public class GroupService {

    @Resource
    protected GroupBhv groupBhv;

    @Resource
    protected FessConfig fessConfig;

    @Resource
    protected UserBhv userBhv;

    public List<Group> getGroupList(final GroupPager groupPager) {

        final PagingResultBean<Group> groupList = groupBhv.selectPage(cb -> {
            cb.paging(groupPager.getPageSize(), groupPager.getCurrentPageNumber());