java實現遠程桌面的實例代碼

java實現遠程桌面的實例代碼

控制端將鼠標事件傳遞到服務端

服務端拿到鼠標事件之後傳輸到客戶端

客戶端拿到鼠標事件之後，通過robot類即可完成，並且截屏將圖片發給服務器，服務器再發給控制端

被我簡化之後得到

//先介紹一下robot類的簡單使用import java.awt.AWTException;import java.awt.Robot;import java.awt.event.InputEvent;/** * 使用robot * @author 啞元* */public class RobotTest { public static void main(String[] args) throws AWTException { Robot r = new Robot(); r.mouseMove(300, 500);//鼠標移動r.mousePress(InputEvent.BUTTON1_MASK ); //鼠標按下r.mouseRelease(InputEvent.BUTTON1_MASK);//鼠標鬆開r.keyPress((int)'A'); //鍵盤按下(int)'A'表示將A轉換成鍵盤對應的key r.keyRelease((int)'A'); //鍵盤鬆開}}//屏幕抓取import java.awt.AWTException;import java.awt.Rectangle;import java.awt.Robot;import java.awt.image.BufferedImage;import javax.swing.ImageIcon;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.WindowConstants;/** * 抓取本地桌面圖片* @author 啞元* */public class ScreenTest { public static void main(String[] args) throws AWTException, InterruptedException { Robot robot = new Robot(); JFrame jframe = new JFrame(); jframe.setSize(1200, 700); JLabel label = new JLabel(); jframe.add(label); //四個參數xy width height jframe.setVisible(true); jframe.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE ); //構建一個死循環動態截取while(true){ BufferedImage image = robot.createScreenCapture(new Rectangle(0,0,1366,768));//截取屏幕label.setIcon(new ImageIcon(image)); Thread.sleep(50); } }}

//遠程控制原理講解
//分為server端和client端，
//原本server端只作為轉發，作為演示，就不寫轉發
//也就是client端控制server端E
/**
* 這裡我採用的是，在client端也就是操控端，接收到server端發送過來的screen之後，然後發送鼠標事件過去
* 然後再用robot處理
* 傳輸方式用socket+io即可處理
* 屏幕截取和圖片壓縮採用了robot的屏幕截取功能和jdk自帶的圖片編碼器，將其轉換成一個字節數組
* 發送給server端之後，robot通過io+socket可以直接拿到object對象，強制轉換成InputEvent(keyEvent和MouseEvent都繼承)之後
* 通過判斷event類型，分別處理即可，這裡在服務端需要用到兩個線程，一個是屏幕截取和發送給客戶端，一個是用來監聽客戶端
* 傳遞過來的事件
*/

