java實現電腦遠程控制完整源代碼

Java JDK1.4 的Robot對象，該對象能夠完成屏幕圖像截取操做，控制鼠標，鍵盤，如此即可以垂手可得地實現遠程服務器的控制。本文向你們介紹如何用Java Robot對象實現遠程服務器的控制，並給出了相應的Java源代碼。

實現原理：

   （1）被控端經過Robot截取桌面圖像經過socket通訊傳給主控端。
   （2）主控端顯示被控端桌面，而且把基於被控端圖像上的鍵盤，鼠標事件經過socket通訊傳給被控端。
    （3）被控端響應主控端的鼠標鍵盤事件。

實現詳解： 

    （一）主控端和被控端經過UDP進行指令交互
         /*-主控端向被控端發送指令-*/
        String command = ...;   //指令
        InetAddress inet = ...; //被控端地址
        int port = ...;         //端口
        byte sp[] = command.getBytes(); 
         DatagramPacket packet = new DatagramPacket(sp,sp.length(),inet,port);
        DatagramSocket sd = new DatagramSocket();
        sd.send(packet);
        /*-被控端接收指令-*/
        DatagramSocket stockUDP = ...; 
        DatagramPacket packet = ...;
         stockUDP.receive(packet);
         String message=new String(packet.getData(),0,packet.getLength()); //獲得指令   

        本程序中用到的指令
        public static final String Command_Connection = "connection" ;      //創建鏈接
        public static final String Command_Disconnection = "disconnection";//斷開鏈接
        public static final String Command_Screen = "screen";               //顯示被控端屏幕
        public static final String Command_Control="control";              //創建控制套接

   （二）被控端向主控端傳遞圖像
        /*-被控端獲取屏幕圖像-*/
        Rectangle rect = new Rectangle(Toolkit.getDefaultToolkit().getScreenSize());//全屏區域
        Robot robot=new Robot();
        BufferedImage image = robot.createScreenCapture(rect);
        /*-開啓圖像傳送線程-*/
        Socket socket = ...;
        OutputStream out = socket.getOutputStream();
        BufferedImage image ;
        JPEGImageEncoder encoder =JPEGCodec.createJPEGEncoder(out);
        ......
        public void run(){      
            while(true){
               image = ...; //獲取屏幕圖像
                encoder.encode(image); //發送圖像給主控端
                Thread.sleep(Environment.IMAGE_GETTIME); //圖像採集時間間隔
            }
        }
        /*-主控端圖像接收線程-*/
        JPEGImageDecoder de = JPEGCodec.createJPEGDecoder(socket.getInputStream());
        BufferedImage image = null ;
        ......
        public void run(){
            while(true){
                image = de.decodeAsBufferedImage();
                if (image != null) {
                     /*顯示圖像*/
                }
            }
        }

   （三）圖像顯示，鼠標，鍵盤監聽
        /*-圖像顯示-*/
        public class ControlledScreenPanel extends JPanel implements MouseMotionListener,
                                          MouseListener,MouseWheelListener ,KeyListener{
            private BufferedImage image ;

            public void setBufferedImage(BufferedImage bi) {   //更新圖像
                image = bi;
                Dimension d = new Dimension(image .getWidth(this),image .getHeight(this));
                setPreferredSize(d);
                revalidate();
                repaint();
            }

            public void paintComponent(Graphics g) {   //繪製圖像
                super.paintComponent(g);
                Dimension d = getSize();
                g.setColor(getBackground());
               g.fillRect(0, 0, d.width, d.height);
               if (image != null) {
                   g.drawImage(image , 0, 0, this);
                }
            }
        }
        /*-鼠標，鍵盤監聽-*/
        private MainControlSocket control ; //發送鼠標，鍵盤事件到被控端
        public void mouseDragged(MouseEvent e) {
            control.sendControlledAction(e);
        }

        public void mouseMoved(MouseEvent e) {
            control.sendControlledAction(e);
        }

