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【Java】 Java截图
作者:DDTer / 发布于2011/6/7/ 727
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;</div>
import javax.imageio.ImageIO;</div>
<div>/*******************************************************************************
* 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
* 
* 
******************************************************************************/</div>
<div>class GuiCamera
{
 private String fileName; // 文件的前缀</div>
<div> private String defaultName = "GuiCamera";</div>
<div> static int serialNum = 0;</div>
<div> private String imageFormat; // 图像文件的格式</div>
<div> private String defaultImageFormat = "png";</div>
<div> Dimension d = Toolkit.getDefaultToolkit().getScreenSize();</div>
<div> /***********************************************************************
 * 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;
 }
<div> /***********************************************************************
 * @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;
 }
<div> /***********************************************************************
 * 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! ");
 } catch (Exception ex)
 {
 System.out.println(ex);
 }
 }
<div> public static void main(String[] args)
 {
 GuiCamera cam = new GuiCamera("Test", "png");
 cam.snapShot();
 }
}
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