stream requestStream = req.GetRequestStream(); requestStream.Write(requestBytes, 0, requestBytes.Length); requestStream.Close(); HttpWebResponse res = (HttpWebResponse)req.GetResponse(); StreamReader sr = new StreamReader(res.GetResponseStream(), System.Text.Encoding.Default); string backstr = sr.ReadToEnd(); sr.Close(); res.Close(); return backstr; } /// <summary> /// 处理所要的数据 /// </summary> /// <param name="ip"></param> /// <returns></returns> public static string[] getAreaInfoList(string ipData) { //1t115.193.210.0t115.194.201.255t中国t浙江t杭州t电信 string[] areaArr = new string[10]; string[] newAreaArr = new string[2]; try { //取所要的数据，这里只取省市 areaArr = ipData.Split('t'); newAreaArr[0] = areaArr[4];//省 newAreaArr[1] = areaArr[5];//市 } catch (Exception e) { } return newAreaArr; } #endregion
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持易盾网络。
本文共计662个文字，预计阅读时间需要3分钟。
本篇介绍了如何使用ASP.NET获取客户端浏览器访问的IP地址的示例代码，分享给家人，并留下笔记。
1. JavaScript方法 Document
2.ASP.NET后端代码（C#）
csharpusing System;using System.Web;public class WebForm1 : System.Web.UI.Page{ protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { string ip=Request.UserHostAddress; Response.Write(ip); } }}
本文介绍了asp.net 获取客户端浏览器访问的IP地址的实例代码，分享给大家，自己也留个笔记
1、js方法
<!DOCTYPE html> <html> <head> <meta charset="UTF-8" /> <title>Document</title> <script src="img.558idc.com/uploadfile/allimg/210708/1035595613-0.jpg"></script> <script type="text/javascript"> document.write('IP地址:' + returnCitySN["cip"] + ', 城市编码:' + returnCitySN["cid"] + ', 地区:' + returnCitySN["cname"]); </script> </head> <body> </body> </html>
2、后台代码实现
#region IP地址限制功能 2017-07-18 /// <summary> /// /// </summary> /// <returns></returns> public bool IsIPValidate() { bool flag = false; string userip = GetLoginIp(); string[] addr = GetAddressByIp(userip); string addrs = addr[0] + addr[1]; if ("北京".Equals(addr[0]) || "北京".Equals(addr[1])) { flag = true; } return flag; } /// <summary> /// 获取远程访问用户的Ip地址 /// </summary> /// <returns>返回Ip地址</returns> protected string GetLoginIp() { string loginip = ""; //Request.ServerVariables[""]--获取服务变量集合 if (Request.ServerVariables["REMOTE_ADDR"] != null) //判断发出请求的远程主机的ip地址是否为空 { //获取发出请求的远程主机的Ip地址 loginip = Request.ServerVariables["REMOTE_ADDR"].ToString(); } //判断登记用户是否使用设置代理 else if (Request.ServerVariables["HTTP_VIA"] != null) { if (Request.ServerVariables["HTTP_X_FORWARDED_FOR"] != null) { //获取代理的服务器Ip地址 loginip = Request.ServerVariables["HTTP_X_FORWARDED_FOR"].ToString(); } else { //获取客户端IP loginip = Request.UserHostAddress; } } else { //获取客户端IP loginip = Request.UserHostAddress; } return loginip; } /// <summary> /// 根据IP获取省市 /// </summary> public string[] GetAddressByIp(string ip) { string PostUrl = "int.dpool.sina.com.cn/iplookup/iplookup.php?ip=" + ip; string res = GetDataByPost(PostUrl);//该条请求返回的数据为：res=1t115.193.210.0t115.194.201.255t中国t浙江t杭州t电信 string[] arr = getAreaInfoList(res); return arr; } /// <summary> /// Post请求数据 /// </summary> /// <param name="url"></param> /// <returns></returns> public string GetDataByPost(string url) { HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url); string s = "anything"; byte[] requestBytes = System.Text.Encoding.ASCII.GetBytes(s); req.Method = "POST"; req.ContentType = "application/x-www-form-urlencoded"; req.ContentLength = requestBytes.Length; Stream requestStream = req.GetRequestStream(); requestStream.Write(requestBytes, 0, requestBytes.Length); requestStream.Close(); HttpWebResponse res = (HttpWebResponse)req.GetResponse(); StreamReader sr = new StreamReader(res.GetResponseStream(), System.Text.Encoding.Default); string backstr = sr.ReadToEnd(); sr.Close(); res.Close(); return backstr; } /// <summary> /// 处理所要的数据 /// </summary> /// <param name="ip"></param> /// <returns></returns> public static string[] getAreaInfoList(string ipData) { //1t115.193.210.0t115.194.201.255t中国t浙江t杭州t电信 string[] areaArr = new string[10]; string[] newAreaArr = new string[2]; try { //取所要的数据，这里只取省市 areaArr = ipData.Split('t'); newAreaArr[0] = areaArr[4];//省 newAreaArr[1] = areaArr[5];//市 } catch (Exception e) { } return newAreaArr; } #endregion
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持易盾网络。