Display dynamic image from database or remote source with p:graphicImage and StreamedContent

Question

I\'m trying to display image bytes which is saved in database as a StreamedContent in the as follows:

Answer 1

The answer from BalusC is (as usual) the correct one.

But keep one thing (as already stated by him) in mind. The final request is done from the browser to get the URL from the constructed tag. This is not done in a 'jsf context'.

So if you try to e.g. access the phaseId (logging or whatever reason)

context.getCurrentPhaseId().getName()

This will result in a NullPointerException and the somehow misleading error message you will get is:

org.primefaces.application.resource.StreamedContentHandler () - Error in streaming dynamic resource. Error reading 'image' on type a.b.SomeBean

It took me quite some time to figure out what was the problem.