C# TCP/IP Client Server example code.
Below is example code written in C# for a TCP/IP client and server. The TCP server uses what is called a Listener object, which listens for incoming connections. On the client side, the code is written to connect to a specific IP address at which point the server side makes a connection and both client and server can talk to each other. If your working in a DLL project in either Mono, Visual Studio or Sharp Develop, you can compiles this into an application library (DLL File).
Server Side Code:
using System;
using System.Net.Sockets;
public class AsynchIOServer
{
public static void Main()
{
TCPListener tcpListener = new TCPListener(10);
tcpListener.Start();
Socket socketForClient = tcpListener.Accept();
if (socketForClient.Connected)
{
Console.WriteLine("Client connected");
NetworkStream networkStream = new NetworkStream(socketForClient);
System.IO.StreamWriter streamWriter =
new System.IO.StreamWriter(networkStream);
System.IO.StreamReader streamReader =
new System.IO.StreamReader(networkStream);
string theString = "Sending";
streamWriter.WriteLine(theString);
Console.WriteLine(theString);
streamWriter.Flush();
theString = streamReader.ReadLine();
Console.WriteLine(theString);
streamReader.Close();
networkStream.Close();
streamWriter.Close();
}
socketForClient.Close();
Console.WriteLine("Exiting...");
}
}
Client Code:
using System;
using System.Net.Sockets;
public class Client
{
static public void Main( string[] Args )
{
TCPClient socketForServer;
try
{
socketForServer = new TCPClient("localHost", 10);
}
catch
{
Console.WriteLine(
"Failed to connect to server at {0}:999", "localhost");
return;
}
NetworkStream networkStream = socketForServer.GetStream();
System.IO.StreamReader streamReader =
new System.IO.StreamReader(networkStream);
System.IO.StreamWriter streamWriter =
new System.IO.StreamWriter(networkStream);
try
{
string outputString;
// read the data from the host and display it
{
outputString = streamReader.ReadLine();
Console.WriteLine(outputString);
streamWriter.WriteLine("Client Message");
Console.WriteLine("Client Message");
streamWriter.Flush();
}
}
catch
{
Console.WriteLine("Exception reading from Server");
}
// tidy up
networkStream.Close();
}
}
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simi
Is this multi client supproted???
no.