Questions tagged [jstl]
JSTL (Jakarta Standard Tag Library) is a XML based standard tag library which offers tags to control the flow in a Facelets or JSP page, date/number formatting and internationalization facilities and several utility EL functions.
jstl
698
questions
177
votes
3
answers
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JSTL in JSF2 Facelets... makes sense?
I would like to output a bit of Facelets code conditionally.
For that purpose, the JSTL tags seem to work fine:
<c:if test="${lpc.verbose}">
...
</c:if>
However, I'm not sure if ...
- 9,607
191
votes
23
answers
493k
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How to install JSTL? It fails with "The absolute uri cannot be resolved" or "Unable to find taglib" or NoClassDefFoundError or ClassCastException
I don't know what I've done incorrectly, but I can't include JSTL. I have jstl-1.2.jar, but unfortunately I get exception:
org.apache.jasper.JasperException: The absolute uri: http://java.sun.com/...
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32
votes
6
answers
147k
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javax.el.PropertyNotFoundException: Property 'foo' not found on type com.example.Bean
I have results from
Query query = session.createQuery("From Pool as p left join fetch p.poolQuestion as s");
query and I would like to display it on JSP.
I have loop:
<c:forEach items="${pools}"...
- 2,145
21
votes
1
answer
30k
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JSTL c:if doesn't work inside a JSF h:dataTable
I'm trying to use <c:if> to conditionally put a <h:outputLink> inside a <h:dataTable> when the state is finished.
<h:dataTable value="#{bean.items}" var="item" width="80%">
...
- 1,524
4
votes
1
answer
4k
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Collect and save submitted values of multiple dynamic HTML inputs back in servlet
I am able to display an ArrayList of beans in a JSP form using JSTL by looping through the list and outputting the bean properties in a HTML input tag.
<c:forEach items="${listOfBeans}" var="bean"&...
- 41
427
votes
8
answers
849k
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Evaluate empty or null JSTL c tags
How can I validate if a String is null or empty using the c tags of JSTL?
I have a variable named var1 and I can display it, but I want to add a comparator to validate it.
<c:out value="${var1}...
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votes
2
answers
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How to compare two object variables in EL expression language?
I am creating a drop down list of all languages. The default language selection for the list will be determined by information added by the user:
<select>
<c:forEach items="${languages}"...
- 1,592
35
votes
4
answers
64k
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How to iterate an ArrayList inside a HashMap using JSTL?
I have a map like this,
Map<Integer,ArrayList<Object>> myMap = new LinkedHashMap<Integer,ArrayList<Object>>();
Now I have to iterate this Map and then the ArrayList inside ...
- 36.5k
86
votes
5
answers
149k
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EL access a map value by Integer key
I have a Map keyed by Integer. Using EL, how can I access a value by its key?
Map<Integer, String> map = new HashMap<Integer, String>();
map.put(1, "One");
map.put(2, "Two");
map.put(3, "...
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15
votes
2
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java.lang.NoClassDefFoundError: javax/servlet/jsp/jstl/core/Config
I am developing an application for FB Login with website using Javascript and JSF. I have posted my code at here. The problem is, when I run my application it does't show the JSF page, it instead ...
- 2,760
9
votes
3
answers
15k
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How to access objects in EL expression language ${}
If I have a
ArrayList<Person> persons
How do I access it in EL?
<c:foreach items="${what goes here??}" var="person">${person.title}</c:foreach>
user568171
64
votes
18
answers
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Can not find the tag library descriptor for “http://java.sun.com/jsp/jstl/core” [duplicate]
I have included this at the very top of my JSP page:
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
I already placed the JSTL JAR file in the WEB-INF/lib directory. But still,...
- 16k
15
votes
3
answers
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javax.servlet.ServletException: javax.servlet.jsp.JspTagException: Don't know how to iterate over supplied "items" in <forEach>
I have a Bean that holds the results. I need to use JSTL to iterate over it and present the results. Here is the bean:
public class DetResults
{
private List<String> headings;
private ...
- 10.2k
26
votes
5
answers
23k
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How to concatenate a String in EL?
How do I get the promoPrice variable to print as part of the string ONLY $4.67?
<c:set var="promoPrice" value="4.67" />
<p>${(promoPrice != null) ? "ONLY $${promoPrice}" : "FREE"}</p&...
- 580
45
votes
4
answers
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How to call parameterized method from JSP using JSTL/EL
How to call a Java method with arguments which is defined in Java class, from JSP using JSTL/EL. The method is returning arrays. Any return value can be used.
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