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convert Bytes[] to StreamedContent fro download jsf2.0 primefaces3.3.1

 
Greenhorn
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hello
I use primefaces and I want to download a file with different formats(pdf, jpg, png, ) from database but I don't succed to realise this I have seen a lot of topic like this but their methods don't work for me here is the html :


and here is the java :

always, image.getContentType() return null and bytes.length not null

do you have any idea

thank you
 
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JSF is designed to work with HTML, not PDF, MS-Word/Excel files or other non-HTML data.

Instead of trying to force JSF to output stuff it wasn't intended to output, you'll find it's cleaner to use a JSF h:outputLink element to reference a servlet URL. Let the servlet handle outputting the special-format data.
 
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