noteframe.java

聊天系统。1、聊天 2、传文件 3、多人聊天

package com.client ;

import java.sql.* ;
import java.net.* ;
import javax.swing.* ;
import java.awt.event.*;
import java.awt.* ;
import java.util.EventListener;
import java.io.* ;

public class NoteFrame extends JFrame implements ActionListener {
	private Socket s;
	private	String u ;
	
	public void setSocket(Socket s , String u){
		this.s = s ;
		this.u = u ;
	}
	JTextArea t_area = new JTextArea() ;
	NoteFrame(){
		this.setSize(400, 400) ;
		this.setResizable(false) ;
		
		JScrollPane sp = new JScrollPane(t_area) ;
		JPanel p1 = new JPanel() ;
		p1.setLayout(new BorderLayout()) ;
		p1.add(sp , BorderLayout.CENTER) ;
		
		JButton b_note = new JButton("发送通知") ;
		b_note.addActionListener(this) ;
		JPanel p2 = new JPanel() ;
		p2.setLayout(new FlowLayout()) ;
		p2.add(b_note) ;
		
		this.setLayout(new BorderLayout()) ;
		this.add(p1 , BorderLayout.CENTER) ;
		this.add(p2 , BorderLayout.SOUTH) ;
		this.setVisible(true) ;
	}

	public void actionPerformed(ActionEvent e) {
		if(e.getActionCommand().equals("发送通知")){
			try {
				
				PrintWriter pw = new PrintWriter(new OutputStreamWriter(s.getOutputStream()),true) ;
				
				pw.println("note"+"%"+u+"%"+t_area.getText()) ;				
		    }
		    catch (Exception ex) {
		    	ex.printStackTrace() ;
		    }
		}
	}
}