25
03/2016
C# 获得客户端ip
参考：http://www.cnblogs.com/stay-foolish/archive/2012/05/01/2475071.html
public static string GetHostAddress()
{
string userHostAddress = System.Web.HttpContext.Current.Request.UserHostAddress;
if (string.IsNullOrEmpty(userHostAddress))
{
userHostAddress = System.Web.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";
}
/// <summary>
/// 检查IP地址格式
/// </summary>
/// <param name="ip"></param>
/// <returns></returns>
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?)$");
}转载请注明：康瑞部落 » C# 获得客户端ip
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