struts2标签iterator

<!--
          iterator说明
            *  当前正在迭代的元素在栈顶
            *  如果value属性不写，则默认迭代栈顶的元素
            *  value值如果为top,则也是迭代栈顶的元素
          -->
         
         <s:iterator value="#departmentList">
    <tr class="TableDetail1 template">
     <td><s:property value="dname"/></td>
     <td><s:property value="description"/></td>
     <td>
      <s:a action="">删除</s:a>
      <a href="saveUI.html">修改</a>
     </td>
    </tr>
   </s:iterator>
   
    <!--
     list中含有list
     -->
     <!--
     <s:iterator>
      <s:iterator>
       <s:property value="dname"/>
      </s:iterator>
     </s:iterator>
      -->
     <!--
      list中含有map
      -->
      <!--
      <s:iterator value="#list">
         <s:iterator value="top">
          <s:property value="key"/>
          <s:property value="value.dname"/>
         </s:iterator>
      </s:iterator>
       -->
       <!--
        map中含有list
        -->
        <!--
        <s:iterator value="#maps">
         <s:property value="key"/>
         <!--
          该迭代就是一个list
          -->
        <!--
         <s:iterator value="value">
          <s:property value="dname"/>
         </s:iterator>
        </s:iterator>
         -->

相应的action的方法

  //ServletActionContext.getRequest().setAttribute("departmentList", departmentList);
//  List<List<Department>> lists = new ArrayList<List<Department>>();
//  Department department1 = new  Department();
//  department1.setDname("department1_name");
//  Department department2 = new  Department();
//  department2.setDname("department2_name");
//  List<Department> departmentList1 = new ArrayList<Department>();
//  departmentList1.add(department1);
//  List<Department> departmentList2 = new ArrayList<Department>();
//  departmentList2.add(department2);
//  lists.add(departmentList1);
//  lists.add(departmentList2);
//  
//  List<Map<String, Department>> lists2 = new ArrayList<Map<String,Department>>();
//  Map<String, Department> map1 = new HashMap<String, Department>();
//  map1.put("d1", department1);
//  Map<String, Department> map2 = new HashMap<String, Department>();
//  map2.put("d2", department2);
//  lists2.add(map1);
//  lists2.add(map2);
//  
//  Map<String, List<Department>> maps = new HashMap<String, List<Department>>();
//  maps.put("list1", departmentList1);
//  maps.put("list2", departmentList2);
//  ActionContext.getContext().put("maps", maps);