在項目中使用Struts-menu

MenuRepository repository = new MenuRepository();
// Get the repository from the application scope - and copy the
// DisplayerMappings from it.
MenuRepository defaultRepository = (MenuRepository)
application.getAttribute(MenuRepository.MENU_REPOSITORY_KEY);
repository.setDisplayers(defaultRepository.getDisplayers());

for (int i=0; i < res.getRowCount(); i++) {
MenuComponent mc = new MenuComponent();
String name = res.getString(i, "name");
mc.setName(name);
String parent = res.getString(i,"parent_name");
//System.out.println(name + ", parent is: " + parent);
if (parent != null) {
MenuComponent parentMenu = repository.getMenu(parent);
if (parentMenu == null) {
System.out.println("parentMenu '" + parent + "' doesn't exist!");
// create a temporary parentMenu
parentMenu = new MenuComponent();
parentMenu.setName(parent);
repository.addMenu(parentMenu);
}
mc.setParent(parentMenu);
} else {
topMenuList.add(name);
}
String title = (String)res.getString(i,"title");
mc.setTitle(title);
String location = (String)res.getString(i,"location");
mc.setLocation(location);
repository.addMenu(mc);
}
pageContext.setAttribute("repository", repository);

<%
try {
DropDownPermissionAdapter adapter = new DropDownPermissionAdapter(request);
IMenuBO menuBO = new MenuBO();
TreeSet menuTree = menuBO.getAllowedMenuList("hello");
adapter.initializeMenu(menuTree);
request.getSession().getServletContext().setAttribute(
"AtdMenuAdapter", adapter);
}catch(Exception e)
{
e.printStackTrace() ;
}
%>

<menu:useMenuDisplayer name="TestDropDownDisplayer"
bundle="org.apache.struts.action.MESSAGE" permissions="AtdMenuAdapter">
<menu:displayMenu name="01"/>
</menu:useMenuDisplayer>

public class DropDownPermissionAdapter implements PermissionsAdapter{
protected TreeSet menuTree = null;
;

/**
* 菜單初始化的時候調用
* @throws Exception
*/
public void initializeMenu(TreeSet ts) throws Exception {

this.menuTree =ts;
}

public boolean isAllowed(MenuComponent menu) {

if (menuTree == null || menuTree.contains(menu.getName())) {
return true;
}
else {
return false;
}
}
}