<%@ page contentType="text/plain" %> <%@ taglib prefix="c" uri="http://java.sun.com/jstl/core"; %>
<jsp:useBean id="map" class="java.util.HashMap"/>
<% map.put(new Integer(1), "One"); map.put(new Integer(2), "Two"); map.put(new Integer(3), "Three");
pageContext.setAttribute("two", new Integer(2));
%><c:set var="twoValue" value="${2}"/>
<c:set var="twoString" value="2"/>'<c:out value="${map[two]}"/>'
'<c:out value="${map[2]}"/>'
'<c:out value="${map['2']}"/>'
'<c:out value="${map[twoValue]}"/>'
'<c:out value="${map[twoString]}"/>'Here's the output:
'Two' '' '' '' ''
So, if you've already got a key as a scoped attribute, you're okay. Otherwise, I don't see how to get JSTL to deal with it. Anyone else have any insight?
N. Chen wrote:
I believe you can do (with reportID a variable containing the key) <:set var="laborReport" value='${mapOfLaborReports[reportID]}'/>
which is very different from (with "reportID" as the key) <:set var="laborReport" value='${mapOfLaborReports["reportID"]}'/>
so to use 3 as a key <c:set var="laborReport" value='${mapOfLaborReports["3"]}'/>
nick On 16 Jul 2003, Rick Reumann wrote:
There is probably a real easy answer for these two questions, but I searching the archives for a while hasn't helped...
1) I have beans in a map that are stored with integers for the keys.
For testing I can retrive the bean out fine with the key of "test" like:
<c:set var="laborReport" value="${mapOfLaborReports.test}"/>
But if I try this with...
<c:set var="laborReport" value="${mapOfLaborReports.3}"/>
I get a parsing error:
4: tag = 'set' / attribute = 'value': An error occurred while parsing custom action attribute "value" with value "${mapOfLaborReports.3}": Encountered ".3", expected one of ["}", ".", ">", "gt", "<", "lt", "==", "eq", "<=", "le", ">=", "ge", "!=", "ne", "[", "+", "-", "*", "/", "div", "%", "mod", "and", "&&", "or", "||", ":", "("]
2) Also, is there a way that I can some how nest my expressions? In other words say "test" is the value of a parameter with the name "reportID" in scope. Now in the first example I'd like to be able to do something like...
<:set var="laborReport" value="${mapOfLaborReports.${reportID}}"/>
(Tied into the first question reportID is an Integer but if need be I can make sure it's a String representation of the Integer).
Thanks for any help.
-- Rick
-- Kris Schneider <mailto:[EMAIL PROTECTED]> D.O.Tech <http://www.dotech.com/>
--------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
