IP地址工具类
/// <summary> /// 获取客户端IP地址 /// </summary> /// <returns></returns> public static string GetHostAddress() { string userHostAddress = HttpContext.Current.Request.UserHostAddress; if (string.IsNullOrEmpty(userHostAddress)) { userHostAddress = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"]; } //最后判断获取是否成功,并检查IP地址的格式(检查其格式非常重要) if (!string.IsNullOrEmpty(userHostAddress) && IsIP(userHostAddress)) { return userHostAddress; } return "127.0.0.1"; } public static bool IsIP(string ip) { return System.Text.RegularExpressions.Regex.IsMatch(ip, @"^((2[0-4]\d|25[0-5]|[01]?\d\d?)\.){3}(2[0-4]\d|25[0-5]|[01]?\d\d?)$"); }