using System.Net.NetworkInformation;
using System.Net.Sockets;

namespace formula_manage.UserClass
{
    public class get_local_ip_address
    {
        public static string getLocalIPAddressWithNetworkInterface(NetworkInterfaceType _type)//获取本机ip并以字符串方式返回
        {
            string output = "";
            foreach (NetworkInterface item in NetworkInterface.GetAllNetworkInterfaces())
            {
                if (item.NetworkInterfaceType == _type && item.OperationalStatus == OperationalStatus.Up)
                {
                    foreach (UnicastIPAddressInformation ip in item.GetIPProperties().UnicastAddresses)
                    {
                        if (ip.Address.AddressFamily == AddressFamily.InterNetwork)
                        {
                            output = ip.Address.ToString();
                        }
                    }
                }
            }
            return output;
        }

        public static string IP_Address()
        {
            string ip;

            ip = getLocalIPAddressWithNetworkInterface(NetworkInterfaceType.Ethernet);
            if (ip == "") ip = getLocalIPAddressWithNetworkInterface(NetworkInterfaceType.Wireless80211);
            if (ip == "") ip = getLocalIPAddressWithNetworkInterface(NetworkInterfaceType.Ppp);
            if (ip == "") ip = getLocalIPAddressWithNetworkInterface(NetworkInterfaceType.Wwanpp);
            if (ip == "") ip = getLocalIPAddressWithNetworkInterface(NetworkInterfaceType.TokenRing);
            if (ip == "") ip = getLocalIPAddressWithNetworkInterface(NetworkInterfaceType.Fddi);
            if (ip == "") ip = getLocalIPAddressWithNetworkInterface(NetworkInterfaceType.GenericModem);
            if (ip == "") ip = getLocalIPAddressWithNetworkInterface(NetworkInterfaceType.IPOverAtm);
            if (ip == "") ip = getLocalIPAddressWithNetworkInterface(NetworkInterfaceType.Tunnel);
            if (ip == "") ip = getLocalIPAddressWithNetworkInterface(NetworkInterfaceType.Unknown);

            if (ip == "") ip = "127.0.0.1";
            return ip;
        }
    }
}