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 javax.imageio.ImageIO;

public class GuiCamera

{

private String fileName; //文件的前缀

private String defaultName = "GuiCamera";

static int serialNum=0;

private String imageFormat; //图像文件的格式

private String defaultImageFormat="png";

Dimension d = Toolkit.getDefaultToolkit().getScreenSize();

public GuiCamera() {

fileName = defaultName;

imageFormat=defaultImageFormat;

}

public GuiCamera(String s,String format) {

fileName = s;

imageFormat=format;

}

public void snapShot() {

try {

//拷贝屏幕到一个BufferedImage对象screenshot

BufferedImage screenshot = (new Robot()).createScreenCapture(new

Rectangle(0, 0, (int) d.getWidth(), (int) d.getHeight()));

serialNum ;

//根据文件前缀变量和文件格式变量,自动生成文件名

String name=fileName String.valueOf(serialNum) "." imageFormat;

File f = new File(name);

System.out.print("Save File " name);

//将screenshot对象写入图像文件

ImageIO.write(screenshot, imageFormat, f);

System.out.print("..Finished!\n");

}

catch (Exception ex) {

System.out.println(ex);

}

}

public static void main(String[] args){

GuiCamera cam= new GuiCamera("d:\\test", "png");//

cam.snapShot();

}

}