pagehelper 对List结果集分页

public class PageUtil {
 
    public static <T> PageInfo<T> startPage(List<T> list, Integer pageNum, Integer pageSize) {
public Page<YyAccountWorehouseEntity.AccountListVo> getPage(YyAccountWorehouseEntity.QueryPage queryPage) {
    List<YyAccountWorehouseEntity.AccountListVo> list = yyAccountWorehouseMapper.getPage(queryPage);
    //创建Page类
    int pageNum = queryPage.getPage();
    if (pageNum == 0) {
        pageNum = 1;
    }
    int pageSize = queryPage.getLimit();
    Page page = new Page(pageNum, pageSize);
    //为Page类中的total属性赋值
    page.setTotal(list.size());
    //计算当前需要显示的数据下标起始值
    int startIndex = (pageNum - 1) * pageSize;
    int endIndex = Math.min(startIndex + pageSize, list.size());
    //从链表中截取需要显示的子链表,并加入到Page
    List<YyAccountWorehouseEntity.AccountListVo> accountListVos = list.subList(startIndex, endIndex);
    page.setRecords(accountListVos);
    //以Page创建PageInfo
    return page;
}



 
}
 

 

posted @ 2021-08-10 14:48  这很周锐  阅读(660)  评论(0编辑  收藏  举报