监听调试web service的好工具TCPMon

一般的远程监控软件都是用c或者c++等语言开发的，而使用java如何来实现相同的功能呢。 

首先我们先介绍一下一个简单的远程监控程序的实现原理。 

功能一，远程屏幕监视 
(1) 必须要有监控端与被监控端，而且程序保持启动。 
(2) 被监控端获取本机的屏幕截屏发图给监控端。 
(3) 监控端在本地窗口中显示被监控端发送过来的图像。 
(4) (2)(3)步骤重复执行，这时在监控端即可实时监视到被监控端的桌面操作了。 

功能二，远程控制 
(1) 必须要有监控端与被监控端，而且程序保持启动。 
(2) 在监控端监视窗体上执行鼠标点击事件。 
(3) 记录步骤 (2)中的鼠标点击的坐标，及键值发送到被监控端。 
(4) 被监控接受鼠标坐标，及键值，然后再本地屏幕上模拟同样的点击动作。 

OK，现在看下具体的java与语言是如何实现上述功能的。 

使用java语言要实现截屏的功能就要依靠java类库中的一个有趣的类 
java.awt.Robot类【俗称Java机器人】了 


功能一，远程屏幕监视 
//『客户端』抓取屏幕快照GuiCamera.java

 

            BufferedImage screenshot =
                    (new Robot()).createScreenCapture(
                            new Rectangle(0, 0, (int) size.getWidth(),
                                          (int) size.getHeight()));
          

BufferedImage screenshot =
        (new Robot()).createScreenCapture(
                new Rectangle(0, 0, (int) size.getWidth(),
                              (int) size.getHeight()));

//『客户端』发送快照 SendThread.java

 

             image=gc.snapShot();
               //保存为临时文件
               File file=new File("temp.png");
               FileOutputStream fileout=new FileOutputStream(file);
               ImageIO.write(image,"png",fileout);
               fileout.close();
               
               //读取图像
               FileInputStream fileIn=new FileInputStream(file);
               int len=(int)file.length();

              //建立字节数组
               byte[] buf=new byte[len];
               fileIn.read(buf,0,len);

               //发送
               out.write(buf,0,len);
               out.flush();
               
               //间隔500毫秒
               Thread.sleep(500);
            

image=gc.snapShot();
  //保存为临时文件
  File file=new File("temp.png");
  FileOutputStream fileout=new FileOutputStream(file);
  ImageIO.write(image,"png",fileout);
  fileout.close();

  //读取图像
  FileInputStream fileIn=new FileInputStream(file);
  int len=(int)file.length();

 //建立字节数组
  byte[] buf=new byte[len];
  fileIn.read(buf,0,len);

  //发送
  out.write(buf,0,len);
  out.flush();

  //间隔500毫秒
  Thread.sleep(500);

//『监控端』接受图像，Snap.java 

 public void run() {
 while (flag) {
                    byte[] buf = new byte[102400];
                    try {

                        imgStream = new BufferedInputStream(
                                socket.getInputStream());
                        imgStream.read(buf);
                        ImageIcon icon = new ImageIcon(Toolkit.
                                getDefaultToolkit().
                                createImage(buf));
                        lab.setIcon(icon);

                        File file = new File("1.jpg");
                        FileOutputStream fileOut = new FileOutputStream(file);
                        fileOut.write(buf);
                        fileOut.close();

                        repaint();
                        setVisible(true);
                        System.out.println("读取图象成功!");
                    } catch (Exception ex) {
                        ex.printStackTrace();
                        flag = false;
                    }
                }
                System.out.println("服务器停止");
            }
}

public void run() {
while (flag) {
                   byte[] buf = new byte[102400];
                   try {

                       imgStream = new BufferedInputStream(
                               socket.getInputStream());
                       imgStream.read(buf);
                       ImageIcon icon = new ImageIcon(Toolkit.
                               getDefaultToolkit().
                               createImage(buf));
                       lab.setIcon(icon);

                       File file = new File("1.jpg");
                       FileOutputStream fileOut = new FileOutputStream(file);
                       fileOut.write(buf);
                       fileOut.close();

                       repaint();
                       setVisible(true);
                       System.out.println("读取图象成功!");
                   } catch (Exception ex) {
                       ex.printStackTrace();
                       flag = false;
                   }
               }
               System.out.println("服务器停止");
           }

