java通过控制鼠标实现屏幕广播

在java实现屏幕共享的小程序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：

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：

/*
 * 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();
			}
		}
	}
}

本博客出自博客园兰幽