Show image as byte[] from database as graphic image in JSF page -

i have image content byte[] database.

private byte[] image; 

how can show byte array real graphic image in jsf page?

this not directly possible <h:graphicimage>. can point url, not byte[] nor inputstream. basically, need make sure bytes directly available http response on given url, can use in <h:graphicimage> (or plain html <img>).

provided you're identifying image id so:

<h:graphicimage value="/image/#{somebean.imageid}" /> 

here's kickoff example of such servlet:

@webservlet("/image/*") public class imageservlet extends httpservlet {      @ejb     private imageservice service;      @override     protected void doget(httpservletrequest request, httpservletresponse response) throws servletexception, ioexception {         long id = long.valueof(request.getpathinfo().substring(1));         image image = service.find(id);         response.setcontenttype(getservletcontext().getmimetype(image.getname()));         response.setcontentlength(image.getbytes().length);         response.getoutputstream().write(image.getbytes());     }  } 

a more advanced abstract template static resource servlet, supporting http caching, can found in this answer, along concrete example serving database.

if happen use jsf utility library omnifaces on jsf 2.2 + cdi environment, can instead use <o:graphicimage> can used more intuitively.

<o:graphicimage value="#{imagebean.getbytes(somebean.imageid)}" /> 

@named @applicationscoped public class imagebean {      @ejb     private imageservice service;      public byte[] getbytes(long imageid) {         return service.getimagebytes(imageid);     }  }