One way to do it would be to create an action such as "image". Then, in your Image action class, get the BLOB, convert it to stream of data, and send it to the output stream of the HTTPServletResponse object.
Then in your jsp, you can code <img scr="image.do?imageName=image1">
There's an example of this in the struts-examples.war that comes with the
Struts download. Check out the class: org.apache.struts.webapp.exercies.ImageAction
[ January 12, 2006: Message edited by: Merrill Higginson ]