//下面是具體實現代碼

//server主程import java.awt.AWTException;import java.awt.Event;import java.awt.Robot;import java.awt.event.InputEvent;import java.awt.event.KeyEvent;import java.awt.event.MouseEvent;import java.io.DataOutputStream;import java.io.IOException;import java.io.ObjectInputStream;import java.net.ServerSocket;import java.net.Socket;/** * 服務端* @author 啞元* */public class Server { public static void main(String[] args) throws IOException { ServerSocket server = new ServerSocket(80); System.out.println("服務器已經正常啟動"); Socket socket = server.accept();//等待接收請求,阻塞方法System.out.println("有客戶端連接"); DataOutputStream dos = new DataOutputStream(socket.getOutputStream()); //將客戶端與服務器端鏈接的輸出流交個ImageThread處理ImageThread imageThread = new ImageThread(dos); new Thread(imageThread).start(); new Thread(new EventThread(new ObjectInputStream(socket.getInputStream()))).start(); }}/** * 用來處理接收過來的鼠標事件或者鍵盤事件*/class EventThread implements Runnable{ private ObjectInputStream ois; private Robot robot; public EventThread(ObjectInputStream ois) { this.ois = ois; } @Override public void run() { try { robot = new Robot(); while(true){ InputEvent event = (InputEvent)ois.readObject();//得知由客戶端傳遞過來的是一個object對象actionEvent(event);//處理事件} } catch (AWTException e) { e.printStackTrace(); } catch (ClassNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); }finally{ try { ois.close(); } catch (IOException e) { e.printStackTrace(); } } } /** * 事件處理，用來判斷事件類型，並用robot類執行* @param event */ public void actionEvent(InputEvent event){ System.out.println(event); if(event instanceof KeyEvent){ KeyEvent e = (KeyEvent)event; int type = e.getID();//拿到事件類型if(type==Event.KEY_PRESS){ robot.keyPress(e.getKeyCode()); }else if(type == Event.KEY_RELEASE){ robot.keyRelease(e.getKeyCode()); } }else if(event instanceof MouseEvent){ MouseEvent e = (MouseEvent)event; int type = e.getID(); if(type == Event.MOUSE_MOVE){ robot.mouseMove(e.getX(),e.getY()); }else if(type == Event.MOUSE_DOWN){ robot.mousePress(getMouseKey(type)); }else if(type == Event.MOUSE_UP){ robot.mouseRelease(getMouseKey(type)); }else if(type == Event.MOUSE_DRAG){ robot.mouseMove(e.getX(), e.getY());//鼠標拖動} } } /** * 返回鼠標的真正事件，鼠標時間不能直接處理，需要進過轉換* @return */ public int getMouseKey(int button){ if(button == MouseEvent.BUTTON1){//鼠標左鍵return InputEvent.BUTTON1_MASK; }else if(button == MouseEvent.BUTTON2){//鼠標右鍵return InputEvent.BUTTON2_MASK; }else if(button == MouseEvent.BUTTON3){//滾輪return InputEvent.BUTTON3_MASK; }else{ return 0; } }}//屏幕截取器和發送器，這裡需要拿到socket的out流import java.awt.AWTException;import java.awt.Dimension;import java.awt.Rectangle;import java.awt.Robot;import java.awt.Toolkit;import java.awt.image.BufferedImage;import java.io.ByteArrayOutputStream;import java.io.DataOutputStream;import java.io.IOException;import com.sun.image.codec.jpeg.*;/** * 用來將圖片數據發送* @author 啞元* */public class ImageThread implements Runnable{ DataOutputStream dos = null; //數據輸出流public ImageThread(DataOutputStream dos){ this.dos = dos; } @Override public void run() { try { Robot robot = new Robot(); //截取整個屏幕Dimension dimension = Toolkit.getDefaultToolkit().getScreenSize(); /* int width = (int)dimension.getWidth(); int height = (int)dimension.getWidth(); Rectangle rec = new Rectangle(0,0,width,height); */ Rectangle rec = new Rectangle(dimension); BufferedImage image; byte imageBytes[]; while(true){ image = robot.createScreenCapture(rec); imageBytes = getImageBytes(image); dos.writeInt(imageBytes.length); dos.write(imageBytes); dos.flush(); Thread.sleep(50); //線程睡眠} } catch (AWTException e) { e.printStackTrace(); } catch (ImageFormatException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } catch (InterruptedException e) { e.printStackTrace(); }finally{ try { if(dos!= null) dos.close(); } catch (IOException e) { e.printStackTrace(); } } } /** * 壓縮圖片* @param 需要壓縮的圖片* @return 壓縮後的byte數組* @throws IOException * @throws ImageFormatException */ public byte[] getImageBytes(BufferedImage image) throws ImageFormatException, IOException{ ByteArrayOutputStream baos = new ByteArrayOutputStream(); //壓縮器壓縮，先拿到存放到byte輸出流中JPEGImageEncoder jpegd = JPEGCodec.createJPEGEncoder(baos); //將iamge壓縮jpegd.encode(image); //轉換成byte數組return baos.toByteArray(); }}--------------------------------------------------------------------------------------//client端，用來接收creen圖片和發送鼠標事件import java.awt.event.InputEvent;import java.awt.event.KeyEvent;import java.awt.event.KeyListener;import java.awt.event.MouseEvent;import java.awt.event.MouseListener;import java.io.DataInputStream;import java.io.IOException;import java.io.ObjectOutputStream;import java.net.Socket;import java.net.UnknownHostException;import javax.swing.ImageIcon;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JPanel;import javax.swing.JScrollPane;import javax.swing.WindowConstants;/** * 客戶端* @author 啞元* */public class Client { public static void main(String args[]) throws UnknownHostException, IOException{ Socket s = new Socket("127.0.0.1",80); DataInputStream dis = new DataInputStream(s.getInputStream()); ObjectOutputStream oos = new ObjectOutputStream(s.getOutputStream()); ClientWindow cw = new ClientWindow(oos); byte[] imageBytes; while(true){ imageBytes = new byte[dis.readInt()]; //先拿到傳過來的數組長度dis.readFully(imageBytes); //所有的數據存放到byte中cw.repainImage(imageBytes); } }}/** * 客戶端窗體* @author 啞元* */class ClientWindow extends JFrame{ private ObjectOutputStream oos; private JLabel label; //重寫背景圖片方法public void repainImage(byte [] imageBytes){ label.setIcon(new ImageIcon(imageBytes)); this.repaint(); } public ClientWindow(ObjectOutputStream oos){ this.oos = oos; this.setTitle("遠程控製程序"); label = new JLabel(); JPanel p = new JPanel(); p.add(label); JScrollPane scroll = new JScrollPane(p);//給p面板添加滾動條this.add(scroll); this.setSize(1024,768); this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); this.setVisible(true); this.addKeyListener(new KeyListener() { @Override public void keyTyped(KeyEvent e) { // TODO Auto-generated method stub } @Override public void keyReleased(KeyEvent e) { sendEvent(e); } @Override public void keyPressed(KeyEvent e) { sendEvent(e); } }); label.addMouseListener(new MouseListener() { @Override public void mouseReleased(MouseEvent e) { sendEvent(e); } @Override public void mousePressed(MouseEvent e) { sendEvent(e); } @Override public void mouseClicked(MouseEvent e) { sendEvent(e); } @Override public void mouseEntered(MouseEvent e) { // TODO Auto-generated method stub } @Override public void mouseExited(MouseEvent e) { // TODO Auto-generated method stub } }); } public void sendEvent(InputEvent event){ try { oos.writeObject(event); } catch (IOException e) { e.printStackTrace(); } }}

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