login.java

共同研究

    buttonClear = new JButton("清空");
    buttonClear.setFont(new Font("宋体",Font.BOLD,25));
    buttonClear.setForeground(Color.black);
    buttonClear.addActionListener(this);
    buttonUserLogin = new JButton("注册");
    buttonUserLogin.setFont(new Font("宋体",Font.BOLD,25));
    buttonUserLogin.setForeground(Color.black);
    buttonUserLogin.addActionListener(this);

    gbl = new GridBagLayout();
    gbc = new GridBagConstraints();
    panel.setLayout(gbl);
    
    gbc.gridx = 0;
    gbc.gridy = 0;
    gbc.gridwidth = 0;
    gbc.gridheight = 1;
    gbl.setConstraints(labelWelcomeLogin,gbc);
    panel.add(labelWelcomeLogin);

    gbc.gridx = 1;
    gbc.gridy = 1;
    gbc.gridwidth = 1;
    gbc.gridheight = 1;
    gbl.setConstraints(labelUserName,gbc);
    panel.add(labelUserName);
    
    gbc.gridx = 2;
    gbc.gridy = 1;
    gbc.gridwidth = 1;
    gbc.gridheight = 1;
    gbl.setConstraints(textFieldUserName,gbc);
    panel.add(textFieldUserName);
    
    gbc.gridx = 1;
    gbc.gridy = 2;
    gbc.gridwidth = 1;
    gbc.gridheight = 1;
    gbl.setConstraints(labelUserPassword,gbc);
    panel.add(labelUserPassword);
     
    gbc.gridx = 2;
    gbc.gridy = 2;
    gbc.gridwidth = 1;
    gbc.gridheight =1;
    gbl.setConstraints(textUserPassword,gbc);
    panel.add(textUserPassword);
     
    gbc.gridx = 1;
    gbc.gridy = 3;
    gbc.gridwidth = 1;
    gbc.gridheight = 1;
    gbl.setConstraints(buttonLogin,gbc);
    panel.add(buttonLogin);
    
    gbc.gridx = 2;
    gbc.gridy = 3;
    gbc.gridwidth = 1;
    gbc.gridheight = 1;
    gbl.setConstraints(buttonClear,gbc);
    panel.add(buttonClear);
    
    gbc.gridx = 3;
    gbc.gridy = 3;
    gbc.gridwidth = 1;
    gbc.gridheight = 1;
    gbl.setConstraints(buttonUserLogin,gbc);
    panel.add(buttonUserLogin);
 
    frame2.getContentPane().add(panel);
    frame2.setSize(450,320);
    frame2.setVisible(true);
    frame2.setResizable(false);
    frame2.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);   
   }
   public static void main(String args[]){
     new Login();
    }
  public void actionPerformed(ActionEvent e){
    if(e.getSource() == buttonLogin){
       new ChatClient();
       System.out.println(textFieldUserName.getText()+"用户登录成功!!");
       userName = textFieldUserName.getText();
     }else{
        System.out.println("请你先注册后登录!!");
     }
   if(e.getSource() == buttonClear){
     textFieldUserName.setText(" ");
     textUserPassword.setText(" ");
    }
   if(e.getSource()==buttonUserLogin){
     new ChatClientLogin();
    }
  }
 /*********************聊天室主界面*******************/
class ChatClient extends JFrame implements ActionListener,Runnable{
  JFrame frame = new JFrame("蓝天在线聊天室客户主界面");
  JPanel panel;
  GridBagLayout gbl;
  GridBagConstraints gbc;
  JLabel labelChatWindow; 
  JLabel labelOnLineUser;
  JLabel labelSendMessage;
  JTextArea  textAreaChat;
  JTextArea  textAreaOnLineUser;
  JTextField textFieldSendMessage;
  JComboBox comboBox,comboBoxName;
  JScrollPane scrollPaneTextAreaChat,scrollPaneOnLineUser;
  JButton buttonSend;
  JRadioButton buttonPublic;
  JRadioButton buttonPrivate;
  JButton buttonClear;
  JButton buttonExit;
  Socket socket;
  Thread thread = new Thread(this);
  public ChatClient(){
     panel = new JPanel();
     gbl = new GridBagLayout(); 
     gbc = new GridBagConstraints();
     panel.setLayout(gbl);
     panel.setBackground(Color.orange);
      
