java分页

public List<SubList> paging(List<Integer> list, int pageSize) {
    //总条数
    int totalSum = list.size();
    //总页数
    int totalPage = (totalSum / pageSize) + (totalSum % pageSize > 0 ? 1 : 0);

    //创建一个总页数大小的subList容器
    List<SubList> subLists = new ArrayList<>();
    for (int i = 0; i < totalPage; i++) {
        subLists.add(new SubList());
    }

    //以pageSize大小分割list
    int index = 0;
    for (Integer s : list) {
        //从subList最后一个元素开始添加list
        SubList subList = subLists.get(subLists.size() - 1 - index / pageSize);
        subList.add(s);
        //每pageSize个为一组，用index计数器来区分
        index++;
    }

    return subLists;
}

 

传递page，size，根据list分页

List results = maps.stream().skip(pageSize * (pageNum - 1)).limit(pageSize).collect(Collectors.toList());