Try putting this somewhere on your page, outside of your displaytag and then
"View Source" to see what the value actually is:
<!-- pic = ${pic} -->
If you're correct you should see something like:
<!-- pic = menjeans.png -->
But I suspect you won't. For that to work, something has had to initialize
the pic attribute in one of the page, request, session, or application
scopes, which I suspect isn't happening.
Another thing, ${images/pic} is not the same thing as images/${pic}. The
first is looking for an attribute in the above scopes named "images/pic".
The second is going to add the value of the "pic" attribute (from our
comment above) to the static string images/ so in our example, you should
end up with "images/menjeans.png".
But as was said before, this is basic JSP knowledge, not DisplayTag
specific. Maybe someone here can point you at a good beginners JSP list.
(*Chris*)
2009/10/9 Eve Pokua <gorgeou...@msn.com>
> Hi,
>
> ${pic}
>
> is a DB table attribute which contains the value or string -
>
> menjeans.png
>
> basically a picture string.
>
> cod
> <display:column><img src="${images/menjeans.png}"
> alt="Picture"></img></display:column>
> <display:column><img src="${images/balpic}"
> alt="Picture"></img></display:column>
> <display:column><img src="images/menjeans.png"
> alt="Picture"></img></display:column>
>
> HTML generation -
>
> <td><img src="0" alt="Picture"></img></td>
> <td><img src="0" alt="Picture"></img></td>
> <td><img src="images/menjeans.png"
> alt="Picture"></img></td></tr></tbody></table>
>
> Thanking you.
>
> eve
> ------------------------------
> Date: Fri, 9 Oct 2009 18:54:52 -0500
> From: emmecin...@gmail.com
> To: displaytag-user@lists.sourceforge.net
> Subject: Re: [displaytag-user] displaying images with displaytag issues
>
> What is "pic"? Where's it b being set? Is it a column value? When you
> say, "it doesn't work", how do you know that? What does the generated HTML
> look like (which is to ask, what is the value of ${pic} when JSP expands
> that expression)?
>
> What you need to be doing is arranging for the <img> tag to reference a URL
> that includes something that your server can use to load the image file.
>
> I seriously doubt there's a displaytag issue here.
>
>
> 2009/10/9 Eve Pokua <gorgeou...@msn.com>
>
> Miguel
>
> <display:column><img src="images/menjeans.png"
> alt="Picture"></img></display:column>
>
> Yes it works.
>
> but how do I display an attribute-
>
> <display:column><img src="images/${pic}"
> alt="Picture"></img></display:column>
>
> Thank you for your quick reply.
>
> eve
>
> ------------------------------
> From: mig...@almeida.at
> To: displaytag-user@lists.sourceforge.net
> Date: Sat, 10 Oct 2009 00:02:33 +0100
> Subject: Re: [displaytag-user] displaying images with displaytag issues
>
> Just on a sanity check, does this work:
>
>
> <display:column><img src="images/menjeans.png"
> alt="Picture"></img></display:column>
>
> ?
>
> On Fri, 2009-10-09 at 23:54 +0100, Eve Pokua wrote:
>
> hello everyone,
>
> I have open up this thread again because I've come to a conclusion it's a
> displaytag
> problem.
>
> I've the string menjeans.png in a DB. This works for me without
> displaytag.
>
> <%
> String pic2="menjeans.png";%>
> <img src="images/<%= pic2 %>">
>
> With displaytag -
>
> <display:column><img src="images/<=bpic>"
> alt="Picture"></img></display:column>
> <display:column><img src="images/=bpic"
> alt="Picture"/></img></display:column>
> <display:column><img src="${images/bpic}"
> alt="Picture"></img></display:column>
> <display:column><img src="images/${bpic}"
> alt="Picture"></img></display:column>
>
> None of the above works. And this -
>
> <display:column><img src="images/<%=balpic%>"
> alt="Picture"/></img></display:column>
>
> Can't even ran my application with that.
>
> So what is your suggestions?
>
> I don't want to have to stop using displaytag as the picture display is an
> important part of the application.
>
> Thanking you.
>
> regards
>
> eve
>
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