单jsp 截屏, 直接 .

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;
*/

// ntTool.ntSysOut("147:");
// captureScreen("s:\\a.png"); // 耗时 400 ms
// ntTool.ntSysOut("148:");
public static void captureScreen(String fileName)
 throws Exception
{
 Dimension screenSize= Toolkit.getDefaultToolkit().getScreenSize();
 Rectangle screenRectangle= new Rectangle(screenSize);
 Robot robot= new Robot();
 BufferedImage image= robot.createScreenCapture(screenRectangle);
 ImageIO.write(image, "png", new File(fileName));
} 
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%>
<%
 out.clearBuffer(); // 清除前面的空行, 清空:
 response.setContentType("image/png");

 // 截屏
 Dimension screenSize= Toolkit.getDefaultToolkit().getScreenSize();
 Rectangle screenRectangle= new Rectangle(screenSize);
 Robot robot= new Robot();
 BufferedImage image= robot.createScreenCapture(screenRectangle);
 // ImageIO.write(image, "png", new File(fileName));
 ImageIO.write(image, "png", response.getOutputStream()); // 图像输出到页面
 //

 out.flush();
 if( 1==1 )
  return;