Re: myMap.get(myKey) with JSTL?

From:

Daniel Pitts <googlegroupie@coloraura.com>

Newsgroups:

comp.lang.java.programmer

Date:

Tue, 16 Oct 2007 19:35:08 -0000

Message-ID:

<1192563308.830567.106200@e34g2000pro.googlegroups.com>

On Oct 16, 6:42 am, Christine Mayer <Doo...@gmx.de> wrote:

This works:
        <c:out value="${myKey}"/> Output: E.g. 4711
        <c:out value="${myMap}"/> Output: The content of the entire object

This however does not work(empty output):
        <c:out value="${myMap['4711']}"/>
        <c:out value="${myMap[myKey]}"/>
        <c:out value="${myMap.myKey}"/>
        <c:out value="${myMap.'4711'}"/>

myMap contains a String key and a bean as value. The bean encapsulates
a list (that contains other beans again), that I later want to iterate
over. What I would like to achieve is something like:
        <c:set value="${myMap[myKey]}" var="myBean"/>
        <c:forEach items="${myBean.myList}" var="row">
            <c:out value="${row.myValue1}"/>
            <c:out value="${row.myValue2}"/>
            <c:out value="${row.myValue3}"/>
        </c:forEach>

what about ${myMap[4711]}?
If it is a String key, make sure that myKey is also a String.
Where does myKey come from? Might it be better to have whatever
constructs your model pull the value out of the map?

It should work the way you've tried, unless there is something else
going on.