List of objects + getters + c:forEach

Hi,

Thank you for reading my post.

Suppose I have the following Java class:

Code:

package com.test; public class Person { private String ms_fstName = null; private String ms_name = null; public Person(String s_fstName, String s_name) { ms_fstName = s_fstName; ms_name = s_name; } public String getMs_fstName() { return ms_fstName; } public String getMs_name() { return ms_name; } }

Now, suppose I have the following JSP:

Code:

<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%> <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%> <%@ page import="com.test.Person"%> <%@page import="java.util.ArrayList"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>JSTL tests</title> </head> <body> <% Person p0 = new Person("Jane", "Deejena"); Person p1 = new Person("Antonin", "Brontu"); Person p2 = new Person("Jojo", "Latortue"); ArrayList<Person> persons = new ArrayList<Person>(); persons.add(0, p0); persons.add(1, p1); persons.add(2, p2); %> <c:forEach items="persons" var="person"> <c:out value="${person.getMs_fstName()} "></c:out> <c:out value="${person.getMs_name()}"></c:out> <br /> </c:forEach> </body> </html>

Basically, I just want to print a list of persons' first name and name.
But the above code doesn't work (nothing is printed).
Can you tell me what I do wrong and how to do things right?
I suspect putting Java code inside JSTL XML elements attributes values is not correct but I don't know what I should do instead...

Thank you for helping and best regards,
--
Lmhelp

I made a change in the "Person" class (in blue) and corrected an error (in red) in the JSP.

Change in the Person class:

Code:

Before: [COLOR="Blue"]private [/COLOR]String ms_fstName = null; After: [COLOR="Blue"]public [/COLOR]String ms_fstName = null;

Correcting in the JSP:

Code:

Before: <c:forEach items="persons" var="person"> <c:out value="${person.getMs_fstName()} "></c:out> <c:out value="${person.getMs_name()}"></c:out> <br /> </c:forEach> After: <c:forEach items="[COLOR="Red"]${[/COLOR]persons[COLOR="Red"]}[/COLOR]" var="person"> <c:out value="${person.ms_fstName} "></c:out> <br /> </c:forEach>

The persons' first names are printed.

Now,if I add the line in red below, I have an error:

Code:

<c:forEach items="${persons}" var="person"> <c:out value="${person.ms_fstName}"></c:out> [COLOR="Red"]<c:out value="${person.getMs_name()}"></c:out>[/COLOR] <br /> </c:forEach>

The error:

Code:

SEVERE: Servlet.service() for servlet jsp threw exception org.apache.jasper.JasperException: /jstl_tests.jsp(36,3) The function getMs_name must be used with a prefix when a default namespace is not specified

Can you tell me what you think about that?

Thanks and best regards,
--
Lmhelp

))
Why did you decide to use the person.ms_fstName instead person.getMs_fstName how you use for two statement?

Code:

<c:out value="${person.ms_fstName}"></c:out>

This works because this is proper EL.
It will take the attribute name and convert it into a getMs_fstName() call.

Make the attribute private again.

And you need to look at your naming convention. It's seriously non-standard.

Thank you for your answers.

I made the member "ms_fstName" private again as "Tolls" suggested
and indeed it still works (I think this answers "Petr"'s question).

Thank you and best regards,
--
Lmhelp