我创建了ViewPreparer的实现来获取分类列表。而我需要在头部获取这个列表。
这是我的实现
public class CategoryMenuViewPreparer implements ViewPreparer {
@Override
public void execute(Request request, AttributeContext attributeContext) {
HttpServletRequest httpServletRequest = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();
HttpSession session = httpServletRequest.getSession();
User user = (User) session.getAttribute("user");
attributeContext.putAttribute("categories", new Attribute(user.getCategories()));
}
}
这是我对瓷砖的定义。
<definition name="CategoryPage" template="/WEB-INF/layouts/DefaultTemplate.jsp" preparer="ua.uzhhorodteam.cactiportal.handlers.CategoryMenuViewPreparer">
<put-attribute name="title" value="Category | TTE Web Portal"/>
<put-attribute name="header" value="/WEB-INF/fragments/defaultHeaderFragment.jsp"/>
<put-attribute name="footer" value="/WEB-INF/fragments/defaultFooterFragment.jsp"/>
<put-attribute name="body" value="/WEB-INF/views/categoryPage.jsp"/>
</definition>
那么,我怎么才能把分类列表写在头部作为菜单呢?
你可以使用importAttributes来获取 "category",如
<tiles:importAttribute name="categories">
<c:forEach var="c" items=${categories}>
<c:out value="${c}"/>
</c:forEach>