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LinearGradient
LinearGradient
Level 6
October 16, 2015
Solved

Can "jsp:include" be used in CQ 5?

  • October 16, 2015
  • 3 replies
  • 2818 views

In a template file, I have a chunk code of like this:

<jsp:include page="/apps/acme/components/menu/menu-items.jsp"> <jsp:param name="menuItem" value="${rootItem}" /> </jsp:include>

menu-items.jsp recursively includes itself like:

<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <%@taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %> <li> ${menuItem.title} <c:if test="${fn:length(menuItem.children) > 0}"> <ul> <c:forEach var="child" items="${menuItem.children}"> <jsp:include page="/apps/acme/components/menu/menu-items.jsp"> <jsp:param name="menuItem" value="${child}"/> </jsp:include> </c:forEach> </ul> </c:if> </li>

However CQ encounters an error rendering this:

Caused by: org.apache.sling.api.resource.ResourceNotFoundException: No resource found

I am using jsp:include rather than cq:include because I want to pass a parameter to the script, and as the script is invoked recursively each time with a different value for its parameter I prefer not to use request attributes and manually manage the parameter stack.

However this doesn't seem to work. Is it allowed to use jsp:include in CQ5? Am I missing something here?

Thanks.

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Best answer by JustinEd3

Yes, you can use jsp:include in CQ5/AEM, but it doesn't do what you think it does. jsp:include, per specification, goes all the way back to the RequestDispatcher. So you can include smoething like /content/geometrixx/en.html (and even add parameters), but you can't directly include a JSP.

3 replies

J
Adobe Employee
JustinEd3Adobe EmployeeAccepted solution
Adobe Employee
October 16, 2015

Yes, you can use jsp:include in CQ5/AEM, but it doesn't do what you think it does. jsp:include, per specification, goes all the way back to the RequestDispatcher. So you can include smoething like /content/geometrixx/en.html (and even add parameters), but you can't directly include a JSP.

LinearGradient
LinearGradientAuthor
Level 6
October 16, 2015

Thanks for the reply Justin.

So other than the cq:include/request attributes combo is there any other way to include a JSP page and pass parameters to it?

J
Adobe Employee
JustinEd3Adobe Employee
Adobe Employee
October 16, 2015

LinearGradient wrote...

So other than the cq:include/request attributes combo is there any other way to include a JSP page and pass parameters to it?

 

See, that's the thing. In CQ/AEM, JSPs aren't "pages" (yes I know that the P in JSP is "Pages"), they are really scripts which need a resource to execute against.

What you can do, although I don't know if this meets your needs, is to create a resource (could be a synthetic resource provided by a ResourceProvider or a real JCR Node) which has the appropriate sling:resourceType and then use jsp:include.

However, I think your problem (at least as I understand it), could be handled in a more idiomatic way simply by using resource inclusion.

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