MVC获取客户端IP地址方法

控制器代码如下：

public static class UrlIP
{#region Ip(客户端IP地址)/// <summary>/// 客户端IP地址/// </summary>public static string Ip(System.Web.HttpRequestBase request){var result = string.Empty;if (request != null){result = GetWebClientIp(request);}if (string.IsNullOrWhiteSpace(result)){result = GetLanIp();}return result;}/// <summary>/// 获取Web客户端的IP/// </summary>/// <returns></returns>private static string GetWebClientIp(System.Web.HttpRequestBase request){var ip = GetWebProxyRealIp(request) ?? GetWebRemoteIp(request);foreach (var hostAddress in Dns.GetHostAddresses(ip)){if (hostAddress.AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork){return hostAddress.ToString();}}return string.Empty;}/// <summary>/// 获取Web远程IP/// </summary>/// <returns></returns>private static string GetWebRemoteIp(System.Web.HttpRequestBase request){try{return request.ServerVariables["HTTP_X_FORWARDED_FOR"] ??request.ServerVariables["REMOTE_ADDR"] ?? "";}catch{return string.Empty;}}/// <summary>/// 获取Web代理真实IP/// </summary>/// <returns></returns>private static string GetWebProxyRealIp(System.Web.HttpRequestBase request){string ip = request.Headers.Get("x-forwarded-for");if (string.IsNullOrEmpty(ip) || string.Equals("unknown", ip, StringComparison.OrdinalIgnoreCase)){ip = request.Headers.Get("Proxy-Client-IP");}if (string.IsNullOrEmpty(ip) || string.Equals("unknown", ip, StringComparison.OrdinalIgnoreCase)){ip = request.Headers.Get("WL-Proxy-Client-IP");}if (string.IsNullOrEmpty(ip) || string.Equals("unknown", ip, StringComparison.OrdinalIgnoreCase)){ip = request.UserHostAddress;}if (string.IsNullOrEmpty(ip)){return string.Empty;}// 可能存在如下格式：X-Forwarded-For: client, proxy1, proxy2if (ip.Contains(", ")){// 如果存在多个反向代理，获得的IP是一个用逗号分隔的IP集合，取第一个// X-Forwarded-For: client  第一个string[] ips = ip.Split(new string[1] { ", " }, StringSplitOptions.RemoveEmptyEntries);var i = 0;for (i = 0; i < ips.Length; i++){if (ips[i] != ""){// 判断是否为内网IPif (false == IsInnerIp(ips[i])){IPAddress realIp;if (IPAddress.TryParse(ips[i], out realIp) && ips[i].Split('.').Length == 4){//合法IPreturn ips[i];}return "";}}}ip = ips[0];// 默认获取第一个IP地址}return ip;}/// <summary>/// 判断IP地址是否为内网IP地址/// </summary>/// <param name="ip">IP地址</param>/// <returns></returns>private static bool IsInnerIp(string ip){bool isInnerIp = false;ulong ipNum = Ip2Ulong(ip);/*** 私有IP* A类：10.0.0.0-10.255.255.255* B类：172.16.0.0-172.31.255.255* C类：192.168.0.0-192.168.255.255* 当然，还有127这个网段是环回地址*/ulong aBegin = Ip2Ulong("10.0.0.0");ulong aEnd = Ip2Ulong("10.255.255.255");ulong bBegin = Ip2Ulong("172.16.0.0");ulong bEnd = Ip2Ulong("10.31.255.255");ulong cBegin = Ip2Ulong("192.168.0.0");ulong cEnd = Ip2Ulong("192.168.255.255");isInnerIp = IsInner(ipNum, aBegin, aEnd) || IsInner(ipNum, bBegin, bEnd) || IsInner(ipNum, cBegin, cEnd) ||ip.Equals("127.0.0.1");return isInnerIp;}/// <summary>/// 将IP地址转换为Long型数字/// </summary>/// <param name="ip">IP地址</param>/// <returns></returns>private static ulong Ip2Ulong(string ip){byte[] bytes = IPAddress.Parse(ip).GetAddressBytes();ulong ret = 0;foreach (var b in bytes){ret <<= 8;ret |= b;}return ret;}/// <summary>/// 判断用户IP地址转换为Long型后是否在内网IP地址所在范围/// </summary>/// <param name="userIp">用户IP</param>/// <param name="begin">开始范围</param>/// <param name="end">结束范围</param>/// <returns></returns>private static bool IsInner(ulong userIp, ulong begin, ulong end){return (userIp >= begin) && (userIp <= end);}/// <summary>/// 获取局域网IP/// </summary>/// <returns></returns>private static string GetLanIp(){foreach (var hostAddress in Dns.GetHostAddresses(Dns.GetHostName())){if (hostAddress.AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork){return hostAddress.ToString();}}return string.Empty;}#endregion
}

调用

string Ip = UrlIP.Ip(Request);

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MVC获取客户端IP地址方法

控制器代码如下：

调用

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