java通过控制鼠标实现屏幕广播的方法

本文实例讲述了java通过控制鼠标实现屏幕广播的方法。分享给大家供大家参考。具体分析如下:

在前面一篇《java实现屏幕共享功能实例分析》中提到截取屏幕时是没鼠标,为了看到教师端界面上的鼠标,可以在截取屏幕的时候,把鼠标绘制到每一张截图上去,但是由于截图的时候是一张张截取的,所以看到的鼠标难免会有点卡,之前写了java鼠标操控小程序,可以通过这种方式来看到鼠标的演示。

实现的方式也挺简单的,前面两篇文章分别实现了鼠标控制和不带鼠标的屏幕分享功能,把这两个结合一下就ok了,下面简单分析下。

服务端,将SendScreenImg和SendMouseMessage看作两个工具类,分别监听不同的端口,他们两个都实现了Thread类,我们用线程池ExecutorService类控制他们。

使用了两个端口,因为暂时还不知道该如何吧鼠标信息和图片的信息一起发送,或许可以把图片转换成字节数组的形式,把鼠标的坐标放在数组前面,不过这样的话鼠标可能也会不连贯,因为传送鼠标坐标的速度会比传图片的要快一些,嗯,有空再试试。

客户端类比上面就是了。

下面是代码:

服务端:

主程序:

/*

 * 屏幕广播类,调用了两个工具类:发送截屏信息的类和发送鼠标的信息类,利用了线程池。

 */

public class BroderCast {

    public  static void main(String[] args)

    {

        new BroderCast();

        System.out.println("开始");

    }

    public BroderCast()

    {

        ExecutorService exector = Executors.newFixedThreadPool(2);

        exector.execute(new SendScreenImg());

        exector.execute(new SendMouseMessage());

    }

}

发送截图代码:
import java.awt.Dimension;

import java.awt.Rectangle;

import java.awt.Robot;

import java.awt.Toolkit;

import java.awt.image.BufferedImage;

import java.io.DataOutputStream;

import java.io.IOException;

import java.net.ServerSocket;

import java.net.Socket;

import java.util.zip.ZipEntry;

import java.util.zip.ZipOutputStream;

import javax.imageio.ImageIO;

 

/*

 * 工具类:发送教师端截屏信息给学生端,没有鼠标信息,使用了8002号端口

 *      可以在发送的图片上面组件绘制鼠标的信息,从而实现在学生端界面上见到鼠标信息,暂未实现该功能

 *              

 */

public  class SendScreenImg extends Thread

{

    public int serverPort=8002;

    private ServerSocket serverSocket;

    private Robot robot;

    public  Dimension screen;

    public Rectangle rect ;

    private Socket socket; 

    public static void main(String args[])

    {

        new SendScreenImg().start();

    }

     

    public void changeServerPort(int serverPort)

    {

        if(this.serverPort == serverPort) return ;

        try{

            this.serverSocket.close();    //有必要先关闭当前端口

            this.serverPort = serverPort;

            serverSocket = new ServerSocket(this.serverPort);

            serverSocket.setSoTimeout(8000000);

        }catch(Exception e){}

         

    }

     

    //构造方法  开启套接字连接      机器人robot   获取屏幕大小

    public SendScreenImg()

    {

        try {

            serverSocket = new ServerSocket(getServerPort());

            serverSocket.setSoTimeout(864000000);

            robot = new Robot();

        } catch (Exception e) {

            e.printStackTrace();

        }

        screen = Toolkit.getDefaultToolkit().getScreenSize();  //获取主屏幕的大小

        rect = new Rectangle(screen);                          //构造相应大小的矩形

         

    }

    @Override

    public void run() 

    {

        //实时等待接收截屏消息

        while(true){

            try {

                socket = serverSocket.accept();

                ZipOutputStream zip = new ZipOutputStream(new DataOutputStream(socket.getOutputStream()));

                zip.setLevel(9);     //设置压缩级别

                try{

                    BufferedImage img = robot.createScreenCapture(rect);

                    zip.putNextEntry(new ZipEntry("test.jpg"));

                    ImageIO.write(img, "jpg", zip);

                    if(zip!=null)zip.close();

                    System.out.println("学生端口已经连接");

                } catch (IOException ioe) {

                    System.out.println("被控端:disconnect");

                }

            } catch (IOException ioe) {

             System.out.println("连接出错");

            } finally {

                if (socket != null) {

                    try {

                        socket.close();

                    } catch (IOException e) {

                    }

                }

            }

        }

    }

}

发送鼠标信息:
/*

 * 工具类:获取鼠标的信息并且发送给学生端

 */

public class SendMouseMessage extends Thread{

    private int OPERATE_PORT = 8001;

    private ServerSocket server;

    private Socket socket;

    private String operateStr;

    public static void main(String[] args)

    {

        new SendMouseMessage().start();

    }

    public SendMouseMessage(){

        try {

            server = new ServerSocket(OPERATE_PORT);

            //JOptionPane.showMessageDialog(null, "已经开始监听");

        } catch (IOException e1) {

            e1.printStackTrace();

        }       

    }

    //多线程  在无线的循环中监听客户端的

    public void run()

    {

        while(true){

            Point point = MouseInfo.getPointerInfo().getLocation();  //

            operateStr ="Movemouse,"+point.x+","+point.y;

            try {

                socket = server.accept();

                socket.setSoTimeout(1000000);

                DataOutputStream output =new DataOutputStream(socket.getOutputStream());

                output.write(operateStr.getBytes());

                output.flush();   //刷行输出流,并且使所有缓冲的输出字节写出

                output.close();   //关闭输出流且释放资源

     

