Java实现电脑屏幕截图

public class CaptureScreen {
public static void captureScreen(String fileName, String folder) throws Exception {
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
Rectangle screenRectangle = new Rectangle(screenSize);
Robot robot = new Robot();
BufferedImage image = robot.createScreenCapture(screenRectangle);
// 截图保存的路径
File screenFile = new File(fileName);
// 如果路径不存在,则创建
if (!screenFile.getParentFile().exists()) {
screenFile.getParentFile().mkdirs();
}
//判断文件是否存在，不存在就创建文件
if (!screenFile.exists() && !screenFile.isDirectory()) {
screenFile.mkdir();
}
File f = new File(screenFile, folder);
ImageIO.write(image, “png”, f);
//自动打开
/*if (Desktop.isDesktopSupported()
&& Desktop.getDesktop().isSupported(Desktop.Action.OPEN))
Desktop.getDesktop().open(f);*/
}
public static void main(String[] args) {
Date dt = new Date();
SimpleDateFormat sdf = new SimpleDateFormat(“yyyyMMdd”);
SimpleDateFormat sdf1 = new SimpleDateFormat(“yyyyMMddHHmmss”);
String data = sdf.format(dt);
String rd = sdf1.format(dt);
try {
//每隔3秒截一张图，共10张
for (int i = 0; i <= 10; i++) {
System.out.println(“–Now:”+ LocalDateTime.now().toString());
captureScreen(“D:\\image\\” + data, sdf1.format(new Date()) + “.png”);
Thread.sleep(3000);
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}