直接上代码，具体看注释：
package robot;import java.awt.AWTException;
import java.awt.Dimension;
import java.awt.Rectangle;
import java.awt.Robot;
import java.awt.Toolkit;
import java.awt.image.BufferedImage;
import java.io.FileNotFoundException;
import java.util.concurrent.TimeUnit;import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;public class TestRotbot {public static void main(String[] args) throws FileNotFoundException {
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
JFrame showImage = new JFrame("屏幕共享");
showImage.setBounds(0, 0, 300, 300);
JLabel imageLabel = new JLabel(); //用于接收屏幕
showImage.setVisible(true);
showImage.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
int height = (int)screenSize.getHeight();
int width = (int)screenSize.getWidth();
try {
Robot robot = new Robot();
imageLabel.setBounds(0, 0, showImage.getWidth(), showImage.getHeight());
Rectangle screenRect = new Rectangle(0, 0, width, height);
while(true){
BufferedImage imageW = robot.createScreenCapture(screenRect);
showImage.add(imageLabel);
imageLabel.setIcon(new ImageIcon(imageW)); //获取屏幕内容
TimeUnit.MILLISECONDS.sleep(50);imageW.flush();
}} catch (AWTException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}}}
本文代码只做原理演示，具体的屏幕分享仍需进一步的完善，需要客户端和服务器端共同完成。
