On Thu, 10 Feb 2005 23:09:51 -0500, Erik Weber <[EMAIL PROTECTED]> wrote:
> Sorry, I was using the html-el tag, not the html tag:
>
> <html-el:img src="${somePath}/images/foo.jpg"/>
>
> I think you should be able to do what you want without the el tags if
> you are using JSP 2.0, but to be honest, someone else needs to jump in
> and bail me out here on that. I think it's a configuration problem. (web
> app 2.3 v 2.4 or something?)
You are definitely on the right track.
If you are using a Servlet 2.4/JSP 2.0 container (such as Tomcat 5.x),
you can enable support for EL expressions globally in your pages (even
in template text -- it doesn't have to be in a custom tag attribute).
This requires telling the container that you are a Servlet 2.4 webapp,
by including the following as the root element:
<web-app xmlns="http://java.sun.com/xml/ns/j2ee";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd";
version="2.4">
instead of the DOCTYPE declaration used on previous versions. Doing
this makes the struts-el library totally superfluous -- EL expressions
work as expected on all the standard Struts tags.
This capability lets you do some cute things, even without a lot of
custom tags. Consider the following example (using JSTL tags) where
"customers" is an attribute that contains an array (or List) of
Customer beans.
<table>
<tr>
<th>Id</th>
<th>Name</th>
</tr>
<c:forEach items="${customers}" var="customer">
<tr>
<td>${customer.id}</td>
<td>${customer.name}</td>
</tr>
</c:forEach>
</table>
(Note that you can get the same sort of filtering that <bean:write>
does for you, to avoid cross site scripting attacks, by using things
like "<c:out value='${customer.id}'/>" instead of "${customer.id}" if
you need it.)
(If you want to do *input* into a table like this, consider using
JavaServer Faces (JSF) components like <h:dataTable> instead ... it
manages all the hard parts for you.)
>
> Erik
>
Craig
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