Basic JSTL

Core JSTL

Cornelius Koo, ST
JavaSchool
2005
Jl. Cemara 2/20, Salatiga

Don’t Forget The Taglib
<%@ taglib prefix="c"
uri="http://java.sun.com/jsp/jstl/core" %>

<c:out value='Hello World'/>

out.jsp

<table>
<c:forEach var="movie"
items="${movieList}"
varStatus="movieLoopCount">
<tr>
<td>${movieLoopCount.count}</td>
<td>${movie}</td>
</tr>
</c:forEach>
</table>
forEach.jsp

<c:if test="${param.user eq 'Member'}">
<jsp:include page="inputComments.jsp"
flush="true"/>
</c:if>
<c:if test="${param.user eq 'Non-Member'}">
<jsp:include page="suggestion.jsp"flush="true"/>
</c:if>
<c:if test="${empty param.user}">
<c:out value='Give your choice...'/>
</c:if> if.jsp

<c:choose>, <c:when>,
<c:otherwise>

<c:choose>
<c:when test="${param.level == 'insane'}">
All enemy heroes are 200% stronger
</c:when>
<c:when test="${param.level == 'normal'}">
All enemy heroes are have the same power level compared to
yours
</c:when>
<c:when test="${param.level == 'easy'}">
Your hero will be the strongest
</c:when>
<c:otherwise>
You have to choose your game level
</c:otherwise>
</c:choose>

choose.jsp

<c:set var="level" scope="session"
value="insane"/>
Level: ${level}

<c:set var="player" scope="session">
Zaradaz
</c:set>
<br/>
Players : ${player}
set-var.jsp

<jsp:useBean id="person" class="jsp.example.bean.Employee"/>
<jsp:setProperty name="person" property="name"
value="John"/>

<c:set target="${person}" property="address" value="Dipo 64"/>
<c:set target="${person}" property="age">
55
</c:set>
<br/>
Name : ${person.name}
<br/>
Address : ${person.address}
<br/>
Age : ${person.age}
set-target.jsp

<c:set var="level" scope="session"
value="insane"/>
Level: ${level}

<c:set var="player" scope="session">
Zaradaz
</c:set>
<br/>
Players : ${player}
<c:remove var="player" scope="session"/>
<br/>
Players is now : ${player} set-var.jsp

• It can be use to include static page from
outside the web-container.

<c:import
url=“http://www.google.com/index.html”
/>

import.jsp

<c:import url="action_header.jsp">
<c:param name="title" value="This is the
header's title"/>
</c:import>

body.jsp

<a href="<c:url value='/jstl/inputComments.jsp'/>">
Click Here </a>

url.jsp

<c:catch var="userException">
<% int x = 1/0; %>
There is no error...
</c:catch>

<c:if test="${userException != null}">
There was an exception :
${userException.message}
</c:if>
<br/>
Done catch.jsp

<%@ taglib uri='WEB-INF/tlds/restrictJavaCode.tld' prefix='rjc'
%>
<%@ taglib uri='WEB-INF/tlds/restrictTaglibs.tld' prefix='rtl' %>
<%@ taglib uri='http://java.sun.com/jsp/jstl/core' prefix='c' %>
<html>
<head>
<title>Test Validator</title>

</head>

<body>
<c:out value='This one will pass the test...'/>
<%-- out.println("This one won't"); --%>
</body>
</html>
jsp/validated.jsp

Basic JSTL

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