c标签遍历map

后台：

public class QueryOrdersAction extends BasePublicProfileAction {

    private List<Order> orderList;

    @Override

    public String execute() throws Exception {

        OrderDao orderDao=new OrderDao();

        orderList = orderDao.select("");

        /*Collection<Integer> gids= GarUtils.listCollect(orderList,"gid",true);

        if(gids!=null&&gids.size()>0){

            GradeDao gradeDao=new GradeDao();

            List<Grade> gradeList=gradeDao.getIdsIn(gids);

            Map<Integer,Grade> gradeMap=GarUtils.list2Map(gradeList,"id");

            request.setAttribute("gradeMap",gradeMap);

        }*/

        return super.execute();

    }

}

前端JSP：

<c:forEach items="${moduleList}" var="module">
<tr>
<td> ${gradeMap[module.gid].name} </td>

</tr>

</c:forEach>