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  • Java8实现分页

    import cn.hutool.json.JSONUtil;
    import java.util.ArrayList;
    import java.util.List;
    import java.util.stream.Collectors;
    
    public class Test {
        public static void main(String[] args) {
    
            List<Detail> DetailList = new ArrayList<>();
            Detail detail = new Detail();
            detail.setId(1l);
            DetailList.add(detail);
            detail = new Detail();
            detail.setId(2l);
            DetailList.add(detail);
            detail = new Detail();
            detail.setId(3l);
            DetailList.add(detail);
            detail = new Detail();
            detail.setId(4l);
            DetailList.add(detail);
            detail = new Detail();
            detail.setId(5l);
            DetailList.add(detail);
            detail = new Detail();
            detail.setId(6l);
            DetailList.add(detail);
            detail = new Detail();
            detail.setId(7l);
            DetailList.add(detail);
            detail = new Detail();
            detail.setId(8l);
            DetailList.add(detail);
            detail = new Detail();
            detail.setId(9l);
            DetailList.add(detail);
            detail = new Detail();
            detail.setId(10l);
            DetailList.add(detail);
            detail = new Detail();
            detail.setId(11l);
            DetailList.add(detail);
            detail = new Detail();
            detail.setId(12l);
            DetailList.add(detail);
            detail = new Detail();
            detail.setId(13l);
            DetailList.add(detail);
    
            int pageSize = 2;// 条数
            int listCount = DetailList.size();
            int totalPage = listCount % pageSize > 0 ? listCount / pageSize + 1 : listCount / pageSize;
            System.out.println("--------totalPage:"+totalPage);
    
            for (int i = 1; i < totalPage+1; i++) {
                int pageNo = (i - 1) ;
                System.out.println("--------pageNo:"+pageNo);
                List<Detail> modelList = DetailList.stream().skip(pageNo * pageSize).limit(pageSize).collect(Collectors.toList());
                String jsonStr = JSONUtil.toJsonStr(modelList);
                System.out.println("---jsonStr:"+jsonStr);
            }
        }
    }
    --------totalPage:7
    --------pageNo:0
    ---jsonStr:[{"asc":" asc","start":0,"pageSize":30,"id":1},{"asc":" asc","start":0,"pageSize":30,"id":2}]
    --------pageNo:1
    ---jsonStr:[{"asc":" asc","start":0,"pageSize":30,"id":3},{"asc":" asc","start":0,"pageSize":30,"id":4}]
    --------pageNo:2
    ---jsonStr:[{"asc":" asc","start":0,"pageSize":30,"id":5},{"asc":" asc","start":0,"pageSize":30,"id":6}]
    --------pageNo:3
    ---jsonStr:[{"asc":" asc","start":0,"pageSize":30,"id":7},{"asc":" asc","start":0,"pageSize":30,"id":8}]
    --------pageNo:4
    ---jsonStr:[{"asc":" asc","start":0,"pageSize":30,"id":9},{"asc":" asc","start":0,"pageSize":30,"id":10}]
    --------pageNo:5
    ---jsonStr:[{"asc":" asc","start":0,"pageSize":30,"id":11},{"asc":" asc","start":0,"pageSize":30,"id":12}]
    --------pageNo:6
    ---jsonStr:[{"asc":" asc","start":0,"pageSize":30,"id":13}]
    
    Process finished with exit code 0

    参考:https://blog.csdn.net/weixin_44476553/article/details/110536713

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  • 原文地址:https://www.cnblogs.com/lanliying/p/15624765.html
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