asp.net C# 获取本机所有ip地址

Posted 2021-11-19 Xyang

 List<string> ipv4_ips = GetLocalIpAddress("InterNetwork");

 

/// <summary>
        /// 获取本机所有ip地址
        /// </summary>
        /// <param name="netType">"InterNetwork":ipv4地址，"InterNetworkV6":ipv6地址</param>
        /// <returns>ip地址集合</returns>
        public static List<string> GetLocalIpAddress(string netType)
        {
            string hostName = Dns.GetHostName();                    //获取主机名称
            IPAddress[] addresses = Dns.GetHostAddresses(hostName); //解析主机IP地址

            List<string> IPList = new List<string>();
            if (netType == string.Empty)
            {
                for (int i = 0; i < addresses.Length; i++)
                {
                    IPList.Add(addresses[i].ToString());
                }
            }
            else
            {
                //AddressFamily.InterNetwork表示此IP为IPv4,
                //AddressFamily.InterNetworkV6表示此地址为IPv6类型
                for (int i = 0; i < addresses.Length; i++)
                {
                    if (addresses[i].AddressFamily.ToString() == netType)
                    {
                        IPList.Add(addresses[i].ToString());
                    }
                }
            }
            return IPList;
        }