java - 如何编写 JSTL 而不是 Scriplet 来获取用户 Session？

Question

以下:

<% if ((String) session.getAttribute("userID") != null) { 
     String username= (String) session.getAttribute("userID"); %> 
     <li><a><small>Logged in as <%=username %></a></li> 
<% } %>

谢谢

Answer 1

应该工作:

<c:if test="${not empty sessionScope.userID}">
  <li><a><small>Logged in as ${sessionScope.userID}</a></li>
</c:if>