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java.net 操练__教程
日期:2007-5-20 1:27:33 人气:164     [ ]
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infBox.append("\nGet Streams...");


}


/**
*
*/
private void waitForConnection() throws IOException {
infBox.append("wait for a Client...");
serverSocket=server.accept();
infBox.append("connected by"+serverSocket.getInetAddress().getHostName());


}


public static void main(String[] args) {
server my=new server();
my.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
my.runServer();
}
}




客户端



/*
* 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 client extends JFrame {

private JTextField messageBox;
private JTextArea infBox;
private ObjectInputStream input;
private ObjectOutputStream output;
private String mg="";
private String chatServer;
private Socket client;
public client(String host){
super("client....");
chatServer=host;
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();
c.add(infBox,BorderLayout.CENTER);

setSize(500,400);
setVisible(true);





}


/**
* @param actionCommand
*/
protected void sendData(String actionCommand) {
try{
mg=messageBox.getText();
output.writeObject(mg);
output.flush();
infBox.append("\nsend to server: "+mg);
}catch(IOException e){
infBox.append("\nIOException in sendData..");
}

}
public void runClient(){
try{

connectToServer();
getStreams();
processConnection();
closeConnection();
}catch(IOException e){
infBox.append(e.toString());
}

}

/**
*
*/
private void closeConnection()throws IOException {
// TODO Auto-generated method stub
infBox.append("\nclose...");
output.close();
input.close();
client.close();

}


/**
*
*/
private void processConnection() throws IOException{
// TODO Auto-generated method stub
messageBox.setEnabled(true );
do{
try{
mg=(String )input.readObject();
infBox.append("\nFrom server: "+mg);
infBox.setCaretPosition(infBox.getText().length());
}catch(ClassNotFoundException e){
infBox.append("classNotFound...\n");
}
}while(mg!="end");
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