Generate Website(HTML) thumbnails on the fly

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aussie - 27 Mar 2007 14:00 GMT

Our team needs to have a on the fly website thumbnail. I have found
few scripts for php and .net but nothing for java. Preferably I would
like to set up a servlet that can take url as a parameter and return a
thumbnail image of that website. The only lead I have found on the web
was to use JEditorPane(URL) and then invoking the paint method to a
BufferedImage. Any Java GURUs out there who have an idea or an example
on how to do this?

Thanks in advance.

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aussie - 27 Mar 2007 14:27 GMT

> Our team needs to have a on the fly website thumbnail. I have found
> few scripts for php and .net but nothing forjava. Preferably I would
[quoted text clipped - 5 lines]
>
> Thanks in advance.

/**
    * @param args
    */
    public static void main(String[] args) {
        String url = "http://www.google.com";
        try
        {
//swing stuff
            JFrame someWindow = new JFrame();
        JEditorPane htmlPane = new JEditorPane(url);

        someWindow.setBounds(30, 30, 750, 750);
        htmlPane.setEditable(false);
        someWindow.add(new JScrollPane(htmlPane));
        someWindow.setVisible(true);

        BufferedImage pageImage = new BufferedImage ( 500, 500,
BufferedImage.TYPE_INT_RGB );
        Graphics2D pageGraphics = pageImage.createGraphics();
        htmlPane.paint ( pageGraphics );
        ImageIO.write(pageImage, "jpg", new FileOutputStream("C:\
\Documents and Settings\\lakulish.patel\\Desktop\\test.jpg"));
        }
        catch(IOException ioe)
        {
        System.err.println("Error displaying " + url);
        }
    }

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aussie - 27 Mar 2007 14:29 GMT

> Our team needs to have a on the fly website thumbnail. I have found
> few scripts for php and .net but nothing forjava. Preferably I would
[quoted text clipped - 5 lines]
>
> Thanks in advance.

Here is the code used with JeditorPanel
/**
    * @param args
    */
    public static void main(String[] args) {
        String url = "http://www.google.com";
        try
        {
//swing stuff
            JFrame someWindow = new JFrame();
        JEditorPane htmlPane = new JEditorPane(url);

        someWindow.setBounds(30, 30, 750, 750);
        htmlPane.setEditable(false);
        someWindow.add(new JScrollPane(htmlPane));
        someWindow.setVisible(true);

        BufferedImage pageImage = new BufferedImage ( 500, 500,
BufferedImage.TYPE_INT_RGB );
        Graphics2D pageGraphics = pageImage.createGraphics();
        htmlPane.paint ( pageGraphics );
        ImageIO.write(pageImage, "jpg", new FileOutputStream("C:\
\Documents and Settings\\d\\Desktop\\test.jpg"));
        }
        catch(IOException ioe)
        {
        System.err.println("Error displaying " + url);
        }
    }

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aussie - 27 Mar 2007 14:36 GMT

Here is the code used with JeditorPane but the image doesnt render
with the HTML page, it is just plain white. For the servlet I would
write to responses outputstream Instead of using the fileoutputstream.
/**
    * @param args
    */
    public static void main(String[] args) {
        String url = "http://www.google.com";
        try
        {
//swing stuff
            JFrame someWindow = new JFrame();
        JEditorPane htmlPane = new JEditorPane(url);

        someWindow.setBounds(30, 30, 750, 750);
        htmlPane.setEditable(false);
        someWindow.add(new JScrollPane(htmlPane));
        someWindow.setVisible(true);

        BufferedImage pageImage = new BufferedImage ( 500, 500,
BufferedImage.TYPE_INT_RGB );
        Graphics2D pageGraphics = pageImage.createGraphics();
        htmlPane.paint ( pageGraphics );
        ImageIO.write(pageImage, "jpg", new FileOutputStream("C:\
\Documents and Settings\\d\\Desktop\\test.jpg"));
        }
        catch(IOException ioe)
        {
        System.err.println("Error displaying " + url);
        }
    }

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Generate Website(HTML) thumbnails on the fly

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