     labelChatWindow = new JLabel("聊城欢迎用户进入社区!");
     labelChatWindow.setFont(new Font("宋体",Font.BOLD,26));
     labelChatWindow.setForeground(Color.black);
     labelOnLineUser = new JLabel("在线用户:");
     labelOnLineUser.setFont(new Font("宋体",Font.BOLD,26));
     labelOnLineUser.setForeground(Color.black);
     labelSendMessage = new JLabel("发送消息:");
     labelSendMessage.setForeground(Color.black);
     textAreaChat = new JTextArea(23,42);
     textAreaOnLineUser = new JTextArea(23,18);  
     textFieldSendMessage = new JTextField(37);
     comboBox = new JComboBox(new String []{"对大家说 ","对你悄悄地说"});
     comboBoxName = new JComboBox();
     comboBoxName.addItem("对大家说：");

     scrollPaneTextAreaChat = new JScrollPane(textAreaChat); 
     scrollPaneOnLineUser = new JScrollPane(textAreaOnLineUser);
     buttonSend = new JButton("发送 ");
     buttonSend.setFont(new Font("宋体",Font.BOLD,18));
     buttonSend.setForeground(Color.black);
     buttonSend.addActionListener(this);
     buttonPublic = new JRadioButton("公聊");
     buttonPublic.setForeground(Color.black);
     buttonPublic.addActionListener(this);
     buttonPrivate = new JRadioButton("私聊");
     buttonPrivate.setForeground(Color.black);
     buttonPrivate.addActionListener(this);
     buttonClear = new JButton("清空");
     buttonClear.setFont(new Font("宋体",Font.BOLD,18));
     buttonClear.setForeground(Color.black);
     buttonClear.addActionListener(this);
     buttonExit = new JButton("关闭");
     //buttonExit.setFont(new Font("宋体",Font.BOLD,18));
     buttonExit.setForeground(Color.black);
     buttonExit.addActionListener(this);

     gbc.fill = GridBagConstraints.NONE;     
     gbc.anchor = GridBagConstraints.WEST;
     gbc.weightx =0.1;
     gbc.weighty =1;
     gbc.gridx =2;
     gbc.gridy =0;
     gbc.gridwidth =1;
     gbc.gridheight = 1;
     gbl.setConstraints(labelChatWindow,gbc);
     panel.add(labelChatWindow); 

     gbc.gridx =0;
     gbc.gridy =1;
     gbc.gridwidth =4;
     gbc.gridheight =1;
     gbl.setConstraints(scrollPaneTextAreaChat,gbc);
     panel.add(scrollPaneTextAreaChat);
          
     gbc.anchor = GridBagConstraints.CENTER;
     gbc.gridx =4;
     gbc.gridy =0;
     gbc.gridwidth =1;
     gbc.gridheight = 1;
     gbl.setConstraints(labelOnLineUser,gbc);
     panel.add(labelOnLineUser);

     gbc.anchor = GridBagConstraints.EAST;
     gbc.gridx =4;
     gbc.gridy =1;
     gbc.gridwidth =1;
     gbc.gridheight =1;
     gbl.setConstraints(scrollPaneOnLineUser,gbc);
     panel.add(scrollPaneOnLineUser);
     
     gbc.anchor = GridBagConstraints.WEST;
     gbc.gridx = 0;
     gbc.gridy = 2 ;
     gbc.gridwidth = 1;
     gbc.gridheight = 1;
     gbl.setConstraints(labelSendMessage,gbc);
     panel.add(labelSendMessage);

