java实现远程桌面的实例代码
控制端将鼠标事件传递到服务端
服务端拿到鼠标事件之后传输到客户端
客户端拿到鼠标事件之后，通过robot类即可完成，并且截屏将图片发给服务器，服务器再发给控制端
被我简化之后得到
//先介绍一下robot类的简单使用import java.awt.AWTException;import java.awt.Robot;import java.awt.event.InputEvent;/** * 使用robot * @author 哑元 * */public class RobotTest { public static void main(String[] args) throws AWTException { Robot r = new Robot(); r.mouseMove(300, 500);//鼠标移动 r.mousePress(InputEvent.BUTTON1_MASK ); //鼠标按下 r.mouseRelease(InputEvent.BUTTON1_MASK);//鼠标松开 r.keyPress((int)'A'); //键盘按下 (int)'A'表示将A转换成键盘对应的key r.keyRelease((int)'A'); //键盘松开 }}//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;/** * 抓取本地桌面图片 * @author 哑元 * */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); //四个参数x y width height jframe.setVisible(true); jframe.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE ); //构建一个死循环动态截取 while(true){ BufferedImage image = robot.createScreenCapture(new Rectangle(0,0,1366,768));//截取屏幕 label.setIcon(new ImageIcon(image)); Thread.sleep(50); } }}//远程控制原理讲解
//分为server端和client端，
//原本server端只作为转发，作为演示，就不写转发
//也就是client端控制server端E
/**
* 这里我采用的是，在client端也就是操控端，接收到server端发送过来的screen之后，然后发送鼠标事件过去
* 然后再用robot处理
* 传输方式用socket+io即可处理
* 屏幕截取和图片压缩采用了robot的屏幕截取功能和jdk自带的图片编码器，将其转换成一个字节数组
* 发送给server端之后，robot通过io+socket可以直接拿到object对象，强制转换成InputEvent(keyEvent和MouseEvent都继承)之后
* 通过判断event类型，分别处理即可，这里在服务端需要用到两个线程，一个是屏幕截取和发送给客户端，一个是用来监听客户端
* 传递过来的事件
*/
//下面是具体实现代码
//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;/** * 服务端 * @author 哑元 * */public class Server { public static void main(String[] args) throws IOException { ServerSocket server = new ServerSocket(80); System.out.println("服务器已经正常启动"); Socket socket = server.accept();//等待接收请求,阻塞方法 System.out.println("有客户端连接"); DataOutputStream dos = new DataOutputStream(socket.getOutputStream()); //将客户端与服务器端链接的输出流交个ImageThread处理 ImageThread imageThread = new ImageThread(dos); new Thread(imageThread).start(); new Thread(new EventThread(new ObjectInputStream(socket.getInputStream()))).start(); }}/** * 用来处理接收过来的鼠标事件或者键盘事件 */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();//得知由客户端传递过来的是一个object对象 actionEvent(event);//处理事件 } } catch (AWTException e) { e.printStackTrace(); } catch (ClassNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); }finally{ try { ois.close(); } catch (IOException e) { e.printStackTrace(); } } } /** * 事件处理，用来判断事件类型，并用robot类执行 * @param event */ public void actionEvent(InputEvent event){ System.out.println(event); if(event instanceof KeyEvent){ KeyEvent e = (KeyEvent)event; int type = e.getID();//拿到事件类型 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());//鼠标拖动 } } } /** * 返回鼠标的真正事件，鼠标时间不能直接处理，需要进过转换 * @return */ public int getMouseKey(int button){ if(button == MouseEvent.BUTTON1){//鼠标左键 return InputEvent.BUTTON1_MASK; }else if(button == MouseEvent.BUTTON2){//鼠标右键 return InputEvent.BUTTON2_MASK; }else if(button == MouseEvent.BUTTON3){//滚轮 return InputEvent.BUTTON3_MASK; }else{ return 0; } }}//屏幕截取器和发送器，这里需要拿到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.*;/** * 用来将图片数据发送 * @author 哑元 * */public class ImageThread implements Runnable{ DataOutputStream dos = null; //数据输出流 public ImageThread(DataOutputStream dos){ this.dos = dos; } @Override public void run() { try { Robot robot = new Robot(); //截取整个屏幕 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); //线程睡眠 } } 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(); } } } /** * 压缩图片 * @param 需要压缩的图片 * @return 压缩后的byte数组 * @throws IOException * @throws ImageFormatException */ public byte[] getImageBytes(BufferedImage image) throws ImageFormatException, IOException{ ByteArrayOutputStream baos = new ByteArrayOutputStream(); //压缩器压缩，先拿到存放到byte输出流中 JPEGImageEncoder jpegd = JPEGCodec.createJPEGEncoder(baos); //将iamge压缩 jpegd.encode(image); //转换成byte数组 return baos.toByteArray(); }}--------------------------------------------------------------------------------------//client端，用来接收creen图片和发送鼠标事件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;/** * 客户端 * @author 哑元 * */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()]; //先拿到传过来的数组长度 dis.readFully(imageBytes); //所有的数据存放到byte中 cw.repainImage(imageBytes); } }}/** * 客户端窗体 * @author 哑元 * */class ClientWindow extends JFrame{ private ObjectOutputStream oos; private JLabel label; //重写背景图片方法 public void repainImage(byte [] imageBytes){ label.setIcon(new ImageIcon(imageBytes)); this.repaint(); } public ClientWindow(ObjectOutputStream oos){ this.oos = oos; this.setTitle("远程控制程序"); label = new JLabel(); JPanel p = new JPanel(); p.add(label); JScrollPane scroll = new JScrollPane(p);//给p面板添加滚动条 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(); } }}以上这篇java实现远程桌面的实例代码就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持武林网。