最近研究了下Java socket通信基础，利用代码实现了一个简单的多人聊天室功能，现把代码共享下，希望能帮到有兴趣了解的人。
目录结构：
ChatClient:
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package com.panda.chat; import java.awt.*; import java.awt.event.*; import java.io.*; import java.net.*; @SuppressWarnings("serial") public class ChatClient extends Frame { private TextArea ta = new TextArea(); private TextField tf = new TextField(); private DataOutputStream dos = null; private DataInputStream dis = null; private boolean bConnected = false; private Thread thread=null; public static void main(String[] args) { new ChatClient().frameClient(); } public void frameClient(){ setSize(400, 400); setLocation(400,300); add(ta,BorderLayout.NORTH); add(tf,BorderLayout.SOUTH); pack(); tf.addActionListener(new TfListener()); //关闭窗口事件监听 this.addWindowListener(new WindowAdapter() { @Override public void windowClosing(WindowEvent e) { disconnected(); System.exit(0); } }); this.connect(); setVisible(true); } //链接服务器地址 private void connect(){ try { socket = new Socket("127.0.0.1", 8888); thread=new Thread(new ChatThread()); thread.start(); dos = new DataOutputStream(socket.getOutputStream()); dis = new DataInputStream(socket.getInputStream()); } catch (UnknownHostException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } //断开连接 private void disconnected(){ bConnected = false; try { dos.close(); dis.close(); socket.close(); } catch (IOException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } } //键盘回车事件 private class TfListener implements ActionListener{ @Override public void actionPerformed(ActionEvent e) { String strMsg = tf.getText(); tf.setText(""); try { dos.writeUTF(strMsg); dos.flush(); } catch (IOException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } } } //开启线程接受服务器信息 private class ChatThread implements Runnable{ @Override public void run() { try { bConnected = true; while(bConnected){ String msg = dis.readUTF(); String taText = ta.getText(); ta.setText(taText+msg+"\n"); } } catch (SocketException e) { System.out.println("退出");; } catch (IOException e) { e.printStackTrace(); } } } } |
ChatServer:
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package com.panda.chat; import java.io.*; import java.net.*; import java.util.*; public class ChatServer { private boolean started = false; private List<ChatThread> chatThreads = new ArrayList<ChatThread>(); public static void main(String[] args) { new ChatServer().startServer(); } private void startServer(){ try { //开启服务端Socket ServerSocket seso = new ServerSocket(8888); started = true; while(started){ //接受客户端连接请求 Socket sos = seso.accept(); System.out.println("一个客户端已连接"); //开启线程处理客户端通信 ChatThread ct = new ChatThread(sos); chatThreads.add(ct); new Thread(ct).start(); } } catch (IOException e) { e.printStackTrace(); } } private class ChatThread implements Runnable{ private Socket socket; private DataInputStream din=null; private DataOutputStream don=null; private boolean bConnected = false; public ChatThread(Socket socket) { super(); this.socket = socket; } //发送信息的函数 private void send(String strMsgIn){ try{ don.writeUTF(strMsgIn); don.flush(); }catch(IOException e){ e.printStackTrace(); } } @Override public void run() { try{ din = new DataInputStream(socket.getInputStream()); don = new DataOutputStream(socket.getOutputStream()); //读取数据 bConnected = true; while(bConnected){ String strMsgIn = din.readUTF(); System.out.println(strMsgIn); //接收到数据后发送给每个客户端 for(int i =0;i<chatThreads.size();i++){ chatThreads.get(i).send(strMsgIn); } } }catch (IOException e) { try { //如果客户端出错或关闭，直接关闭连接，并移除List中的当前线程 socket.close(); chatThreads.remove(this); } catch (IOException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } } finally{ try { din.close(); don.close(); socket.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } } } |
运行ChatSever后，再同时打开多次ChatClient，就可以实现多人聊天了，你也试试。
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：http://blog.csdn.net/eric_ley/article/details/54906931
