Jsp include and jsp param

Question

Hi All,
I have the following:
<jsp:include page="anotherPage.jsp">
        <jsp:param name="testing" value="sdfasdfsd"/>
</jsp:include> And in anotherPage.jsp I have:
<%@ taglib uri="/WEB-INF/tld/commons-log.tld" prefix="log" %>
<log:dump scope="request"/>
<log:dump scope="session"/>
<log:dump scope="page"/>
<log:dump scope="application"/>
<h3>
Test: <%= request.getParameter("testing") %>
</h3>Not only does this output:
Test: null
but I don't see 'testing' anywhere in the dumps! What is going wrong?
Have I badly misunderstood parameter sending? :-/
Actually, my assumption was that the include code puts the "testing" variable
into the request.. 1) where does jsp:param put the data items it
passes through and 2) if the data item didn't previously exist as a
request parameter, does it ignore it?
Any assistance would be most appreciated!
Rob
:)

Answer 1

Depends on the server version you are using. If you are using a JSP 2.0 server like Tomcat 5, then you should be able to do that, as long as you set up the container correctly (to use servlet 2.4 and JSP 2.0 specs rather than 2.3 and 1.2...)
Is you are using a JSP 1.2 container (less then TC5) then you will not be able to use EL anyware except in JSTL tags. The fix is to use the JSTL tags to do the include:
<c:import url="thepage.jsp">
  <c:param name="param1" value="${attr}"/>
</c:import>