I use the tag IMG to display images on my site - It however looks like I am limited in what I attempt to do because this tag can only access images that are located within the application directory.
- accessing application resources without embedding the application context in your URI, and
- accessing application resources that might require an authenticated user
If neither of these use cases apply, then don't use the Struts tags. =:0)
Sometimes, people do seem to get the idea that every tag on a page should be a Struts tag. But that is not how the tags are designed to be used, and no one on the Struts team would recommend such a practice.
-- Ted Husted, Struts in Action.