How to access "isUserInRole" in jsp using JSTL

Question

I am making a JSP/Servlet CRUD with MySQL. I currently have 2 roles in my project: manager and employee. I want to display different data based on these roles. How do I access the request.isUserInRole() method without using scriptlets? I heard that using scriptlets are bad.

I temporarily have the following code:

<c:if <%request.isUserInRole("manager");%>=true> <!-- Display something --> <c:if <%request.isUserInRole("employee");%>=true> <!-- Display something -->

But I get an error:

HTTP Status 500 - /protected/listUser.jsp (line: 97, column: 9) Unterminated <c:if tag

Which is probably some problem with JSTL mixing in with a scriptlet.

How would I access the isUserInRole() method in my JSP page with only JSTL?

Answer 1

You should specify condition with test attribute (which is required).

It could be achieved with

  <% request.setAttribute("isManager", request.isUserInRole("manager")); %>
  <c:if test="${requestScope.isManager}">
    <!-- Display manager -->
  </c:if>
  <c:if test="${!requestScope.isManager}">
    <!-- Display employee -->
  </c:if>

or with

  <% request.setAttribute("isManager", request.isUserInRole("manager")); %>
  <c:choose>
    <c:when test="${requestScope.isManager}">
      <!-- Display manager -->
    </c:when>
    <c:otherwise>
      <!-- Display employee -->
    </c:otherwise>
  </c:choose>