分页封装-蒲公英云

分页封装

public class Page {
    private Integer currentPage;//当前页
    private int pageSize;//每页显示记录条数
    private int totalPage;//总页数
    private List<?> dataList;//每页显示的数据
    private int star;//开始数据
    public Integer getCurrentPage() {
        return currentPage;
    }
    public void setCurrentPage(Integer currentPage) {
        this.currentPage = currentPage;
    }
    public int getPageSize() {
        return pageSize;
    }
    public void setPageSize(int pageSize) {
        this.pageSize = pageSize;
    }
    public int getTotalPage() {
        return totalPage;
    }
    public void setTotalPage(int totalPage) {
        this.totalPage = totalPage;
    }
    public List<?> getDataList() {
        return dataList;
    }
    public void setDataList(List<?> dataList) {
        this.dataList = dataList;
    }
    public int getStar() {
        return star;
    }
    public void setStar(int star) {
        this.star = star;
    }
    public Page pageConver(Integer pageNo, Integer pageSize, List list) {
        //刚开始的页面为第一页
        if (pageNo == null) {
            this.setCurrentPage(1);
        } else {
            this.setCurrentPage(pageNo);
        }
        //设置每页数据
        this.setPageSize(pageSize);
        //每页的开始数
        this.setStar((pageNo - 1) * this.getPageSize());
        //list的大小
        int count = list.size();
        //设置总页数
        this.setTotalPage(count % pageSize== 0 ? count / pageSize: count / pageSize+ 1);
        //对list进行截取
        this.setDataList(list.subList(this.getStar(), count - this.getStar() > this.getPageSize() ? this.getStar() + this.getPageSize() : count));
        return this;
    }
}