package com.xiangwen.test;

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("E:/screen/test", "png");//
 
   cam.snapShot();
 
}
 
}