String Concatenation in EL [duplicate]
With EL 2 you can do the following: #{‘this’.concat(‘ is’).concat(‘ a’).concat(‘ test!’)}
jstl
Where can I download JSTL jar [closed]
You can download JSTL 1.1 here and JSTL 1.2 here. See also: JSTL wiki page
How to access at request attributes in JSP?
EL expression: ${requestScope.Error_Message} There are several implicit objects in JSP EL. See Expression Language under the “Implicit Objects” heading.
Can not find the tag library descriptor for “http://java.sun.com/jsp/jstl/core” [duplicate]
Can not find the tag library descriptor for “http://java.sun.com/jsp/jstl/core” Based on one of your previous questions you’re using Tomcat 7. In that case you need JSTL 1.2. However, you’ve there a jstl.jar file while JSTL 1.2 has clearly the version number included like so jstl-1.2.jar. The sole filename jstl.jar is typical for JSTL 1.0 and … Read more
Sun JSTL taglib declaration fails with “Can not find the tag library descriptor” [duplicate]
To resolve this issue: The jstl jar should be in your classpath. If you are using maven, add a dependency to jstl in your pom.xml using the snippet provided here. If you are not using maven, download the jstl jar from here and deploy it into your WEB-INF/lib. Make sure you have the following taglib … Read more
jstl foreach omit an element in last record
Just use LoopTagStatus#isLast(). <c:forEach items=”${fileList}” var=”current” varStatus=”loop”> { id: 1001, data: [ “<c:out value=”${current.fileName}” />”, “<c:out value=”${current.path}” />”, “<c:out value=”${current.size}” />”, “<c:out value=”${current.type}” />” ] }<c:if test=”${!loop.last}”>,</c:if> </c:forEach> You can also use the conditional operator in EL instead of <c:if>: ${!loop.last ? ‘,’ : ”}
Increment counter with loop
Try the following: <c:set var=”count” value=”0″ scope=”page” /> //in your loops <c:set var=”count” value=”${count + 1}” scope=”page”/>
How do I compare if a string is not equal to?
Either != or ne will work, but you need to get the accessor syntax and nested quotes sorted out. <c:if test=”${content.contentType.name ne ‘MCE’}”> <%– snip –%> </c:if>
EL access a map value by Integer key
Initial answer (EL 2.1, May 2009) As mentioned in this java forum thread: Basically autoboxing puts an Integer object into the Map. ie: map.put(new Integer(0), “myValue”) EL (Expressions Languages) evaluates 0 as a Long and thus goes looking for a Long as the key in the map. ie it evaluates: map.get(new Long(0)) As a Long … Read more
Evaluate list.contains string in JSTL
there is no built-in feature to check that – what you would do is write your own tld function which takes a list and an item, and calls the list’s contains() method. e.g. //in your own WEB-INF/custom-functions.tld file add this <?xml version=”1.0″ encoding=”ISO-8859-1″ ?> <!DOCTYPE taglib PUBLIC “-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.2//EN” “http://java.sun.com/dtd/web-jsptaglibrary_1_2.dtd”> … Read more