Socket通信客户端设计（Java）

 public class Client extends JFrame implements Runnable{

     private JPanel jPanel= new JPanel();
     private JLabel jLabel1=new JLabel("姓名： ");
     private JLabel jLabel2=new JLabel("端口： ");
     private JTextField jTextField1=new JTextField();
     private JTextField jTextField2=new JTextField();
     private JTextArea jTextArea=new JTextArea();
     private JTextField jTextField3=new JTextField();
     private JButton jButton=new JButton("发送(S)");

     private JScrollPane jScrollPane=new JScrollPane();
     private BufferedReader bufferedReader;
     private PrintWriter printWriter;
     private Socket socket;

     private static String title="劲爆聊天室";

     public Client(String port,String name){
         super(title+":"+name);
         this.setSize(377,387);
         this.add(jPanel);
         jPanel.setLayout(null);
         jTextArea.setEditable(false);
         //
         jPanel.add(jLabel1);
         jLabel1.setBounds(10, 10, 60, 20);
         jTextField1.setText(name);
         jTextField1.setEditable(false);
         jPanel.add(jTextField1);
         jTextField1.setBounds(60, 10, 60, 21);

         jPanel.add(jLabel2);
         jLabel2.setBounds(125, 10, 60, 20);
         jTextField2.setText(port);
         jTextField2.setEditable(false);
         jPanel.add(jTextField2);
         jTextField2.setBounds(190, 10, 60, 21);;

         jPanel.add(jTextField3);
         jTextField3.setBounds(10, 270, 320, 21);

         jTextArea.setColumns(20);
         jTextArea.setRows(5);

         jTextArea.setEditable(false);
         jScrollPane.setViewportView(jTextArea);
         jPanel.add(jScrollPane);
         jScrollPane.setBounds(10, 42, 320, 220);

         jPanel.add(jButton);
         jButton.setBounds(250, 300, 80, 22);
         jButton.addActionListener(new ActionListener() {

             @Override
             public void actionPerformed(ActionEvent e) {
                 // TODO Auto-generated method stub
                 if(e.getSource()==jButton){
                     printWriter.println(jTextField1.getText()+": "+jTextField3.getText());
                     jTextField3.setText("");
                 }
             }
         });
         //Jtextfield不好控制啊。。。。
 /*        jTextField3.addActionListener(new ActionListener() {

             @Override
             public void actionPerformed(ActionEvent e) {
                 // TODO Auto-generated method stub
                 printWriter.println(jTextField1.getText()+":"+jTextField3.getText());
                 jTextField3.setText("");
             }
         });*/
         getSocket();
     }
     @Override
     public void run(){
         while(true)
         {
             try {
                 jTextArea.append(bufferedReader.readLine()+"\n");

             } catch (Exception e) {
                 // TODO: handle exception
                 e.printStackTrace();
             }
         }
     }

     public void getSocket(){
         jTextArea.append("正在与劲爆聊天室进行连接..."+"\n");
         try {
             socket=new Socket("127.0.0.1",PortNumber.PORT.getNumber());
             jTextArea.append("劲爆聊天开始..."+"\n");
             bufferedReader=new BufferedReader(new InputStreamReader(socket.getInputStream()));
             printWriter=new PrintWriter(socket.getOutputStream(),true);
             new Thread(this).start();
         } catch (Exception e) {
             // TODO: handle exception
             e.printStackTrace();
         }
     }

 }

考虑到多客户端，此处用到了多线程。Socket确实有意思....

非常感叹T公司如果把一个IM软件，做到亿级用户量，如何解决并发，如何解决Server的及时回应，如何完成数据存储...

想不出来了...