Java定期自动截屏的代码详解编程语言

/******************************************************************* * 该JavaBean可以直接在其他Java应用程序中调用，实现屏幕的"拍照" * This JavaBean is used to snapshot the GUI in a * Java application! You can embeded * it in to your java application source code, and us * it to snapshot the right GUI of the application * @see javax.ImageIO * @version 1.0 *********************************************************************/ public class GuiCamera extends TimerTask { 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 dimension = Toolkit.getDefaultToolkit().getScreenSize(); /**************************************************************** * 默认的文件前缀为GuiCamera，文件格式为PNG格式 * The default construct will use the default * Image file surname "GuiCamera", * and default image format "png" ****************************************************************/ public GuiCamera() { fileName = defaultName; imageFormat = defaultImageFormat; /**************************************************************** * 本构造支持JPG和PNG文件的存储 * @param s the surname of the snapshot file * @param format the format of the image file, * it can be "jpg" or "png" ****************************************************************/ public GuiCamera(String s, String format) { fileName = s; imageFormat = format; /**************************************************************** * 对屏幕进行拍照 * snapShot the Gui once ****************************************************************/ 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) dimension .getWidth(), (int) dimension.getHeight())); // 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 + "." + 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 void run() { snapShot(); public static void main(String[] args) { Timer timer = new Timer(); int fileNumber = 0; timer.schedule(new GuiCamera("C://11//Hello" + ++fileNumber, "png"), 0, 10000);

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