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Categories / C# Tutorial / Network

 

Tcp server

using System; using System.IO; using System.Net; using System.Net.Sockets; using System.Text; class MainClass {    public static void Main()    {       string data;       IPEndPoint ip = new IPEndPoint(IPAddress.Any, 9999);       Socket socket = new Socket(AddressFamily.InterNetwork,SocketType.Stream, ProtocolType.Tcp);       socket.Bind(ip);       socket.Listen(10);       Socket client = socket.Accept();       IPEndPoint newclient = (IPEndPoint)client.RemoteEndPoint;       Console.WriteLine("Connected with {0} at port {1}",newclient.Address, newclient.Port);       NetworkStream ns = new NetworkStream(client);       StreamReader sr = new StreamReader(ns);       StreamWriter sw = new StreamWriter(ns);       string welcome = "Welcome";       sw.WriteLine(welcome);       sw.Flush();       while(true)       {          data = sr.ReadLine();          Console.WriteLine(data);          sw.WriteLine(data);          sw.Flush();       }       Console.WriteLine("Disconnected from {0}", newclient.Address);       sw.Close();       sr.Close();       ns.Close();     } }