Java networking program to get client ip address in server.
Description : The client tries to establish a connection to server having ip address 127.0.0.1 through port 6363. The socket class is used to establish connection . The server always listen to port 6363 for request from the clients. Once a request reach the server through that port, it establish a connection with that particular client. Multiple clients can connect to server, since i used thread in server.
Client program
import java.io.IOException;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;
/**
*
Computer Science practical questions[socket programing]
*/
/**
* @author evasiOn
*
*/
public class SampleClient {
/**
* @param args
*/
public static void main(String[] iPhone5S) {
String serverAddress = "127.0.0.1";
int port = 6363;
try {
InetAddress address = InetAddress.getByName(serverAddress);
Socket socket = new Socket(address, port);
System.out.println(" Client : request for connection "+socket.isConnected());
} catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e){
e.printStackTrace();
}
}
}
The client tries to establish a connection to server having ip address 127.0.0.1 through port 6363. The socket class is used to establish connection
Server program
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
/**
*
Computer Science practical questions[server client ]
*/
/**
* @author evasiOn
*
*/
public class SampleServer implements Runnable {
private int serverPort = 6363;
private ServerSocket serverSocket = null;
/**
* @param jailBreak
*/
public static void main(String[] jailBreak) {
SampleServer sampleServer = new SampleServer();
Thread thread = new Thread(sampleServer);
thread.start();
/*
int port = 6363;
try {
ServerSocket serverSocket = new ServerSocket(port);
Socket socket = null;
socket = serverSocket.accept();
System.out.println("Server : connection establised to "+socket.getLocalAddress());
System.out.println(socket.getInetAddress());
System.out.println(socket.getLocalSocketAddress());
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
*/
}
@Override
public void run() {
try {
serverSocket = new ServerSocket(serverPort);
Socket socket = null;
System.out.println(" Server : start listening to port :"+serverPort);
socket = serverSocket.accept();
System.out.println("Server : connection establised to "+socket.getLocalAddress());
System.out.println(socket.getInetAddress());
System.out.println(socket.getLocalSocketAddress());
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
The server always listen to port 6363 for request from the clients. Multiple clients can connect to server, since i used thread in server.
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