若依框架 --- 菜单已分配，无法删除解决

public AjaxResult remove(@PathVariable("menuId") Long menuId){   
    if (menuService.selectCountMenuByParentId(menuId) > 0)    {
    return AjaxResult.warn("存在子菜单,不允许删除");  
    }   
    if (menuService.selectCountRoleMenuByMenuId(menuId) > 0)    {
    return AjaxResult.warn("菜单已分配,不允许删除");   
    }   
    return toAjax(menuService.deleteMenuById(menuId));
}