1 import java.awt.Dimension; 2 import java.awt.Rectangle; 3 import java.awt.Robot; 4 import java.awt.Toolkit; 5 import java.awt.image.BufferedImage; 6 import java.io.File; 7 8 import javax.imageio.ImageIO; 9 10 /******************************************************************* 11 * 该JavaBean可以直接在其他Java应用程序中调用，实现屏幕的"拍照" 12 * This JavaBean is used to snapshot the GUI in a 13 * Java application! You can embeded 14 * it in to your java application source code, and us 15 * it to snapshot the right GUI of the application 16 * @see javax.ImageIO 17 * @author liluqun (liluqun@263.net) 18 * @version 1.0 19 * 20 *****************************************************/ 21 22 public class GuiCamera 23 { 24 private String fileName; //文件的前缀 25 private String defaultName = "GuiCamera"; 26 static int serialNum=0; 27 private String imageFormat; //图像文件的格式 28 private String defaultImageFormat="png"; 29 Dimension d = Toolkit.getDefaultToolkit().getScreenSize(); 30 31 /**************************************************************** 32 * 默认的文件前缀为GuiCamera，文件格式为PNG格式 33 * The default construct will use the default 34 * Image file surname "GuiCamera", 35 * and default image format "png" 36 ****************************************************************/ 37 public GuiCamera() { 38 fileName = defaultName; 39 imageFormat=defaultImageFormat; 40 41 } 42 43 /**************************************************************** 44 * @param s the surname of the snapshot file 45 * @param format the format of the image file, 46 * it can be "jpg" or "png" 47 * 本构造支持JPG和PNG文件的存储 48 ****************************************************************/ 49 public GuiCamera(String s,String format) { 50 51 fileName = s; 52 imageFormat=format; 53 } 54 55 /**************************************************************** 56 * 对屏幕进行拍照 57 * snapShot the Gui once 58 ****************************************************************/ 59 public void snapShot() { 60 61 try { 62 //拷贝屏幕到一个BufferedImage对象screenshot 63 BufferedImage screenshot = (new Robot()).createScreenCapture(new 64 Rectangle(0, 0, (int) d.getWidth(), (int) d.getHeight())); 65 serialNum++; 66 //根据文件前缀变量和文件格式变量，自动生成文件名 67 String name=fileName+String.valueOf(serialNum)+"."+imageFormat; 68 File f = new File(name); 69 System.out.print("Save File "+name); 70 //将screenshot对象写入图像文件 71 ImageIO.write(screenshot, imageFormat, f); 72 System.out.print("..Finished! "); 73 } 74 catch (Exception ex) { 75 System.out.println(ex); 76 } 77 } 78 79 public static void main(String[] args) 80 { 81 GuiCamera cam= new GuiCamera("d:\Hello", "png");// 82 83 cam.snapShot(); 84 } 85 }
原文：http://bbs.chinaunix.net/thread-770968-1-4.html