本文主要是介绍Java使用socket网络编程实现多人聊天室，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
前言：套接字(socket)编程能够实现服务器和客户端的通信，以下通过Socket编程结合多线程实现多人聊天室。
程序展示：
界面类
1.客户端界面 ClientView.java
public class ClientView extends JFrame implements ActionListener, KeyListener, Runnable {private JTextArea textArea;private JTextField textField, tfName;private JButton btnSend, btnId;private JLabel label;private JPanel jp1, jp2;public boolean isConnect = false;private Socket socket = null;private DataInputStream inputStream = null;private DataOutputStream outputStream = null;private JScrollPane scrollPane;private static ClientView view;public JTextArea getTextArea() {return textArea;}public DataInputStream getInputStream() {return inputStream;}public DataOutputStream getOutputStream() {return outputStream;}public static void main(String[] args) {view = new ClientView();ServiceView.clientViews.add(view);Thread thread = new Thread(view);thread.start();}public ClientView() {initView();try {socket = new Socket("localhost", 9090);//连接本地服务器} catch (UnknownHostException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}}private void initView() {textArea = new JTextArea(20, 20);textArea.setEditable(false);scrollPane = new JScrollPane(textArea);textField = new JTextField(15);textField.addKeyListener(this);btnSend = new JButton("发送");btnSend.addActionListener(this);label = new JLabel("昵称：");tfName = new JTextField(8);jp1 = new JPanel();jp2 = new JPanel();jp1.add(label);jp1.add(tfName);tfName.setText("用户0");jp1.setLayout(new FlowLayout(FlowLayout.CENTER));jp2.add(textField);jp2.add(btnSend);jp2.setLayout(new FlowLayout(FlowLayout.CENTER));add(jp1, BorderLayout.NORTH);add(scrollPane, BorderLayout.CENTER);add(jp2, BorderLayout.SOUTH);setTitle("聊天室");setSize(500, 500);setLocation(450, 150);setVisible(true);setDefaultCloseOperation(EXIT_ON_CLOSE);addWindowListener(new WindowAdapter() { //窗口关闭后断开连接@Overridepublic void windowClosing(WindowEvent e) {try {if (socket != null)socket.close();if (inputStream!= null)inputStream.close();if (outputStream != null)outputStream.close();} catch (IOException e1) {e1.printStackTrace();}}});}@Overridepublic void actionPerformed(ActionEvent e) {if (e.getSource() == btnSend) {sendMsg();}}private void sendMsg() {try {String s = textField.getText();if (!s.equals("")) { //发送数据textField.setText("");textArea.append("我(" + tfName.getText() + "):\r\n" + s + "\r\n");outputStream = new DataOutputStream(socket.getOutputStream());outputStream.writeUTF(tfName.getText() + "#" + s); outputStream.flush();}} catch (IOException e) {e.printStackTrace();}}@Overridepublic void keyPressed(KeyEvent arg0) {if (arg0.getKeyCode() == KeyEvent.VK_ENTER) {sendMsg();}}@Overridepublic void keyReleased(KeyEvent arg0) {}@Overridepublic void keyTyped(KeyEvent arg0) {}@Overridepublic void run() {try {inputStream = new DataInputStream(socket.getInputStream());while (true) {String[] s = inputStream.readUTF().split("#");textArea.append(s[0] + ":\r\n" + s[1] + "\r\n");}} catch (IOException e) {}}
}2.服务器界面 ServiceView.java
public class ServiceView extends JFrame implements ActionListener{private JButton btnOpen, btnStop;private JLabel label;private Service service = null;public static ArrayList<ClientView> clientViews = new ArrayList<>();private static ServiceView view;public static ServiceView getView() {return view;}public static void main(String[] args) {view = new ServiceView();}public ServiceView() {initView();}private void initView() {btnOpen = new JButton("打开服务器");btnStop = new JButton("关闭服务器");btnStop.setEnabled(false);btnOpen.addActionListener(this);btnStop.addActionListener(this);label = new JLabel("服务器停止工作");add(label);add(btnOpen);add(btnStop);setTitle("服务器");setLayout(new GridLayout(3, 1, 0, 10));setSize(300, 300);setLocation(450, 150);setVisible(true);setDefaultCloseOperation(EXIT_ON_CLOSE);}@Overridepublic void actionPerformed(ActionEvent e) {if (e.getSource() == btnOpen) {open();} else {stop();}}public void open() { //开启服务器service = new Service();Thread thread = new Thread(service);thread.start();label.setText("服务器正在运行");btnOpen.setEnabled(false);btnStop.setEnabled(true);}public void stop() { //关闭服务器label.setText("服务器已关闭");btnOpen.setEnabled(true);btnStop.setEnabled(false);try {synchronized (ClientMannager.sockets) { //关闭各个连接for (ChatSocket socket : ClientMannager.sockets) {socket.getInputStream().close();socket.getOutputStream().close();}ClientMannager.sockets.removeAllElements();}for (ClientView view : clientViews) {view.getInputStream().close();view.getOutputStream().close();}service.getServerSocket().close();} catch (IOException e) {e.printStackTrace();}}}功能类
1.ChatSocket.java
/*使用socket获得数据流，达到传输数据的目的*/
public class ChatSocket implements Runnable{private Socket socket = null;private DataInputStream inputStream = null;private DataOutputStream outputStream = null;public DataInputStream getInputStream() {return inputStream;}public DataOutputStream getOutputStream() {return outputStream;}public ChatSocket(Socket socket) {this.socket = socket;try {inputStream = new DataInputStream(socket.getInputStream());outputStream = new DataOutputStream(socket.getOutputStream());} catch (IOException e) {e.printStackTrace();}}public void send(String send) { //向客户端发送数据try {outputStream.writeUTF(send);outputStream.flush();} catch (IOException e) {e.printStackTrace();}}@Overridepublic void run() { //循环读取客户端发来的数据String accept = null;while (true) {try {accept = inputStream.readUTF();ClientMannager.sendAll(this, accept);} catch (IOException e) {ClientMannager.sockets.remove(this);}}}
}2.ClientMannager.java
/*客户端管理器*/
public class ClientMannager {private ClientMannager() {}public static Vector<ChatSocket> sockets = new Vector<>();//向其他客户端发送数据public static void sendAll(ChatSocket chatSocket, String send) {for (ChatSocket socket : sockets) {if (!chatSocket.equals(socket)) {socket.send(send);}}}
}3.Service.java
/*服务器端，使用线程达到循环等待连接的目的*/
public class Service implements Runnable{private ServerSocket serverSocket = null;public ServerSocket getServerSocket() {return serverSocket;}@Overridepublic void run() {try {serverSocket = new ServerSocket(9090); //创建端口while (true) { //循地接收客户端的连接Socket socket = serverSocket.accept();JOptionPane.showMessageDialog(ServiceView.getView(), "客户端连接端口", "TIP", JOptionPane.INFORMATION_MESSAGE);ChatSocket chatSocket = new ChatSocket(socket); //新客户端连接ClientMannager.sockets.add(chatSocket); //往客户端管理器里添加客户Thread thread = new Thread(chatSocket); //启用线程使服务器开始不断接收客户端信息thread.start();}} catch (IOException e) {e.printStackTrace();System.out.println("服务器关闭");}}}这篇关于Java使用socket网络编程实现多人聊天室的文章就介绍到这儿，希望我们推荐的文章对编程师们有所帮助！
