java socket-message-作業慢慢寫~今天就到這

package org.tiantian.message.server;

import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;

public class Server {
	private int port;

	public Server(int listenPort) {
		this.port = listenPort;
	}

	public void handleConnection(Socket connectionToHandle) {
		new Thread(new ConnectionHandler(connectionToHandle)).start();
	}

	public void acceptConnections() {
		try {
			ServerSocket server = new ServerSocket(port, 100);
			Socket incomingConnection = null;
			while (true) {
				incomingConnection = server.accept();
				handleConnection(incomingConnection);
			}
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

	public static void main(String[] args) {
		System.out.println("Server start.");
		Server s= new Server(25000);
		s.acceptConnections();
		
	}
}

 

 

package org.tiantian.message.server;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;

public class ConnectionHandler implements Runnable {
	protected Socket toHandle;

	public ConnectionHandler(Socket s) {
		this.toHandle = s;
		try {
			PrintWriter streamWriter = new PrintWriter(toHandle
					.getOutputStream());
			BufferedReader streamReader = new BufferedReader(
					new InputStreamReader(toHandle.getInputStream()));
			streamWriter.println("OK from server.");
			System.out.println(streamReader.readLine());
			streamWriter.close();
			streamReader.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	@Override
	public void run() {

	}

}

 

package org.tiantian.message.client;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;
import java.net.UnknownHostException;

public class Client {
	protected BufferedReader socketReader;
	protected PrintWriter socketWriter;
	protected String hostIp;
	protected int hostPort;

	public Client(String hostIp, int hostPort) {
		super();
		this.hostIp = hostIp;
		this.hostPort = hostPort;
	}

	public void setUpConnection() {
		try {
			Socket client = new Socket(hostIp, hostPort);
			socketReader = new BufferedReader(new InputStreamReader(client
					.getInputStream()));
			socketWriter = new PrintWriter(client.getOutputStream());
		} catch (UnknownHostException e) {
			System.out
					.println("Error1 setting up socket connection: unknown host at "
							+ hostIp + ":" + hostPort);
		} catch (IOException e) {
			System.out.println("Error2 setting up socket connection: " + e);
		}
	}

	public void tearDownConnection() {
		try {
			socketWriter.close();
			socketReader.close();
		} catch (IOException e) {
			System.out.println("Error tearing down socket connection: " + e);
		}
	}

	public void talk() {
		StringBuffer sb = new StringBuffer();
		try {
			socketWriter.println("Hi,I'm client.");
			socketWriter.flush();
			String line = null;
			while ((line = socketReader.readLine()) != null)
				sb.append(line + "\n");
			System.out.println(sb.toString());
		} catch (IOException e) {
			e.printStackTrace();
		}

	}

	public static void main(String[] args) {
		Client c = new Client("127.0.0.1", 25000);
		c.setUpConnection();
		c.talk();
		c.tearDownConnection();
	}

}

 作業慢慢寫~今天就到這~