条件构造

<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>

<c:if test= "${haveMenus != null} ">
<c:forEach var= "menu " items= "${haveMenus} ">
<script type= "text/javascript ">
var name = "${menu} ";
selectRoleHaveMenus(name);
</script>
</c:forEach>
</c:if>