Yes, it is possible with Component-Base Thechnology like JSF :
<h:graphicImage value="#{beanName.property}" />
The image  comes as Blob from DB.

If you can use struts in your app just let me know, so I can tell you the exact way.

I'm not sure if I understood the problem you've encountered correctly, but hope it helps,
you can use img tag  (or if ur using struts, html:img) and point the url of a servlet (or action if using struts) to a servlet (or action), load  the image  in servlet (action) and write it in the ServletOutputStream. The only thing you have to consider is that you should set the output of the servlet to image.
If this is what you want to do, I can send you the code (pure servlet or struts). Just let me know...

I can use struts in my app. Can you help me?

Although the mechanism is exactly the same in Servlets but I rather explain this how-to in Struts because of its html:img tag.

OK Pal
Here's the solution:
In order to download a photo from a DB and display  it right on your web page:

A) you need an Action, say: DownloadAction
B) your DownloadAction need no corresponding ActionForm
C) in the execute() method of DownloadAction:
1) get the OutputStream:
out=response.getOutputStream()
2) set its content type to "image/jpeg":
response.setContentType("image/jpeg")
3) get your object  from DB (the object which this photo as one of its fields)
4) get the photo into a new blob  object
5) convert this Blob to a byte array
byte[] bytes  = null
bytes = blob.getBytes(1, (int) (blob.getLength()))
6) write it to the OutputStream
out.write(bytes)

D) in your web page  use html:img tag  as follows:
<html:img src="downloadAction.do">

how about this image program, will it be a solution for loading image without saving.
www.rasteredge.com/.../