/**
  * 后台首页 
  */
 public function indexAction()
 {
     $admin_service = new AdminService();
     $admin = $admin_service->checkLogin();
     $admin_id = $admin['admin_id'];
     $department_id = $admin['department_id'];
     //管理员菜单列表
     $admin_menus = $admin_service->getAdminMenus($admin_id, $department_id);
     //一级菜单
     $top_menus = $admin_service->getTopMenu();
     $this->view->assign(array('menus' => json_encode($admin_menus), 'top_menus' => json_encode($top_menus), 'admin' => $admin));
 }