JDK截图

import java.awt.Dimension;
import java.awt.Rectangle;
import java.awt.Robot;
import java.awt.Toolkit;
import java.awt.image.BufferedImage;
import java.io.*;

public class Capture{
  // 截图并存入文件系统
  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, "jpg", new File(fileName));
  } 
}

//用法:
  main方法中(或者你需要的地方):
  String path = "c:\test.jpg";
  try {
captureScreen(str);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}




http://blog.csdn.net/cping1982/archive/2010/03/06/5353049.aspx