RouteServiceImpl

public class RouteServiceImpl implements RouteService {

    private RouteDao d = new RouteDaoImpl();

    @Override

    public PageBean<Route> pageQuery(int cid,int currentPage,int pageSize){

        PageBean<Route> pb = new PageBean<>();

//        设置当前页码

        pb.setCurrentPage(currentPage);

//        设置每页显示条数

        pb.setPageSize(pageSize);

//        设置总记录数

        int totalCount = d.findTotalCount(cid);

        pb.setTotalCount(totalCount);

//        设置当前页显示的数据集合

        int start = (currentPage - 1) * pageSize;

        List<Route> list = d.findByPage(cid,start,pageSize);

        pb.setList(list);

//        设置总页数

        int totalPage = totalCount % pageSize == 0 ? totalCount/pageSize : (totalCount/pageSize) + 1;

        pb.setTotalPage(totalPage);

        return pb;

    }

}