/**
 * 功能: 带简易界面的聊天程序
 *          从9999端口连接服务器
 *    问题：还未实现按enter键发送信息
 */
package com.test3;
import javax.swing.*;

import java.net.*;
import java.io.*;
import java.awt.event.*;

public class MyClient3 extends JFrame implements ActionListener,KeyListener{

    /**
     * @param args
     */
    //定义需要的组件
        JTextArea jta = null;
        JTextField jtf = null;
        JButton jb = null;
        JPanel jp = null;
        JScrollPane jsp = null;
        PrintWriter pw = null;
    
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        MyClient3 mc3 = new MyClient3();
    }
    
    //构造方法
        public MyClient3()
        {
            jta = new JTextArea();
            jtf = new JTextField(10);
            jtf.addKeyListener((KeyListener) this);
            jb = new JButton("发送");
            jb.addActionListener(this);
            jp = new JPanel();
            jsp = new JScrollPane(jta);
            jp.add(jtf);
            jp.add(jb);
            
            
            
            this.add(jsp,"Center");
            this.add(jp,"South");
            this.setSize(400,300);
            this.setTitle("正在与服务器聊天...");
            this.setVisible(true);
            
            try {
                //连接服务器
                Socket s = new Socket("127.0.0.1", 9999);
                
                pw = new PrintWriter(s.getOutputStream(),true);
                
                //接受来之服务器的信息
                InputStreamReader isr = new InputStreamReader(s.getInputStream());
                BufferedReader br = new BufferedReader(isr);
                
                //读取来之服务器的信息
                while(true)
                {
                    String infoFromServer = br.readLine();
                    //显示到jta聊天区域
                    jta.append("服务器："+infoFromServer+"\r\n");
                }
                
                
            } catch (UnknownHostException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

        }

    @Override
    public void actionPerformed(ActionEvent arg0) {
        // TODO Auto-generated method stub
        if(arg0.getSource()==jb)
        {
            //得到jtf输入框中的内容
            String info = jtf.getText();
            //发送给服务器
            pw.println(info);
            //置空jtf输入框
            jtf.setText("");
            //把info显示到自己的聊天区域jta
            jta.append("客服端："+info+"\r\n");
            
        }
        
        
    }

    @Override
    public void keyPressed(KeyEvent arg0) {
        // TODO Auto-generated method stub
        //用户按下回车也发送输入框中的信息
        if(arg0.getKeyChar()==KeyEvent.VK_ENTER)
        {
            //得到jtf输入框中的内容
            String info = jtf.getText();
            //发送给服务器
            pw.println(info);
            //置空jtf输入框
            jtf.setText("");
            //把info显示到自己的聊天区域jta
            jta.append("客服端："+info+"\r\n");
        }
    }

    @Override
    public void keyReleased(KeyEvent arg0) {
        // TODO Auto-generated method stub
        
        
    }

    @Override
    public void keyTyped(KeyEvent arg0) {
        // TODO Auto-generated method stub
        
    }
}

/**
 * 带简易界面的服务器和客服端聊天程序
 * 这是服务器端，监听9999端口
 *   问题：还未实现按enter键发送信息
 */
package com.test3;
import java.net.*;

import javax.swing.*;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.io.*;

public class MyServer3 extends JFrame implements ActionListener,KeyListener{

    /**
     * @param args
     * 
     */
    
    //定义需要的组件
    JTextArea jta = null;
    JTextField jtf = null;
    JButton jb = null;
    JPanel jp = null;
    JScrollPane jsp = null;
    PrintWriter pw = null;
    
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        MyServer3 ms3 = new MyServer3();
    }
    
    //构造方法
    public MyServer3()
    {
        jta = new JTextArea();
        jtf = new JTextField(10);
        jb = new JButton("发送");
        jb.addActionListener(this);
        jp = new JPanel();
        jsp = new JScrollPane(jta);
        jp.add(jtf);
        jp.add(jb);
        
        
        
        this.add(jsp,"Center");
        this.add(jp,"South");
        this.setSize(400,300);
        this.setTitle("正在与客服端聊天...");
        this.setVisible(true);
        
        try {
            //监听9999端口
            ServerSocket ss = new ServerSocket(9999);
            //等待客服端连接
            Socket s = ss.accept();
            
            //从Socket接收客服端发来的信息
            InputStreamReader isr = new InputStreamReader(s.getInputStream());
            BufferedReader br = new BufferedReader(isr);
            pw = new PrintWriter(s.getOutputStream(),true);
            while(true)
            {
                //接收客服端发来的信息
                String infoFromClient = br.readLine();
                //把客服端发来的信息显示在jta聊天显示区域并换行
                jta.append("客服端："+infoFromClient+"\r\n");
            }
            
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        
    }

    @Override
    public void actionPerformed(ActionEvent arg0) {
        // TODO Auto-generated method stub
        if((arg0.getSource()==jb))
        {
            //如果用户点击了发送按钮，先得到输入框jtf中的内容
            String info = jtf.getText();
            //把info发送给客服端，并置空输入框jtf
            pw.println(info);
            jtf.setText("");
            //把自己发送给客服端的信息也显示到聊天区域jta
            jta.append("服务器："+info+"\r\n");
        }
    }

    @Override
    public void keyPressed(KeyEvent e) {
        // TODO Auto-generated method stub
        if(e.getKeyChar()==KeyEvent.VK_ENTER)
        {
            String info = jtf.getText();
            pw.println(info);
            jtf.setText("");
            jta.append("服务器："+info+"\r\n");
        }
    }

    @Override
    public void keyReleased(KeyEvent e) {
        // TODO Auto-generated method stub
        
    }

    @Override
    public void keyTyped(KeyEvent e) {
        // TODO Auto-generated method stub
        
    }
}