clientform.java

简单的聊天系统chat,用java编写

\\ClientForm.java  
  import   java.awt.*;  
  import   java.awt.event.*;  
  import   javax.swing.*;  
  import   java.rmi.*;  
  import   java.rmi.server.*;  
   
  public   class   ClientForm   extends   JFrame  
  {  
          private   ChatViewer   chat;  
          private   JTextField   msgeditor;  
          private   JButton   msgsender;  
          private   Container   contentpane;  
          private   JPanel   panel;  
          private   ServerForChatInterface   server;  
   
          public   ClientForm(String   serveraddress,int   port)  
          {  
    super("简易聊天室");    
    System.out.println("connect   to   server...");  
    try{  
              this.server   =   (ServerForChatInterface)Naming.lookup("rmi://"+serveraddress+":"+port+"/ChatServer");  
            }catch(Exception   e){  
          System.out.println("不能连接到服务器.");  
          System.exit(0);  
          }  
    this.initializedComponent();  
    this.fireEvent();  
    this.registChatViewer();  
            }  
          private   void   initializedComponent()  
          {  
    this.chat   =   new   ChatViewer("<font   color='blue'>欢迎进入聊天室</font>");  
    this.msgeditor   =   new   JTextField();  
    this.msgsender   =   new   JButton("发送");  
    this.panel   =   new   JPanel();  
    this.panel.setLayout(new   BorderLayout());  
    this.panel.add(this.msgeditor,BorderLayout.CENTER);  
    this.panel.add(this.msgsender,BorderLayout.EAST);  
    this.contentpane   =   this.getContentPane();  
    this.contentpane.setLayout(new   BorderLayout());  
    this.contentpane.add(this.chat,BorderLayout.CENTER);  
    this.contentpane.add(this.panel,BorderLayout.SOUTH);  
    this.setSize(600,400);  
    this.setVisible(true);  
            }  
          private   void   fireEvent()  
          {  
                  MessageSender   ms   =   new   MessageSender();  
    this.msgeditor.addActionListener(ms);  
    this.msgsender.addActionListener(ms);  
    this.msgeditor.grabFocus();  
            }  
          private   void   chat()  
          {  
    String   msg   =   this.msgeditor.getText();  
    this.msgeditor.setText("");  
    try{  
            this.server.chat(msg);  
            }catch(Exception   e){  
          this.chat.appendChatContent("<font   color='red'><b>发送消息失败,请检查网络.</b></font>");  
          }  
            }  
          private   void   registChatViewer()  
          {  
    try{  
            UnicastRemoteObject.exportObject((ChatViewerInterface)(this.chat));  
            this.server.regist((ChatViewerInterface)(this.chat));  
            }catch(Exception   e){  
          this.chat.appendChatContent("<font   color='red'><b>连接服务器失败,请检查网络.</b></font>");  
          }  
            }  
          class   MessageSender   implements   ActionListener  
          {  
    public   void   actionPerformed(ActionEvent   e)  
    {  
            chat();  
      }  
            }  
          public   static   void   main(String   args[])  
          {  
                String   serveraddress   =   "127.0.0.1";  
                int   port   =   1099;  
                if(args!=null&&args.length==2)  
                {  
                      serveraddress   =   args[0];  
        try{  
                  port   =   Integer.parseInt(args[1]);  
                }catch(Exception   e){}  
                  }  
                ClientForm   client   =   new   ClientForm(serveraddress,port);  
            }  
    }