主要思想：
主类继承JPanel，在构造方法中将JFrame设成空布局；在其中适当位置添加组件；实现事件监听处理
DATE:2015-10-31
服务器端代码：
/**
* @author Oyc
* 功能：网络简易测试的服务器端
*
*
*/
package com.NETtestServer;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket; import javax.imageio.ImageIO;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField; public class ServerDemo extends JPanel implements ActionListener{
public static void main(String[] args) {
// TODO Auto-generated method stub
new ServerDemo();
}
//定义组件
JFrame jf;
JTextField SendJTF;
JButton SendJB;
JTextArea jta=null;
JScrollPane jsp=null;
PrintWriter pw;
public ServerDemo(){
this.setLayout(null);
//创建组件
jta=new JTextArea();
jsp=new JScrollPane(jta);
jsp.setBounds(0,50,650,210);
this.add(jsp); SendJTF=new JTextField(15);
SendJTF.addActionListener(this);
SendJTF.setBackground(Color.lightGray);
SendJTF.setBounds(0,250,650,120);
this.add(SendJTF);
//发送按钮
SendJB=new JButton("发送");
SendJB.setBounds(540,380,80,25);
SendJB.addActionListener(this);
this.add(SendJB); jf=new JFrame("QQ简易聊天 服务器");
jf.setBounds(400, 100, 660, 445);
jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jf.add(this);
jf.setVisible(true);
jf.setResizable(false);
//开启监听
try {
//在9988号端口监听
ServerSocket ss=new ServerSocket(9988);
//等待客户端连接
Socket s=ss.accept();
// 接受从客户端发来的信息
InputStreamReader isr=new InputStreamReader(s.getInputStream());
BufferedReader br=new BufferedReader(isr);
//发送准备
pw=new PrintWriter(s.getOutputStream(),true);
while(true){
//读入从客户端发来的信息
String infoClient=br.readLine();
jta.append("客户端:"+infoClient+"\n");
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
} }
//设置背景
protected void paintComponent(Graphics g)
{
try {
BufferedImage Background=ImageIO.read(new File("images/QQCHAT.jpg"));
g.drawImage(Background, 0, 0,654, 414,null);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} @Override
//事件监听处理方法
public void actionPerformed(ActionEvent e) {
//发送按钮
if(e.getSource()==SendJB){
String info=SendJTF.getText();
pw.println(info);
SendJTF.setText("");
jta.append("发送："+info+"\n");
}
}
}
客户端代码：
/**
* /**
* @author Oyc
* 功能：网络简易测试的客户端
*
*/ package com.NETtestClient;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket; import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField; public class ClientDemo extends JPanel implements ActionListener{
public static void main(String[] args) {
// TODO Auto-generated method stub
new ClientDemo(); }
//定义组件
JFrame jf;
JTextField SendJTF;
JButton SendJB;
JTextArea jta=null;
JScrollPane jsp=null;
PrintWriter pw;
public ClientDemo(){ this.setLayout(null);
//创建组件
jta=new JTextArea();
jsp=new JScrollPane(jta);
jsp.setBounds(0,50,650,210);
this.add(jsp); SendJTF=new JTextField(15);
SendJTF.addActionListener(this);
SendJTF.setBackground(Color.lightGray);
SendJTF.setBounds(0,250,650,120);
this.add(SendJTF); //发送按钮
SendJB=new JButton("发送");
SendJB.setBounds(536,378,100,25);
SendJB.addActionListener(this);
this.add(SendJB);
jf=new JFrame("QQ简易聊天 客户端");
jf.setBounds(400, 100, 660, 445);
jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jf.add(this);
jf.setVisible(true);
jf.setResizable(false); //连接服务器
try {
Socket s=new Socket("127.0.0.1",9988 );
//接受从服务器发来的消息
InputStreamReader isr=new InputStreamReader(s.getInputStream());
BufferedReader br=new BufferedReader(isr);
//发送准备
pw=new PrintWriter(s.getOutputStream(),true);
while(true){
//接收服务器的消息
String infoServer=br.readLine();
jta.append("服务器:"+infoServer+"\n");
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} //设置背景
protected void paintComponent(Graphics g)
{
try {
BufferedImage Background=ImageIO.read(new File("images/QQCHAT.jpg"));
g.drawImage(Background, 0, 0,654, 414,null);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} @Override
//事件监听处理方法
public void actionPerformed(ActionEvent e) {
if(e.getSource()==SendJB){
String info=SendJTF.getText();
pw.println(info);
SendJTF.setText("");
jta.append("发送："+info+"\n"); }
}
}
运行截图：
