Now that you mention it, I think RichFaces and ICEfaces also have a way
to do that with a nice component. Much better approach than trying what
I put in my blog, which was really targeted at a different problem.
Short answer, then: get and use RichFaces, ICEfaces or PrimeFaces and
let them do the heavy lifting.
On 2/9/12 10:45 AM, Joel Weight wrote:
> Primefaces graphic image
> http://www.primefaces.org/showcase/ui/dynamicImage.jsf is supposed to
> be able to load the image from the database, but I can't guarantee
> because I haven't used it. Back when I was doing JSF (been a while
> now) I hijacked the h:graphicImage tag so that it would perform as
> usual, or load form the database depending on the library. I wrote a
> blog post about it:
> http://digitaljoel.nerd-herders.com/2010/09/12/jsf-graphicimage-from-database/
>
>
> If the primefaces component will work for you it's definitely easier
> than the way I did it. As for upload, I echo what Jason said.
>
> Joel
>
> On Thu, Feb 9, 2012 at 9:18 AM, Jason Lee <jason.d.lee_at_oracle.com
> <mailto:jason.d.lee_at_oracle.com>> wrote:
>
> On 2/9/12 9:43 AM, forums_at_java.net <mailto:forums_at_java.net> wrote:
>
> I want to extract pictures from the table and display them in
> a jsf page; I
> know how to go about database tables etc in general in Java
> EE, but I am not
> sure about images - is there a place I can read more about it?
> Or is it just
> really simple?
>
> There are probably several ways you can do it. The easiest might
> be a simple Servlet. You construct URLs that point to this
> Servlet, which reads the data from the database and returns it to
> the user, setting all the proper headers, etc. If you want a more
> JSF-ish way to do it, this old blog post of mine might help:
> http://blogs.steeplesoft.com/2010/05/putting-facelets-in-a-jar/
>
> That post notes that it doesn't directly address database access,
> but, hopefully, there's enough there to get you going if you
> choose that route. A Servlet is probably simpler. :)
>
> Another things is - how about uploading pictures, which is the
> other,
> important part of this?
>
> Currently, JSF doesn't have file upload support built in. JSF
> 2.2, which is due out sometime "soon" will fix that. I'm guessing
> you need it now, though. :) There are several blog entries around
> the web describing how to roll your own solution, but if you're
> not opposed to a third party JSF component library, both RichFaces
> and ICEfaces have great file upload components that should meet
> your needs.
>
> --
> Jason Lee
> Senior Member of Technical Staff
> GlassFish Team
>
> Oracle Corporation
> Phone +1 405-216-3193 <tel:%2B1%20405-216-3193>
> Blog http://blogs.steeplesoft.com
>
>
--
Jason Lee
Senior Member of Technical Staff
GlassFish Team
Oracle Corporation
Phone +1 405-216-3193
Blog http://blogs.steeplesoft.com