java.net 操练

一个很简单的局域网聊天工具的服务器端

/*

* Created on 2005-3-18

*

* TODO To change the template for this generated file go to

* Window - Preferences - Java - Code Style - Code Templates

*/

package netChat;

import javax.swing.*;

import java.io.*;

import java.net.*;

import java.awt.*;

import java.awt.event.*;

/**

* @author AppleTian

*

* TODO To change the template for this generated type comment go to

* Window - Preferences - Java - Code Style - Code Templates

*/

public class server extends JFrame {

private JTextField messageBox;

private JTextArea infBox;

private ObjectInputStream input;

private ObjectOutputStream output;

private ServerSocket server;

private Socket serverSocket;

public server(){

super("server");

Container c=getContentPane();

messageBox=new JTextField("");

messageBox.setEnabled(false);

messageBox.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent e){

sendData(e.getActionCommand());

}

});

c.add(messageBox,BorderLayout.NORTH);

infBox=new JTextArea();

infBox.setFont(new Font("Serif",Font.BOLD,12));

c.add(new JScrollPane(infBox),BorderLayout.CENTER);

setSize(500,400);

setVisible(true);

}

/**

* @param actionCommand

*/

protected void sendData(String actionCommand) {

try{

output.writeObject(actionCommand);

output.flush();

infBox.append("\nsend<<"+actionCommand+">> to client...\n");

}

catch(IOException e){

infBox.append("\nExceptionIOInSendDataFunction...");

}

}

public void runServer(){

try{

server=new ServerSocket(5000,100);

while(true){

waitForConnection();

getStreams();

processConnection();

closeConnection();

}

}

catch(EOFException e){

infBox.append("\nError in runServerFUCtion");

}

catch(IOException e){