c标签foreach循环list嵌套

jstl标签代码：

 <c:forEach items="${contrlList}" var="s">
    <c:forEach items="${rightContrl}" var="u" >
        <c:if test="${s.menuId == u.pid.trim()}">
                ${s.menuId}c / ${u.pid}c <br />
        </c:if>
     </c:forEach>
</c:forEach>