C# 获取客户端IP

public static string GetRealIP()

{

string ip;

try

{

HttpRequest request = HttpContext.Current.Request;

if (request.ServerVariables["HTTP_VIA"] != null)

{

ip = request.ServerVariables["HTTP_X_FORWARDED_FOR"].ToString().Split(',')[0].Trim();

}

else

{

ip = request.UserHostAddress;

}

}

catch (Exception e)

{

throw e;

}

return ip;

}

public static string GetViaIP()

{

string viaIp = null;

try

{

HttpRequest request = HttpContext.Current.Request;

if (request.ServerVariables["HTTP_VIA"] != null)

{

viaIp = request.UserHostAddress;

}

}

catch (Exception e)

{

throw e;

}

return viaIp;

}