Calling values by their key in a vector of hashtables...

[John Engilis <jo...@wblgx.com>]

I would like to iterate over a vector of hash tables and then pull the
values from the hashtable by the key...  Will JSTL allow me to do this??

I've read through some JSTL books and I can see that one is able to iterate
over a vector with a forEach and then over a hashtable in the same fashion
displaying the keys and their associated value (in no specific order that
they were entered), but I'd like to be able to call a value by the key at
that point...  Is that possible??


John Engilis


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Re: Calling values by their key in a vector of hashtables...

[Hans Bergsten <ha...@gefionsoftware.com>]

John Engilis wrote:
> I would like to iterate over a vector of hash tables and then pull the
> values from the hashtable by the key...  Will JSTL allow me to do this??
> 
> I've read through some JSTL books and I can see that one is able to iterate
> over a vector with a forEach and then over a hashtable in the same fashion
> displaying the keys and their associated value (in no specific order that
> they were entered), but I'd like to be able to call a value by the key at
> that point...  Is that possible??

Sure:

   <c:forEach items="${myVector}" var="aMap">
     <c:out value="${aMap.aKey}" />
   </c:forEach>

Since you already know the key names, just use them; no need to loop
over them.

Hans
-- 
Hans Bergsten                                <ha...@gefionsoftware.com>
Gefion Software                       <http://www.gefionsoftware.com/>
Author of O'Reilly's "JavaServer Pages", covering JSP 1.2 and JSTL 1.0
Details at                                    <http://TheJSPBook.com/>


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