截屏的代码

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;

/*******************************************************************  * 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  * @author liluqun ([email]liluqun@263.net[/email])  * @version 1.0  *  *****************************************************/

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();

    /****************************************************************      * 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;          }

    /****************************************************************      * @param s the surname of the snapshot file      * @param format the format of the  image file,       * it can be "jpg" or "png"      * 本构造支持JPG和PNG文件的存储      ****************************************************************/     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) 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://Hello", "png");//

        cam.snapShot();     } }