JAVA简单的群聊例子

简单的群聊例子

分为服务器端和客户端

服务器端的代码

package com.gxuwz.fulunyong;import java.awt.BorderLayout;import java.awt.GridLayout;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.io.PrintWriter;import java.net.ServerSocket;import java.net.Socket;import java.util.ArrayList;import java.util.List;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JPanel;import javax.swing.JScrollPane;import javax.swing.JTextArea;import javax.swing.JTextField;/** * @author:fulunyong * @email:[e-mail] * @datetime:2015年8月20日下午4:36:14 * @version 1.0 * @serial 简单JAVA群聊例子   服务器端 */public class ServerWindows extends JFrame{private static final long serialVersionUID = 9150820189192868510L;public static void main(String[] args){new ServerWindows();}/***************************华丽丽的分割线**********************************/public static List<Socket> sockets;//客户端列表private static ServerSocket serverSocket;public static JTextArea show;//消息显示框private static JLabel label;public static JTextField jTextField;public ServerWindows(){if (null==sockets) {sockets=new ArrayList<Socket>();}setTitle("梧州学院聊天室-服务器端");//标题setSize(600, 800);//setLocationRelativeTo(null);//居中出现setDefaultCloseOperation(EXIT_ON_CLOSE);//点击关闭窗口时推出//组件初始化show=new JTextArea();show.setEditable(false);label=new JLabel("当前在线人数：");jTextField=new JTextField();jTextField.setEditable(false);//添加到面板JPanel jPanel1=new JPanel();GridLayout gridLayout1=new GridLayout(1, 1);jPanel1.setLayout(gridLayout1);jPanel1.add(new JScrollPane(show));JPanel jPanel2=new JPanel(new GridLayout(1, 5));jPanel2.add(label);jPanel2.add(jTextField);add(jPanel1,BorderLayout.CENTER);add(jPanel2,BorderLayout.SOUTH);try {serverSocket=new ServerSocket(5200);} catch (IOException e){e.printStackTrace();}show.append("服务器开启成功！等待客户端连接。。。。\n");jTextField.setText(""+sockets.size());setVisible(true);while (true){try {Socket socket=serverSocket.accept();if(!sockets.contains(socket)){sockets.add(socket);jTextField.setText(""+sockets.size());for (Socket socket2 : sockets){PrintWriter printWriter=new PrintWriter(socket2.getOutputStream());printWriter.println("欢迎 "+socket.getInetAddress()+"加入聊天室");printWriter.flush();}}new ServerReceiveThread(socket).start();} catch (IOException e) {e.printStackTrace();}}}}class ServerReceiveThread extends Thread{private Socket socket;public ServerReceiveThread(Socket socket){this.socket=socket;}@Overridepublic void run(){BufferedReader reader = null;try { reader=new BufferedReader(new InputStreamReader(socket.getInputStream())); while (true){String info=reader.readLine();if (null!=info){ServerWindows.show.append(info+"\n");for (Socket socket : ServerWindows.sockets){if (!socket.isClosed()){PrintWriter printWriter=new PrintWriter(socket.getOutputStream());printWriter.println(info);printWriter.flush();}}}}} catch (IOException e) {e.printStackTrace();ServerWindows.sockets.remove(socket);ServerWindows.jTextField.setText(""+ServerWindows.sockets.size());try {socket.close();} catch (IOException e1) {e1.printStackTrace();}}finally {ServerWindows.sockets.remove(socket);ServerWindows.jTextField.setText(""+ServerWindows.sockets.size());try {socket.close();reader.close();} catch (IOException e) {e.printStackTrace();}}}}

客户端的代码

package com.gxuwz.fulunyong;import java.awt.BorderLayout;import java.awt.GridLayout;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.io.PrintWriter;import java.net.ServerSocket;import java.net.Socket;import java.util.ArrayList;import java.util.List;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JPanel;import javax.swing.JScrollPane;import javax.swing.JTextArea;import javax.swing.JTextField;/** * @author:fulunyong * @email:[e-mail] * @datetime:2015年8月20日下午4:36:14 * @version 1.0 * @serial 简单JAVA群聊例子   服务器端 */public class ServerWindows extends JFrame{private static final long serialVersionUID = 9150820189192868510L;public static void main(String[] args){new ServerWindows();}/***************************华丽丽的分割线**********************************/public static List<Socket> sockets;//客户端列表private static ServerSocket serverSocket;public static JTextArea show;//消息显示框private static JLabel label;public static JTextField jTextField;public ServerWindows(){if (null==sockets) {sockets=new ArrayList<Socket>();}setTitle("梧州学院聊天室-服务器端");//标题setSize(600, 800);//setLocationRelativeTo(null);//居中出现setDefaultCloseOperation(EXIT_ON_CLOSE);//点击关闭窗口时推出//组件初始化show=new JTextArea();show.setEditable(false);label=new JLabel("当前在线人数：");jTextField=new JTextField();jTextField.setEditable(false);//添加到面板JPanel jPanel1=new JPanel();GridLayout gridLayout1=new GridLayout(1, 1);jPanel1.setLayout(gridLayout1);jPanel1.add(new JScrollPane(show));JPanel jPanel2=new JPanel(new GridLayout(1, 5));jPanel2.add(label);jPanel2.add(jTextField);add(jPanel1,BorderLayout.CENTER);add(jPanel2,BorderLayout.SOUTH);try {serverSocket=new ServerSocket(5200);} catch (IOException e){e.printStackTrace();}show.append("服务器开启成功！等待客户端连接。。。。\n");jTextField.setText(""+sockets.size());setVisible(true);while (true){try {Socket socket=serverSocket.accept();if(!sockets.contains(socket)){sockets.add(socket);jTextField.setText(""+sockets.size());for (Socket socket2 : sockets){PrintWriter printWriter=new PrintWriter(socket2.getOutputStream());printWriter.println("欢迎 "+socket.getInetAddress()+"加入聊天室");printWriter.flush();}}new ServerReceiveThread(socket).start();} catch (IOException e) {e.printStackTrace();}}}}class ServerReceiveThread extends Thread{private Socket socket;public ServerReceiveThread(Socket socket){this.socket=socket;}@Overridepublic void run(){BufferedReader reader = null;try { reader=new BufferedReader(new InputStreamReader(socket.getInputStream())); while (true){String info=reader.readLine();if (null!=info){ServerWindows.show.append(info+"\n");for (Socket socket : ServerWindows.sockets){if (!socket.isClosed()){PrintWriter printWriter=new PrintWriter(socket.getOutputStream());printWriter.println(info);printWriter.flush();}}}}} catch (IOException e) {e.printStackTrace();ServerWindows.sockets.remove(socket);ServerWindows.jTextField.setText(""+ServerWindows.sockets.size());try {socket.close();} catch (IOException e1) {e1.printStackTrace();}}finally {ServerWindows.sockets.remove(socket);ServerWindows.jTextField.setText(""+ServerWindows.sockets.size());try {socket.close();reader.close();} catch (IOException e) {e.printStackTrace();}}}}

很简单的一个例子，希望各位大神指点指点。