struts2获得session的值

ActionContext context=ActionContext.getContext();  Map session=context.getSession();user=userService.getAdminInfo(); session.put("admin", user);

?

在页面上取：

?? <s:property value='#session.admin.ulogo'/>

?或

??? ${sessionScope.admin.ulogo}

?

ActionContext context=ActionContext.getContext();Map session=context.getSession();categoryList=categoryService.getCategories();session.put("categoryList", categoryList); 

?

<s:iterator value="#session.categoryList" id="ca">
????<li>
?????<a
??????href="getBlogsByCaId?category.caId=<s:property value="#ca.caId"/>">${caName} </a>
????</li>
???</s:iterator>