How to show image from database

[andrea casini]

Hello to everyone.

I have succesfully upload an image to a database. Now comes the hardest part: display this image..
I load in the session a bean named "test" with attribute "image" (type byte[]) in wich the image is savad. Now I can't figure it out on how to display this image into the jsp.

I'd like to do something like this:

<html:image name="test" property="image"/>  

But obviously it does'nt work..:P

Anyone can help?

Thanks

[David Newton]

Search the web for "image servlet". You can do the same thing with an action if you want, just return null instead of an action forward.

[andrea casini]

David Newton wrote:Search the web for "image servlet". You can do the same thing with an action if you want, just return null instead of an action forward.

LOL.. I found also my topic..:D
Ok.. So I create this action:

    public ActionForward execute(ActionMapping mapping, ActionForm form,
            HttpServletRequest request, HttpServletResponse response)
            throws Exception {
        TheaterManager manager = new TheaterManager();
        Test test = (Test) manager.load(Test.class, (long) 3);

        byte[] immagine = test.getImmagine();
        response.setContentType("image/jpeg");
        response.setContentLength(immagine.length);
        response.getOutputStream().write(immagine);
        return mapping.findForward(SUCCESS);
    }
}
 

And in the jsp I put this:

<html:link action="/viewImage">View Image</html:link>    

It work. But I want to display this image without typing on a link and I'd like to render the image (minimize it to a specific size).
I tried returning null and use <html:image src="/viewImage.do"/> but nothing. Why??