在java中截取屏幕截图并将其保存在桌面上

Question

I write a code to capture screenshot in java in windows 7. This screenshot is saved in my workspace.

I want this screenshot to be saved directly to desktop.

import java.awt.Robot;
import java.awt.Toolkit;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;     
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import javax.imageio.ImageIO;

public class FullScreenCaptureExample {

    public static void main(String[] args) {
        try {
            Robot robot = new Robot();
            String format = "jpg";
            String fileName = "FullScreenshot." + format;

            Rectangle screenRect = new Rectangle(Toolkit.getDefaultToolkit().getScreenSize());
            BufferedImage screenFullImage = robot.createScreenCapture(screenRect);
            ImageIO.write(screenFullImage, format, new File(fileName));

            System.out.println("A full screenshot saved!");
        } catch (AWTException | IOException ex) {
            System.err.println(ex);
        }
    }
}

Answer 1

You are not using the right file name if you want it to be saved on your desktop. It should include the path to your desktop. Say for example your desktop could be accessed via: C:\\Users\\UserName\\Desktop , then you should replace the statment:

String fileName = "FullScreenshot." + format;

with:

String deskTopPath = "C:\\Users\\UserName\\Desktop";
String fileName = deskTopPath + "\\" + "FullScreenshot." + format;

Take note: If you want to take and save multiple shots then you should make the file name FullScreenshot unique for each shots. Devise a good strategy to make the FullScreenshot name to be unique (like appending the date time to that string).