     gbc.gridx = 1;
     gbc.gridy = 2;
     gbc.gridwidth =3;
     gbc.gridheight = 1;
     gbl.setConstraints(textFieldSendMessage,gbc);
     panel.add(textFieldSendMessage);
      
     gbc.gridx = 4;
     gbc.gridy = 2;
     gbc.gridwidth = 1;
     gbc.gridheight = 1;
     gbl.setConstraints(comboBox,gbc);
     panel.add(comboBox);

     gbc.gridy = 3;
     gbc.gridwidth = 1;
     gbc.gridheight = 1;
     gbl.setConstraints(buttonClear,gbc);
     panel.add(buttonClear);
      
     gbc.gridx = 1;
     gbc.gridy = 3;
     gbc.gridwidth = 1;
     gbc.gridheight = 1;
     gbl.setConstraints(buttonSend,gbc);
     panel.add(buttonSend);
 
     gbc.gridx = 2;
     gbc.gridy = 3;
     gbc.gridwidth = 1;
     gbc.gridheight = 1;
     gbl.setConstraints(buttonPublic,gbc);
     panel.add(buttonPublic);
     
     gbc.gridx = 3;
     gbc.gridy = 3;
     gbc.gridwidth = 1;
     gbc.gridheight = 1;
     gbl.setConstraints(buttonPrivate,gbc);
     panel.add(buttonPrivate);

     gbc.anchor = GridBagConstraints.EAST;     
     gbc.gridx = 4;
     gbc.gridy = 3;
     gbc.gridwidth = 1;
     gbc.gridheight = 1;
     gbl.setConstraints(buttonExit,gbc);
     panel.add(buttonExit);
      
     thread.start();
     frame.getContentPane().add(panel);
     frame.setSize(680,570);
     frame.setVisible(true);
     frame.setResizable(false);
     frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
    }
  public void run(){
    try{
      StringTokenizer tokenizer;
      String string;
      InetAddress address=InetAddress.getByName(null); 
      Socket socket=new Socket(address,ChatServer.PORT);
      try{
        input = new BufferedReader(new InputStreamReader(socket.getInputStream()));
        output = new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())),true); 
        output.println(userName);
        output.flush();       			       				
        while(true){
          string = input.readLine();
          tokenizer = new StringTokenizer(string,"\t");  
          loginName = tokenizer.nextToken();
          if(loginName.equals("^userName^")){
            loginName = tokenizer.nextToken();
            loginNameList.add(loginName);
            textAreaOnLineUser.setText("");
            for(int i = 0;i< loginNameList.size();i++){
               textAreaOnLineUser.append("欢迎" + " " + loginNameList.get(i) + " " + "用户聊天！\n");
            }
           }else{  
             if(loginName.length()!=0){        
               textAreaChat.append(string + "\n");
           }
         }
       }
     }catch(Exception e){}			
   
    }catch(IOException e){} 
  }
  public void actionPerformed(ActionEvent e){
    if(e.getSource() == buttonSend){
      if((textFieldSendMessage.getText().length()) != 0){
         try{
           if(comboBoxName.getSelectedItem().equals(loginName)){
             JOptionPane.showMessageDialog(null,"请不要同自己说话! ! !","错误操作",JOptionPane.INFORMATION_MESSAGE);
           }else{
            output.println(userName + "  " + (String)comboBoxName.getSelectedItem() + " " + textFieldSendMessage.getText());
            output.flush();
            textFieldSendMessage.setText("");
           }
         }catch(Exception ex){
            textAreaChat.append( textFieldSendMessage.getText() + "发送消息失败!");
         }
      }
    }
    if(e.getSource() == buttonClear){
      textFieldSendMessage.setText("");
    }
    if(e.getSource() == buttonExit){ 
      System.exit(1);
    }
  }
         
 }
}