太码多码码,总是多些感觉~~~
打了快一个小时啊,
但看着一行一行的出来,
还是有成就感的~~:)
VerySimpleChatServer.java
import java.io.*; import java.net.*; import java.util.*; public class VerySimpleChatServer { ArrayList clientOutputStream; public class ClientHandler implements Runnable { BufferedReader reader; Socket sock; public ClientHandler(Socket clientSocket) { try { sock = clientSocket; InputStreamReader isReader = new InputStreamReader(sock.getInputStream()); reader = new BufferedReader(isReader); } catch (Exception ex) { ex.printStackTrace(); } } public void run() { String message; try { while ((message = reader.readLine()) != null) { System.out.println("read " + message); tellEveryone(message); } } catch (Exception ex) { ex.printStackTrace(); } } } public static void main(String[] args) { // TODO Auto-generated method stub new VerySimpleChatServer().go(); } public void go() { clientOutputStream = new ArrayList(); try { ServerSocket serverSock = new ServerSocket(5000); while(true) { Socket clientSocket = serverSock.accept(); PrintWriter writer = new PrintWriter(clientSocket.getOutputStream()); clientOutputStream.add(writer); Thread t = new Thread(new ClientHandler(clientSocket)); t.start(); System.out.println("service at port 5000..."); System.out.println("got a connection..."); } } catch (Exception ex) { ex.printStackTrace(); } } public void tellEveryone(String message) { Iterator it = clientOutputStream.iterator(); while(it.hasNext()) { try { PrintWriter writer = (PrintWriter) it.next(); writer.println(message); writer.flush(); } catch (Exception ex) { ex.printStackTrace(); } } } }
SimpleChatClient.java
import java.io.*; import java.net.*; import java.util.*; import javax.swing.*; import java.awt.*; import java.awt.event.*; public class SimpleChatClient { JTextArea incoming; JTextField outgoing; BufferedReader reader; PrintWriter writer; Socket sock; public static void main(String[] args) { // TODO Auto-generated method stub SimpleChatClient client = new SimpleChatClient(); client.go(); } public void go() { JFrame frame = new JFrame("Ludicrously Simple Chat Client"); JPanel mainPanel = new JPanel(); incoming = new JTextArea(15, 30); incoming.setLineWrap(true); incoming.setWrapStyleWord(true); incoming.setEditable(false); JScrollPane qScroller = new JScrollPane(incoming); qScroller.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS); qScroller.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER); outgoing= new JTextField(20); JButton sendButton = new JButton("Send"); sendButton.addActionListener(new SendButtonListener()); mainPanel.add(qScroller); mainPanel.add(outgoing); mainPanel.add(sendButton); setUpNetworking(); Thread readerThread = new Thread(new IncomingReader()); readerThread.start(); frame.getContentPane().add(BorderLayout.CENTER, mainPanel); frame.setSize(400, 500); frame.setVisible(true); } private void setUpNetworking() { try { sock = new Socket("127.0.0.1", 5000); InputStreamReader streamReader = new InputStreamReader(sock.getInputStream()); reader = new BufferedReader(streamReader); writer = new PrintWriter(sock.getOutputStream()); System.out.println("networking established"); } catch (IOException ex) { ex.printStackTrace(); } } public class SendButtonListener implements ActionListener { public void actionPerformed(ActionEvent ev) { try { writer.println(outgoing.getText()); writer.flush(); } catch(Exception ex) { ex.printStackTrace(); } outgoing.setText(""); outgoing.requestDefaultFocus(); } } public class IncomingReader implements Runnable { public void run() { String message; try { while ((message = reader.readLine()) != null) { System.out.println("read " + message); incoming.append(message + "\n"); } } catch (Exception ex) { ex.printStackTrace(); } } } }