Parameters in EL methods

Question

I want to use a method in JSP using EL that has a parameter. But EL doesn\'t support parameters in methods. Actually I want to show a table, which has a field that output a list

Answer 1

The support for passing method arguments and invoking non-getter methods was introduced in EL 2.2 which is part of Servlet 3.0. So your best bet is to upgrade to a Servlet 3.0 compatible container, such as Tomcat 7, Glassfish 3, JBoss AS 6 and ensure that your web.xml is declared conform Servlet 3.0 spec, so that you can do the following:

<c:forEach var="entrant" items="${bean.entrants}">
    <tr>
        <td>${entrant.idEntrant}</td>
        <td>${bean.getGroupCode(entrant.idGroup)}</td>
        <td>${entrant.name}</td>
    </tr>
</c:forEach>

If your container doesn't support it, then your best bet is to create a custom EL function.

        <td>${some:getGroupCode(bean, entrant.idGroup)}</td>