You can use JSTL <c:forEach> tag to iterate over arrays, collections and maps. In case of arrays and collections, every iteration the var will give you just the currently iterated item right away. <%@ taglib prefix=”c” uri=”http://java.sun.com/jsp/jstl/core” %> <c:forEach items=”${collectionOrArray}” var=”item”> Item = ${item}<br> </c:forEach> In case of maps, every iteration the var will give … Read more
For those like I who just followed the code by skuntsel and received a cryptic stack trace, allow me to save you some time. It seems c:if cannot by itself be followed by c:otherwise. The correct solution is as follows: <c:choose> <c:when test=”#{some.test}”> <p>some.test is true</p> </c:when> <c:otherwise> <p>some.test is not true</p> </c:otherwise> </c:choose> You … Read more
The cause of the probelm is that , (comma) is the default separator. So at the end the spring message tag will get the String A,B,C,D,E,F for parameter arguments, and it will split this string into 6 different internal arguments for the message. You must change the separator. If you use ; for example, then … Read more
This isn’t a bug, it’s by design. When a new session is created, the server isn’t sure if the client supports cookies or not, and so it generates a cookie as well as the jsessionid on the URL. When the client comes back the second time, and presents the cookie, the server knows the jsessionid … Read more
You seem to concentrate on only the presentation and flow-control part of the scriptlets as in using if, for and switch statements and out.print() things. You seem to compare scriptlets 1:1 with JSTL. This is wrong. I was not talking about the flow control part only (which is indeed to be replaced by JSTL), but … Read more
JSTL variables are actually attributes, and by default are scoped at the page context level. As a result, if you need to access a JSTL variable value in a scriptlet, you can do so by calling the getAttribute() method on the appropriately scoped object (usually pageContext and request). resp = resp + (String)pageContext.getAttribute(“test”); Full code … Read more
<c:if is a simple if-clause. <c:when> has options for multiple if-clauses and an else clause. Compare: <c:if test=”${foo == ‘bar’}”>…</c:if> with <c:choose> <c:when test=”${foo == ‘bar’}”>…</c:when> <c:when test=”${foo == ‘baz’}”>…</c:when> <c:otherwise>…</c:otherwise> </c:choose>
Put the following in WEB-INF/tags/genericpage.tag <%@tag description=”Overall Page template” pageEncoding=”UTF-8″%> <%@attribute name=”header” fragment=”true” %> <%@attribute name=”footer” fragment=”true” %> <html> <body> <div id=”pageheader”> <jsp:invoke fragment=”header”/> </div> <div id=”body”> <jsp:doBody/> </div> <div id=”pagefooter”> <jsp:invoke fragment=”footer”/> </div> </body> </html> To use this: <%@page contentType=”text/html” pageEncoding=”UTF-8″%> <%@taglib prefix=”t” tagdir=”/WEB-INF/tags” %> <t:genericpage> <jsp:attribute name=”header”> <h1>Welcome</h1> </jsp:attribute> <jsp:attribute name=”footer”> <p id=”copyright”>Copyright … Read more
It is not possible because they are executed in different environments (JSP at server side, JavaScript at client side). So they are not executed in the sequence you see in your code. var val1 = document.getElementById(‘userName’).value; <c:set var=”user” value=””/> // how do i set val1 here? Here JSTL code is executed at server side and … Read more
It is going to be a boolean. You can check it by comparing in a <c:if test=”${refreshSent eq false}”> and <c:if test=”${refreshSent eq ‘false’}”> The second is a string comparison.