java窗口聊天_java聊天窗口的实现

编写一数据报通信程序，实现简单的聊天功能。

“聊天内容”和“输入文本”分别为当前聊天的历史信息和当前要传送出去的聊天文本。“确定”、“清空”、“退出”三个按钮分别实现发送当前聊天文本、清空当前聊天文本和退出系统的功能。import java.awt.Font;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.WindowEvent;

import java.awt.event.WindowListener;

import .DatagramPacket;

import .DatagramSocket;

import .InetAddress;

import .SocketException;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JScrollBar;

import javax.swing.JScrollPane;

import javax.swing.JTextArea;

import javax.swing.JTextField;

public class Frame extends JFrame implements WindowListener{

private JTextArea text;

private JTextField ipText;

private JTextField sendText;

private JButton button;

private JButton button1;

private JButton button2;

private DatagramSocket socket;

private JScrollBar vsBar;

public Frame(){

setTitle("聊天器");

setBounds(100, 150,481, 371);

text=new JTextArea();

text.setEditable(true);

setLayout(null);

JScrollPane textPanel = new JScrollPane(text);

vsBar = textPanel.getVerticalScrollBar();

textPanel.setBounds(10,10, 320, 240);

getContentPane().add(textPanel);

JLabel label=new JLabel("请输入对方IP：");

label.setFont(new Font("",Font.BOLD,14));

label.setBounds(342, 24, 110, 24);

getContentPane().add(label);

ipText = new JTextField();

ipText.setBounds(352, 54, 111, 31);

getContentPane().add(ipText);

button=new JButton();

button.setText("确定");

button.setBounds(363, 135, 85, 47);

button.setFont(new Font("",Font.BOLD,23));

getContentPane().add(button);

button.addActionListener(new send());

button1=new JButton("清空");

button1.setBounds(363, 200, 85, 47);

button1.setFont(new Font("",Font.BOLD,23));

getContentPane().add(button1);

button1.addActionListener(new clear());

button2=new JButton("退出");

button2.setBounds(363, 260, 85, 47);

button2.setFont(new Font("",Font.BOLD,23));

getContentPane().add(button2);

button2.addActionListener(new exit());

this.addWindowListener(this);

sendText = new JTextField();

sendText.setBounds(10, 260, 320, 47);

getContentPane().add(sendText);

//server();

pack();

setVisible(true);

}

class send implements ActionListener{

public void actionPerformed(ActionEvent e) {

try{

String ip=ipText.getText();

InetAddress address=InetAddress.getByName(ip);

byte[] data=sendText.getText().getBytes();

DatagramP