Not beeing in a real JSP (your servlet doesn't extend any JspServlet)
may cause some troubles to your servlet container.
To evaluate EL expression, you should consider using Jelly and Jexl
language from jakarta-commons. I did it with success.
Nico.
f. a écrit :
Hi,
I am currently developping custom tags library for my company.
We use ExpressionEvaluatorManager in our custom tags. That works
really fine.
But one of our action class will be called from cells in a table of
data (Html DataTable).
The Web Developper should be able to specify what to put in the
session under a given name when this
kind of link is clicked. And the way to do that is an expression in
Expression Language (JSTL).
So my Struts Action code should be able to evaluate the (request
Parameter) expression
in the Action execute() method to be able to put the right object in
session before next forward.
I got the Page context with:
PageContext pc =
javax.servlet.jsp.JspFactory.getDefaultFactory().getPageContext(
this.getServlet(),request, response, null, true, 4096 ,
false );
I evaluated the expression
evaluatedDetailRef =
ExpressionEvaluatorManager.evaluate(null, detailRef, Object.class, pc);
I released the Page Context
javax.servlet.jsp.JspFactory.getDefaultFactory().releasePageContext(pc);
And now my servlet container (Jetty) seems crazy and instead of
processing JSP file and sending result to browser,
it sends JSP source directly to browser
Does it make sense for you ? Is it crazy to use EL in Action execute(
) method ?? (Was an idea of my Team leader )
I am stuck. Thanks for your help.
Regards,
Thanks
Denis.
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