On Tue, 30 Jul 2002, David Goodenough wrote:
> Using JSTL can I set a param.? value? I can access the values using:-
>
> <c:out value="${param.Name}" />
>
> but if I want to update the value using:-
>
> <c:set var="param.Name" value="new Value" />
>
> subsequent uses of "${param.Name}" seem to have the old value not the
> new one.
>
> Do I need to specify a scope, or should I use the param[ 'Name'] notation
> or what?
>
> Thanks in advance
Per the Servlet specification, you cannot change parameter values. There
is no ServletRequest.setParameter() call; the values are intentionally
immutable. If you need mutable values, it's probably best to use regular
scoped attributes (which you can seed with values from parameters).
--
Shawn Bayern
"JSTL in Action" http://www.jstlbook.com
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