Passing JSP parameters from one jsp to another : code uses HIPPO

Question

I am trying to pass a parameter from one jsp file to another using

From Index.jsp

<jsp:include page="footer.jsp">
   <jsp:param name="main" value="true"/>
</jsp:include>

And then Accessing param main in footer.jsp using

  <h1>The value : ${param.main}</h1>
  <c:choose>
    <c:when test="${param.main=='true'}">
      something
    </c:when>

however, param.main still remains null in footer.jsp.

Our code uses HIPPO CMS. Is there a way I can send a parameter from one jsp to another in HIPPO CMS. I tried searching but i could not find anything relavant to HIPPO CMS.

what does this do if you add it to the footer.jsp - ${p.key} ${p.value} — antonyh, Dec 13 '12 at 23:01
Is this an example or is it your real code? I would try antonyn's suggestion since it should work. — Jeroen, Dec 14 '12 at 09:30

score 2 · Answer 1 · answered Dec 20 '12 at 15:57

We used taglibs for this. It worked.

Create a tag file footer.tag (This file will resemble footer.jsp)

Then in index.jsp include the tag file using

<customTag:footer main="true"/>

(Custom Tag denotes the folder in which your footer.tag is being kept)

This will include the footer tag in the index.jsp and parameters can be passed as mentioned above.

A sample of the footer tag :

<%@ tag language="java" pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/xml" prefix="x"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn"%>
<%@ taglib uri="http://www.hippoecm.org/jsp/hst/core" prefix='hst'%>

<%@ attribute name="main" required="false"%>

<p>The value of main is ${main}</p>

It is horrible workaround. There is no other way to pass a parameter? — kolobok, Jul 30 '14 at 09:27

score 0 · Answer 2 · answered Jul 30 '14 at 09:48

0

I managed to fix this issue using following code:

<c:set var="name" value="${value}" scope="request" />
<jsp:include page="page.jsp" />

answered Jul 30 '14 at 09:48

kolobok

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score 0 · Answer 3 · answered Oct 03 '16 at 08:08

Hippo wraps HttpServletRequest with it's own request and adds a prefix for attribute name to access attribute with same name in different components (or browser windows). But all of this can not stop you for using pure HttpServlet.setAttribute - just get RequestContext from HstRequest and then get HttpServletRequest:

HstRequest hstRequest = ...
hstRequest.getRequestContext().getServletRequest().setAttribute("attributeName", new Object());

Passing JSP parameters from one jsp to another : code uses HIPPO

3 Answers3