利用mybatis-plus的分页

@Service
public class ReportDynamicGroupServiceImpl extends ServiceImpl<ReportDynamicGroupMapper, ReportDynamicGroup> implements ReportDynamicGroupService {

    @Override
    public IPage queryReportDynamicGroups(Long id, Long pageNumber, Long pageSize) {
        if (pageNumber == null) {
            pageNumber = 1L;
        }
        if (pageSize == null) {
            pageSize = 10L;
        }
        Page<ReportDynamicGroup> reportDynamicGroupPage = new Page<>(pageNumber, pageSize);
        LambdaQueryWrapper<ReportDynamicGroup> eq = new LambdaQueryWrapper<ReportDynamicGroup>().eq(ReportDynamicGroup::getReportId, reportDynamicGroupPage);
        return page(reportDynamicGroupPage, eq);
    }
}