asp.net C#使用UdpClient監聽連接埠代碼

1.伺服器端

代碼如下

複製代碼

using System; using System.Net; using System.Net.Sockets; using System.Text; namespace ConsoleApplication1 {     class Program     {         static void Main(string[] args)         {             //監聽10086連接埠             Server(10086);         }         /// <summary>         /// 伺服器端         /// </summary>         /// <param name="port"></param>         static void Server(int port)         {             try             {                 while (true)                 {                     UdpClient udpclient = new UdpClient(port);                     IPEndPoint ipendpoint = new IPEndPoint(IPAddress.Any, port);                     byte[] bytes = udpclient.Receive(ref ipendpoint); //停在這等待資料                     string data = Encoding.Default.GetString(bytes, 0, bytes.Length);                     udpclient.Close();                     Console.WriteLine("{0:HH:mm:ss}從{1}發來資料：{2}", DateTime.Now, ipendpoint.Address, data);                 }             }             catch (Exception ex)             {                 Console.WriteLine("{0:HH:mm:ss}->{1}", DateTime.Now, ex.Message);             }         }     } }

2.用戶端

代碼如下

複製代碼

using System; using System.Net; using System.Net.Sockets; using System.Text; namespace ConsoleApplication1 {     class Program     {         static void Main(string[] args)         {             //發送資料             Client("42.121.105.222", 10086, "mzwu.com");         }         /// <summary>         /// 用戶端         /// </summary>         /// <param name="ip"></param>         /// <param name="port"></param>         /// <param name="message"></param>         static void Client(string ip, int port, string message)         {             try             {                 Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);                 IPEndPoint ipendpoint = new IPEndPoint(IPAddress.Parse(ip), port);                 byte[] data = Encoding.Default.GetBytes(message);                 socket.SendTo(data, ipendpoint);                 socket.Close();             }             catch (Exception ex)             {                 Console.WriteLine("{0:HH:mm:ss}->{1}", DateTime.Now, ex.Message);                 Console.ReadKey();             }         }     } }