Java page screenshot based on URL, thumbnail

Source Address: http://blog.csdn.net/cping1982/article/details/5353049

public class Shotspic extends JPanel {private static final long serialversionuid = 1L;

Row delimiter final static public String LS = System.getproperty ("Line.separator", "\ n");

File delimiter final static public String FS = System.getproperty ("File.separator", "\ \");

The final static StringBuffer jsdimension of the size of the full screen after the Web page is obtained in JavaScript script; static {jsdimension = new StringBuffer (); Jsdimension.append ("var width = 0;").
Append (LS); Jsdimension.append ("var height = 0;").
Append (LS);
Jsdimension.append ("if (document.documentelement) {"). Append (LS); Jsdimension.append ("width = Math.max (width, document.documentElement.scrollWidth);").
Append (LS); Jsdimension.append ("height = Math.max (height, document.documentElement.scrollHeight);").
Append (LS);
Jsdimension.append ("}"). Append (LS);
Jsdimension.append ("if (self.innerwidth) {"). Append (LS); Jsdimension.append ("width = Math.max (width, self.innerwidth);").
Append (LS); Jsdimension.append ("height = Math.max (height, self.innerheight);").
Append (LS); Jsdimension.appEnd ("}"). Append (LS);
Jsdimension.append ("if (document.body.scrollWidth) {"). Append (LS); Jsdimension.append ("width = Math.max (width, document.body.scrollWidth);").
Append (LS); Jsdimension.append ("height = Math.max (height, document.body.scrollHeight);").
Append (LS);
Jsdimension.append ("}"). Append (LS);
Jsdimension.append ("Return width + ': ' + height;");
Public shotspic (String URL) {Super (New BorderLayout ());
JPanel Webbrowserpanel = new JPanel (new BorderLayout ());
Final String fileName = "Screenshots.jpg";
Final Jwebbrowser webBrowser = new Jwebbrowser (null);
Webbrowser.setbarsvisible (FALSE);
Webbrowser.navigate (URL);
Webbrowserpanel.add (WebBrowser, Borderlayout.center);


Add (Webbrowserpanel, borderlayout.center);


JPanel panel = new JPanel (new FlowLayout (Flowlayout.center, 4, 4)); Webbrowser.addwebbrowserlistener (New Webbrowseradapter () {//Listener load Progress public void loadingprogresschanged ( Webbrowserevent e) {//when loading completed if (E.getwebbrowser (). getloadingprogress () = = 100) {//dynamic execution JS mostFinally returns the actual width and height of the Web page String result = (string) webbrowser.executejavascriptwithresult (jsdimension.tostring ());

SYSTEM.OUT.PRINTLN (result); int index = result = null?
-1:result.indexof (":");
Nativecomponent nativecomponent = Webbrowser.getnativecomponent ();
Dimension originalsize = Nativecomponent.getsize (); Dimension imagesize = new Dimension (integer.parseint (result.substring (0, index)), Integer.parseint (

Index + 1));
ImageSize.Width = Math.max (originalsize.width,imagesize.width);

Imagesize.height = Math.max (originalsize.height,imagesize.height);
System.out.println (ImageSize.Width);


System.out.println (Imagesize.height);
Nativecomponent.setsize (ImageSize);
BufferedImage image = New BufferedImage (imagesize.width,imagesize.height, BUFFEREDIMAGE.TYPE_INT_RGB);

Nativecomponent.paintcomponent (image);
Nativecomponent.setsize (ImageSize); When the page exceeds the target large hours/*if (ImageSize.Width > maxwidth| | imagesize.height > MaxHeight) {//screenshot part graphic image = Image.getsubimage (0, 0, Maxwidth, maxheight);
}*//*//This section is using the thumbnail int width = image.getwidth (), height = image. GetHeight ();
AffineTransform tx = new AffineTransform ();
Tx.scale (Double) Maxwidth/width, (double) maxheight/height);
Affinetransformop op = new Affinetransformop (TX, Affinetransformop.type_nearest_neighbor);
Shrink image = Op.filter (image, NULL);
*/try {//Output image imageio.write (image, "JPG", New File ("e:\\" +filename)), catch (IOException ex) {ex.printstacktrace ();
}//Exit operation System.exit (0);
}
}
}


);


Add (Panel, Borderlayout.south);
public static void Main (string[] args) {nativeinterface.open ();

Swingutilities.invokelater (New Runnable () {public void run () {JFrame frame = new JFrame ("Save a screenshot of the specified page with DJ component");
Frame.getcontentpane (). Add (New Shotspic ("www.qq.com"), Borderlayout.center);
Frame.setsize (1280, 768);
Initialize only, but do not show frame.invalidate ();
Frame.pack ();
Frame.setvisible (FALSE);
}
});
Nativeinterface.runeventpump (); }

}

Program needs three packages:, download the address please refer to the original address!

Note: If the speed is not very good, will have a certain impact on the screenshot.