socket chat

package src;import java.io.*;import java.net.*;import java.util.*;public class ChatServer {boolean started = false;ServerSocket ss = null;List<Client> clients = new ArrayList<Client>();public static void main(String[] args) {new ChatServer().start();}public void start() {try {ss = new ServerSocket(8888);started = true;} catch (BindException e) {System.out.println("ｶﾋｿﾚﾊｹﾓﾃﾖﾐ....");System.out.println("ﾇ�ｹﾘｵ犹ﾘｳﾌﾐ｢ﾖﾘﾐﾂﾔﾋﾐﾐｷ�ﾎ｡");System.exit(0);} catch (IOException e) {e.printStackTrace();}try {while(started) {Socket s = ss.accept();Client c = new Client(s);System.out.println("a client connected!");new Thread(c).start();clients.add(c);//dis.close();}} catch (IOException e) {e.printStackTrace();} finally {try {ss.close();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}}class Client implements Runnable {private Socket s;private DataInputStream dis = null;private DataOutputStream dos = null;private boolean bConnected = false;public Client(Socket s) {this.s = s;try {dis = new DataInputStream(s.getInputStream());dos = new DataOutputStream(s.getOutputStream());bConnected = true;} catch (IOException e) {e.printStackTrace();}}public void send(String str) {try {dos.writeUTF(str);} catch (IOException e) {clients.remove(this);System.out.println("ｶﾔｷｽﾍﾋｳﾋ｣｡ﾎﾒｴﾓListﾀ�ﾃ貶･ｵﾋ｣｡");//e.printStackTrace();}}public void run() {try {while(bConnected) {String str = dis.readUTF();System.out.println(str);for(int i=0; i<clients.size(); i++) {Client c = clients.get(i);c.send(str);//System.out.println(" a string send !");}/*for(Iterator<Client> it = clients.iterator(); it.hasNext(); ) {Client c = it.next();c.send(str);}*//*Iterator<Client> it = clients.iterator();while(it.hasNext()) {Client c = it.next();c.send(str);}*/}} catch (EOFException e) {System.out.println("Client closed!");} catch (IOException e) {e.printStackTrace();} finally {try {if(dis != null) dis.close();if(dos != null) dos.close();if(s != null) {s.close();//s = null;}} catch (IOException e1) {e1.printStackTrace();}}}}}

package src;import java.awt.*;import java.awt.event.*;import java.io.*;import java.net.*;public class ChatClient extends Frame {Socket s = null;DataOutputStream dos = null;DataInputStream dis = null;private boolean bConnected = false;TextField tfTxt = new TextField();TextArea taContent = new TextArea();Thread tRecv = new Thread(new RecvThread()); public static void main(String[] args) {new ChatClient().launchFrame(); }public void launchFrame() {setLocation(400, 300);this.setSize(300, 300);add(tfTxt, BorderLayout.SOUTH);add(taContent, BorderLayout.NORTH);pack();this.addWindowListener(new WindowAdapter() {@Overridepublic void windowClosing(WindowEvent arg0) {disconnect();System.exit(0);}});tfTxt.addActionListener(new TFListener());setVisible(true);connect();tRecv.start();}public void connect() {try {s = new Socket("127.0.0.1", 8888);dos = new DataOutputStream(s.getOutputStream());dis = new DataInputStream(s.getInputStream());System.out.println("connected!");bConnected = true;} catch (UnknownHostException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}}public void disconnect() {try {dos.close();dis.close();s.close();} catch (IOException e) {e.printStackTrace();}/*try {bConnected = false;tRecv.join();} catch(InterruptedException e) {e.printStackTrace();} finally {try {dos.close();dis.close();s.close();} catch (IOException e) {e.printStackTrace();}}*/}private class TFListener implements ActionListener {public void actionPerformed(ActionEvent e) {String str = tfTxt.getText().trim();//taContent.setText(str);tfTxt.setText("");try {//System.out.println(s);dos.writeUTF(str);dos.flush();//dos.close();} catch (IOException e1) {e1.printStackTrace();}}}private class RecvThread implements Runnable {public void run() {try {while(bConnected) {String str = dis.readUTF();//System.out.println(str);taContent.setText(taContent.getText() + str + '/n');}} catch (SocketException e) {System.out.println("�˳��ˣ�bye!");} catch (EOFException e) {System.out.println("�Ƴ��ˣ�bye - bye!");} catch (IOException e) {e.printStackTrace();} }}}