功能二，远程控制 


『监控端』记录鼠标操作Snap.java

//内部类，主要功能监听鼠标事件。记录坐标。
class keyAdapet extends KeyAdapter
    { //键盘监听适配器
        public void keyTyped(KeyEvent e) {

            if (e.getKeyChar() == 27) { //按ESC键
                Object[] options = {
                                   "确定",
                                   "取消"};
                int n = JOptionPane.showOptionDialog(null,
                        "是否退出程序?",
                        "远程监控系统",
                        JOptionPane.OK_CANCEL_OPTION,
                        JOptionPane.QUESTION_MESSAGE,
                        null, //don't use a custom Icon
                        options, //the titles of buttons
                        options[0]);
                if (0 == n) {
                    System.exit(0);
                }
            }

        }
    }

      
        public void mouseClicked(MouseEvent e) {

            System.out.println("双击了鼠标");
            int x = e.getX();
            int y = e.getY();
            if (tempSocket != null) {
                new CommandMsg("2", tempSocket, x, y).start();
            }
        }

        public void mousePressed(MouseEvent e) {
            if (e.BUTTON1 == MouseEvent.BUTTON1) {
                System.out.println("你按了鼠标左键~~~~~~~~~~~");
                int x = e.getX();
                int y = e.getY();
                if (tempSocket != null) {
                    new CommandMsg("3", tempSocket, x, y).start();
                }
            }
        }

       ......
   }

//内部类，主要功能监听鼠标事件。记录坐标。
class keyAdapet extends KeyAdapter
    { //键盘监听适配器
        public void keyTyped(KeyEvent e) {

            if (e.getKeyChar() == 27) { //按ESC键
                Object[] options = {
                                   "确定",
                                   "取消"};
                int n = JOptionPane.showOptionDialog(null,
                        "是否退出程序?",
                        "远程监控系统",
                        JOptionPane.OK_CANCEL_OPTION,
                        JOptionPane.QUESTION_MESSAGE,
                        null, //don't use a custom Icon
                        options, //the titles of buttons
                        options[0]);
                if (0 == n) {
                    System.exit(0);
                }
            }

        }
    }


        public void mouseClicked(MouseEvent e) {

            System.out.println("双击了鼠标");
            int x = e.getX();
            int y = e.getY();
            if (tempSocket != null) {
                new CommandMsg("2", tempSocket, x, y).start();
            }
        }

        public void mousePressed(MouseEvent e) {
            if (e.BUTTON1 == MouseEvent.BUTTON1) {
                System.out.println("你按了鼠标左键~~~~~~~~~~~");
                int x = e.getX();
                int y = e.getY();
                if (tempSocket != null) {
                    new CommandMsg("3", tempSocket, x, y).start();
                }
            }
        }

       ......
   }

『监控端』发送坐标Snap.java 

public void run() {
                out.println(eventType + "," + x + "," + y);
                out.flush();
}

public void run() {
                out.println(eventType + "," + x + "," + y);
                out.flush();
}

『客户端』获取鼠标坐标后，在本机相同坐标位置模拟一个鼠标点击操作 Coop.java

public void run() {
        while (flag) {
            try {
                String s = in.readLine();
                decode(s);
                switch (method) {
                //这里的man实际也是Robot的一个实例。
                case 1:
                    man.mouseMove(x, y);
                    break;
                case 2:
                    man.mouseMove(x, y);
                    man.mousePress(InputEvent.BUTTON1_MASK);
                    man.mouseRelease(InputEvent.BUTTON1_MASK);
                    break;
                case 3:
                    man.mousePress(InputEvent.BUTTON1_MASK);
                    break;
                case 4:
                    man.mouseRelease(InputEvent.BUTTON1_MASK);
                    break;
                default:
                    break;
                }

            } catch (IOException exe) {
                ThreadInfo.CoopIsLive=false;
                flag=false;
                exe.printStackTrace();
            }
        }
    }

public void run() {
        while (flag) {
            try {
                String s = in.readLine();
                decode(s);
                switch (method) {
                //这里的man实际也是Robot的一个实例。
                case 1:
                    man.mouseMove(x, y);
                    break;
                case 2:
                    man.mouseMove(x, y);
                    man.mousePress(InputEvent.BUTTON1_MASK);
                    man.mouseRelease(InputEvent.BUTTON1_MASK);
                    break;
                case 3:
                    man.mousePress(InputEvent.BUTTON1_MASK);
                    break;
                case 4:
                    man.mouseRelease(InputEvent.BUTTON1_MASK);
                    break;
                default:
                    break;
                }

            } catch (IOException exe) {
                ThreadInfo.CoopIsLive=false;
                flag=false;
                exe.printStackTrace();
            }
        }
    }

 

代码的部分就介绍到这里，由于java语言的一些限制，本实例仅作为演示。有感兴趣的朋友可以下载附件中的程序做进一步参考。远程监控2.zip (227.9 KB)

 

原帖地址 http://www.javaeye.com/topic/200963