This is a simple implementation of a TCP client server relationship. In this samle, the TCP server listens to a port and if any client is trying to connect to the server , the server accepts and reads the message from the socket.
TCP Server
TCP Client
TCP Server
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Net; using System.Net.Sockets; /** * @Author : JITHINRAJ.P * * * */ namespace TCP_server { class Program { static void Main(string[] args) { try { IPAddress ipAd = IPAddress.Parse("127.0.0.1"); TcpListener myList = new TcpListener(ipAd, 5150); myList.Start(); Console.WriteLine("The server is running at port 8001..."); Console.WriteLine("The local End point is :" + myList.LocalEndpoint); Console.WriteLine("Waiting for a connection....."); while (true) { Socket s = myList.AcceptSocket(); Console.WriteLine("Connection accepted from " + s.RemoteEndPoint); byte[] b = new byte[100]; while (true) { int k = s.Receive(b); Console.WriteLine("Recieved..."); for (int i = 0; i < k; i++) Console.Write(Convert.ToChar(b[i])); ASCIIEncoding asen = new ASCIIEncoding(); s.Send(asen.GetBytes("The string was recieved by the server.")); Console.WriteLine("\nSent Acknowledgement"); //s.Close(); if (k == 0) { s.Close(); break; } } } myList.Stop(); Console.ReadLine(); } catch (Exception e) { } } } }
TCP Client
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Net; using System.Net.Sockets; using System.IO; /** * @Author : JITHINRAJ.P * * * */ namespace TCP_Client { class Program { private static TcpClient client; static void Main(string[] args) { client = new TcpClient(); Console.WriteLine("Connecting to server"); client.Connect("127.0.0.1" , 5150); Console.WriteLine("Connected"); Console.WriteLine("enter The string to be transmitted"); String textToTransmit = Console.ReadLine(); Stream tcpStream = client.GetStream(); ASCIIEncoding asen = new ASCIIEncoding(); byte[] ba = asen.GetBytes(textToTransmit); Console.WriteLine("Transmitting....."); tcpStream.Write(ba, 0, ba.Length); byte[] bb = new byte[100]; int k = tcpStream.Read(bb, 0, 100); for (int i = 0; i < k; i++) Console.Write(Convert.ToChar(bb[i])); client.Close(); } } }
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