C#获取IP地址

获得公网IP

private string GetClientIP()
{
string result = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
if (null == result || result == String.Empty)
{
result = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];
}

if (null == result || result == String.Empty)
{
result = HttpContext.Current.Request.UserHostAddress;
}
return result;
}

 

获得局域网IP：

string ipAddr = Dns.GetHostEntry(Dns.GetHostName()).AddressList[2].ToString();