JAVA截屏生成图片文件

import java.awt.AWTException;import java.awt.Desktop;import java.awt.Dimension;import java.awt.Rectangle;import java.awt.Robot;import java.awt.Toolkit;import java.awt.image.BufferedImage;import java.io.File;import java.io.FileOutputStream;import java.io.IOException;import java.io.OutputStream;import java.text.SimpleDateFormat;import java.util.Date;import javax.swing.filechooser.FileSystemView;import com.sun.image.codec.jpeg.JPEGCodec;import com.sun.image.codec.jpeg.JPEGEncodeParam;import com.sun.image.codec.jpeg.JPEGImageEncoder;public class Snapshot {private static Toolkit toolkit;private static Robot robot;private static BufferedImage bufferedImage = null;public static void shot() throws AWTException, IOException {toolkit = Toolkit.getDefaultToolkit();robot = new Robot();Dimension screenDimension = toolkit.getScreenSize();bufferedImage = robot.createScreenCapture(new Rectangle(screenDimension));String path = String.valueOf(FileSystemView.getFileSystemView().getHomeDirectory());//System.out.println(path);SimpleDateFormat sdf = new SimpleDateFormat("yyyymmddHHmmss");          String name = sdf.format(new Date());  name = name+".jpg";File file = new File(path +"\\"+ name);OutputStream output = new FileOutputStream(file);bufferedImage = bufferedImage.getSubimage(0, 0, screenDimension.width,screenDimension.height);JPEGEncodeParam param = JPEGCodec.getDefaultJPEGEncodeParam(bufferedImage);param.setQuality(0.7F, false);JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(output, param);encoder.encode(bufferedImage);encoder.getOutputStream().close();Desktop.getDesktop().open(new File(path));Runtime.getRuntime().exec("cmd /c " + path + name);}public static void main(String[] args) throws AWTException, IOException {shot();}}