How to display values of an ArrayList that is defined in the JSP itself, using JSTL

jsp arraylist foreach jstl el

20,759

Solution 1

You need to put the array in the request. Do this right after the last fruits.add() call.

<%= request.setAttribute( "fruits", fruits ); %>

Solution 2

add pageContext.setAttribute("fruits", fruits);

<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ page import="java.util.ArrayList" %>

<%
ArrayList<String> fruits = new ArrayList<String>();
fruits.add("Orange");
fruits.add("Apple");
pageContext.setAttribute("fruits", fruits);
%>
<html>
<head>
<title>JSTL</title>
</head>
<body>
    <c:forEach var="fruit" items="${fruits}">
     <c:out value="${fruit}" />
    </c:forEach>
</body>
</html>

20,759

Author by

Admin

Updated on July 09, 2022

Comments

Admin almost 2 years
I have an ArrayList that is defined in a scriptlet in a JSP. In the body section, I want to display the items using a JSTL forEach loop.

After going through tutorials like this one, I have written the following code:
```
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ page import="java.util.ArrayList" %>

<%
ArrayList<String> fruits = new ArrayList<String>();
fruits.add("Orange");
fruits.add("Apple");
%>

<html>
<head>
    <title>JSTL</title>
</head>
<body>
    <c:forEach var="fruit" items="${fruits}">
        <c:out value="${fruit}" />
    </c:forEach>
</body>
</html>
```
But I am getting a blank page. Where am I going wrong in the above code?

All tutorials that I could find seem to define an ArrayList of beans in the servlet and pass them to the JSP through the request. In the forEach loop, they use c:out and ${bean.prop} to print it. I haven't tried them as such. I wanted to do something much simpler, but can't seem to get this code to work.