Hi all
According to the documentation, it's possible to get data from a HashMap in
JSTL. Unfortunately, it doesn't really work for me...
Here's the deal: A stock has a collection of charts, thus:
stock.numberOfCharts = <c:out value="${stock.numberOfCharts}"/><br>
stock.charts = <c:out value="${stock.charts}"/>
<c:forEach var="chart" items="${stock.charts}">
<br>-> chart = <c:out value="${chart}"/>
</c:forEach>
results in
stock.numberOfCharts = 9
stock.charts = {1M=ch.xobix.contentgroup.controller.ImageWrapper@f6ae1c,
2M=ch.xobix.contentgroup.controller.ImageWrapper@20d6b7,
3M=ch.xobix.contentgroup.controller.ImageWrapper@f08d0f,
6M=ch.xobix.contentgroup.controller.ImageWrapper@bcfa38,
1Y=ch.xobix.contentgroup.controller.ImageWrapper@cfaf6e,
2Y=ch.xobix.contentgroup.controller.ImageWrapper@6989e,
3Y=ch.xobix.contentgroup.controller.ImageWrapper@dd7a7,
5Y=ch.xobix.contentgroup.controller.ImageWrapper@c94114,
YTD=ch.xobix.contentgroup.controller.ImageWrapper@cf9bf0}
-> chart = 1M=ch.xobix.contentgroup.controller.ImageWrapper@f6ae1c
-> chart = 2M=ch.xobix.contentgroup.controller.ImageWrapper@20d6b7
-> chart = 3M=ch.xobix.contentgroup.controller.ImageWrapper@f08d0f
-> chart = 6M=ch.xobix.contentgroup.controller.ImageWrapper@bcfa38
-> chart = 1Y=ch.xobix.contentgroup.controller.ImageWrapper@cfaf6e
-> chart = 2Y=ch.xobix.contentgroup.controller.ImageWrapper@6989e
-> chart = 3Y=ch.xobix.contentgroup.controller.ImageWrapper@dd7a7
-> chart = 5Y=ch.xobix.contentgroup.controller.ImageWrapper@c94114
-> chart = YTD=ch.xobix.contentgroup.controller.ImageWrapper@cf9bf0
which is fine. However, how can I address one entry?
If I try
chart = <c:out value="${stock.charts["1M"]}"/>
I get
javax.servlet.ServletException: /jsp/financialdata/show.jsp(33,40) Attribute
1M has no value
By the way, my getCharts() returns a LinkedHashMap (I wanted the same
sequence as when I inserted the objects). Theoretically, shouldn't I be able
to traverse it like e.g. an ArrayList?
chart[0] = <c:out value="${stock.charts[0]}"/>
doesn't give me anything, though...
Best regards,
Eric
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