        //--------------------------------------------------------------------------
        public void mouseClicked(MouseEvent e) {  
            requestFocus();//單擊得到焦點
        }

        public void mousePressed(MouseEvent e) { //鼠標按下
            control.sendControlledAction(e);
        }

        public void mouseReleased(MouseEvent e) { //鼠標釋放
            control.sendControlledAction(e);
        }

        public void mouseEntered(MouseEvent e) {}

        public void mouseExited(MouseEvent e) {}

        //--------------------------------------------------------------------------

        public void mouseWheelMoved (MouseWheelEvent e){ //滑輪滾動
             control.sendControlledAction(e);
        }

        //--------------------------------------------------------------------------

        public void keyTyped(KeyEvent e) {}

        public void keyPressed(KeyEvent e) { //鍵盤按下
            control.sendControlledAction(e);
        }

        public void keyReleased(KeyEvent e) { //鍵盤釋放
            control.sendControlledAction(e);
       }
        /*-發送鼠標，鍵盤事件到被控端-*/
       class MainControlSocket {
            private Socket socket = null;
            private ObjectOutputStream out = null; //事件對象發送封裝
            ......
            public void sendControlledAction(InputEvent event) {
                try {
                 out.writeObject(event);
               }
               catch (IOException e) {
                  e.printStackTrace();
               }
            }
            ......
       }

   （三）被控端接收，響應鍵盤鼠標事件
        private Socket socket = ...;
        private ObjectInputStream in = new ObjectInputStream(socket.getInputStream());
        private Robot action = new Robot();

         public void run(){
            ......
            while(true){
                Object obj = in.readObject();       //得到鼠標鍵盤事件
                if (obj != null) {
                    handleEvent( (InputEvent) obj); //處理鼠標鍵盤事件

                }
            }
            ......
        }       

        private void handleEvent(InputEvent event){
            MouseEvent mevent = null ; //鼠標事件
            MouseWheelEvent mwevent = null ;//鼠標滾動事件
            KeyEvent kevent = null ; //鍵盤事件
            int mousebuttonmask = -100; //鼠標按鍵

            switch (event.getID()){
                case MouseEvent.MOUSE_MOVED :                       //鼠標移動
                    mevent = ( MouseEvent )event ;
                    action.mouseMove( mevent.getX() , mevent.getY() );
                    break ;

                case MouseEvent.MOUSE_PRESSED :                      //鼠標鍵按下
                    mevent = ( MouseEvent ) event;
                    action.mouseMove( mevent.getX() , mevent.getY() );
                    mousebuttonmask = getMouseClick( mevent.getButton() );
                    if(mousebuttonmask != -100)
                        action.mousePress(mousebuttonmask);
                    break;

                 case MouseEvent.MOUSE_RELEASED :              //鼠標鍵鬆開
                    mevent = ( MouseEvent ) event;
                    action.mouseMove( mevent.getX() , mevent.getY() );
                    mousebuttonmask = getMouseClick( mevent.getButton() );//取得鼠標按鍵
                    if(mousebuttonmask != -100)
                        action.mouseRelease( mousebuttonmask );
                    break ;

                case MouseEvent.MOUSE_WHEEL :                  //鼠標滾動
                    mwevent = ( MouseWheelEvent ) event ;
                    action.mouseWheel(mwevent.getWheelRotation());
                    break ;

                 case MouseEvent.MOUSE_DRAGGED :                      //鼠標拖拽
                    mevent = ( MouseEvent ) event ;
                    action.mouseMove( mevent.getX(), mevent.getY() );
                    break ;

                 case KeyEvent.KEY_PRESSED :                     //按鍵
                    kevent = ( KeyEvent ) event;
                    action.keyPress( kevent.getKeyCode() );
                    break ;

                 case KeyEvent.KEY_RELEASED :                    //鬆鍵
                    kevent= ( KeyEvent ) event ;
                    action.keyRelease( kevent.getKeyCode() );
                    break ;

                default: break ;
            }
        }

        private int getMouseClick(int button) {    //取得鼠標按鍵             if (button == MouseEvent.BUTTON1) //左鍵 ,中間鍵爲BUTTON2                 return InputEvent.BUTTON1_MASK;             if (button == MouseEvent.BUTTON3) //右鍵                 return InputEvent.BUTTON3_MASK;             return -100;         }         ......      }