                System.out.println("INFO:  "+operateStr);

            } catch (IOException e) {

                System.out.println("已经停止连接");

                break;   //断开连接的时候就停止无线循环

            }

        }

    }

}

客户端:

主程序:

import java.util.concurrent.ExecutorService;

import java.util.concurrent.Executors;

 

import com.Tool.OperateMouse;

import com.Tool.ReceiveImages;

 

public class ReceiveBroderCast {

    public ExecutorService exector;

    public static String IP="202.216.60.9";

     

    public static void main(String[] args)

    {

        new ReceiveBroderCast(IP);

    }

     

    public ReceiveBroderCast(String IP) {

        exector = Executors.newFixedThreadPool(2);

        exector.execute(new ReceiveImages(IP));

        exector.execute(new OperateMouse(IP));

    }

}

接收截图代码:
/*

 * ly  2014-11-20

 * 该类用于接收教师端的屏幕信息,不包括鼠标

 * 使用socket()

 */

public  class ReceiveImages extends  Thread{

    public BorderInit frame ;

    public Socket socket;

    public String IP;

     

    public static void main(String[] args){

        new ReceiveImages("202.216.60.7").start();

    }

    public ReceiveImages(String IP)

    {

        frame=new BorderInit();

        this.IP=IP;

         

    }

    public void run() {

        while(frame.getFlag()){

            System.out.println("已经连接"+(System.currentTimeMillis()/1000)%24%60+"秒");

            try {

                socket = new Socket(IP,8002);

                DataInputStream ImgInput = new DataInputStream(socket.getInputStream());

                ZipInputStream imgZip = new ZipInputStream(ImgInput);

                Image img = null;

                try{

                    imgZip.getNextEntry();   //到Zip文件流的开始处

                    img = ImageIO.read(imgZip); //按照字节读取Zip图片流里面的图片

                    frame.jlbImg.setIcon(new ImageIcon(img));

                    frame.validate();

                }catch (IOException e) {e.printStackTrace();}

                 

                try{

                    imgZip.close();

                } catch (IOException e) {

                    System.out.println("连接断开");

                }

                try {

                    TimeUnit.MILLISECONDS.sleep(50);// 接收图片间隔时间

                } catch (InterruptedException ie) {

                    ie.printStackTrace();

                }       

            } catch (IOException e) {

                e.printStackTrace();

            }finally{

                try {

                    socket.close();

                } catch (IOException e) {}  

            }       

        }   

    }

}

class BorderInit extends JFrame

{

    private static final long serialVersionUID = 1L;

    public JLabel jlbImg;

    private boolean flag;

    public boolean getFlag(){

        return this.flag;

    }

    public BorderInit()

    {

        this.flag=true;

        this.jlbImg = new JLabel();

        this.setTitle("远程监控--IP:"  + "--主题:" );

        this.setSize(400, 400);

        //this.setUndecorated(true);

        //this.setAlwaysOnTop(true);  //始终在最前面

        this.add(jlbImg);

        this.setLocationRelativeTo(null);

        this.setExtendedState(Frame.MAXIMIZED_BOTH);

        this.setDefaultCloseOperation(DISPOSE_ON_CLOSE);

        this.setVisible(true);

        this.validate();

     

        //窗口关闭事件

        this.addWindowListener(new WindowAdapter() {

            public void windowClosing(WindowEvent e) {

                flag=false;

                BorderInit.this.dispose();

                System.out.println("窗体关闭");

                System.gc();    //垃圾回收

            }

        });

    }

}

接收鼠标信息并控制鼠标移动:
import java.awt.AWTException;

import java.awt.Robot;

import java.io.BufferedInputStream;

import java.io.BufferedReader;

import java.io.DataInputStream;

import java.io.IOException;

import java.io.InputStream;

import java.net.Socket;

 

import javax.swing.JOptionPane;

 

/*

 * 学生端   控制鼠标和教师端一致

 * 该类  负责接收鼠标的信息  并且用robot.mouseMove()函数控制鼠标移动  

 */

public class OperateMouse extends Thread{

    public static void main(String[] args)

    {

        new OperateMouse("202.116.60.7").start();

    }

    private Socket socket;

    public String IP;

    private int OPERATE_PORT = 8001;

    private Robot robot;

     

    public OperateMouse(String IP)

    {

        this.IP = IP;

    }

    public void run() {

        while(true){

            try {

                socket = new Socket(IP,OPERATE_PORT);

                robot = new Robot();

                //获取鼠标移动的信息

                DataInputStream dataIn = new DataInputStream(socket.getInputStream());        

                String info="";

                int r;

                while((r=dataIn.read()) != -1){

                    info +=""+(char)r;   //把字节数组中所有元素都变为字符型

                }

                dataIn.close();

                System.out.println("数据流断开"+info);

                if(info!=null){

                        String s[] = info.trim().split(","); 

                        if("Movemouse".equals(s[0].trim()));

                        {

                            if (s.length == 3) {

                                int x = Integer.parseInt(s[1].trim());

                                int y = Integer.parseInt(s[2].trim());

                                System.out.println("输出鼠标的信息"+x+"  "+ y);

                                robot.mouseMove(x, y);

                            }

                        }

                    }

            } catch (IOException e) {

                System.out.println("已断开连接");

                break;

            } catch (AWTException e) {

                e.printStackTrace();

            }

        }

    }

}

希望本文所述对大家的Java程序设计有所帮助。