csharp 服务器的IP地址

Posted 2021-05-12

public static string HostIPAddress
{
    get
    {
        if (HttpContext.Current.Application["HostIPAddress"] == null)
        {
            try
            {
                IPHostEntry ipHostInfo = Dns.GetHostEntry(Dns.GetHostName());

                foreach (IPAddress address in ipHostInfo.AddressList)
                {
                    if (address.AddressFamily == AddressFamily.InterNetwork)
                    {
                        HttpContext.Current.Application["HostIPAddress"] = address.ToString();
                        break;
                    }
                }
            }
            catch (Exception ex)
            {
                HttpContext.Current.Application["HostIPAddress"] = "-";
            }
        }

        return HttpContext.Current.Application["HostIPAddress"] as string;
    }
}