如何生成动态Rich：panelMenu？

Question

i have a problem to generate dynamic menu, i'm using JSF1.2. I tried the c:forEach with an arrayList to generate dynamic rich:panelMenu as BalusC advised in a related forum, but get Accessor never triggered in c:forEach. it ruined me a day. can anyone provide me a solution ?

 <c:forEach items="#{serviceListBean.services}" var="child">
              <rich:panelMenuItem mode="none">                  
                  <h:outputText value="#{child.serviceId}"></h:outputText>                                          
              </rich:panelMenuItem>
            </c:forEach>

what's wrong in this code? can anyone enlighten me?. For info, serviceListBean is request scoped bean.

Answer 1

Two possible causes:

1. JSTL is not declared as taglib in JSP or Facelets. To confirm this, rightclick page in browser and choose View Source . Do you see <c:forEach> tag unparsed among the generated HTML? If you're using JSP, declare it as follows:

    <%@taglib prefic="c" uri="http://java.sun.com/jsp/jstl/core" %> 

   Or if you're using Facelets, declare it as follows in root element:

    xmlns:c="http://java.sun.com/jsp/jstl/core" 

   On some servers like Tomcat, which doesn't ship with JSTL out the box, you would also need to install JSTL first, see also this info page .

2. This piece of code is in turn been placed inside a JSF repeating component, like <h:dataTable> with a var="serviceListBean" . This is also not going to work. You would need to replace the JSF repeating component by <c:forEach> as well.