JSTL and hashmap

[Alex Florentino]

Hi all,

I have HashMap with dynamic key, sample:

    <c:forEach items="${hours}" var="hour">
    <tr>    
    <th>${hour}</th>
    <c:forEach items="${labels}" var="label">
    <c:set var="hor" value="${label}${hour}"></c:set>
    <td>${myHashmap[${hor}]} ${hor}</td>
      </c:forEach>      
     </tr>
     </c:forEach>

but I get an error when I try run this jsp. I think that problem is:

${myHashmap[${hor}]}

when I get my hashmap value with my dynamic key.

resume: how I get my hashmap value when I create my key dynamic .

very thanks

[Sid Murrey]

This could be completely wrong, but a guess:

<td>${myHashmap.value[hor]} ${hor}</td>

[ July 10, 2008: Message edited by: Cedric Meury ]

[Alex Florentino]

it is not working, but

${myHashmap[hor]}

working

[Sid Murrey]

Nice! Good to know.

[Bear Bibeault]

The ${} surrounds the entire EL expression. It is not some sort of "fetch" operator.

[Alex Florentino]

Originally posted by Bear Bibeault:
The ${} surrounds the entire EL expression. It is not some sort of "fetch" operator.

I my sorry, but I not understand ? because ${myhash[myinternalvar]} works.

thanks.

[Bear Bibeault]

Because in that example, the ${} surrounds the entire El expressions as I stated.

[John Abrams]

This is about as straight forward as it gets:
<table>
<c:forEach items="${requestScope.mapToIterate}" var="entry">
<tr><td>${entry.key}</td><td>${entry.value}</td></tr>
</c:forEach>
</table>

[Bear Bibeault]

"gguer gguer", please check your private messages for an important administrative matter.