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Mybatis-plus把List数据分页

作者:互联网

一、编写工具类:

/**
 * @project 工资条应用服务系统
 * @Description  多表联查-分页
 * @Author songwp
 * @Date 2022/8/8 10:31
 * @Version 1.0.0
 **/
public class PageUtils {

    public static Page getPages(Integer pageNo, Integer pageSize, List list){
        Page page = new Page();
        int size = list.size();
        if(pageSize > size){
            pageSize = size;
        }
        // 求出最大页数,防止currentPage越界
        int maxPage = size % pageSize == 0 ? size / pageSize : size / pageSize + 1;
        if(pageNo > maxPage){
            pageNo = maxPage;
        }
        // 当前页第一条数据下标
        int currentIndex = pageNo > 1 ? (pageNo -1) * pageSize : 0;
        List pageList = new ArrayList<>();
        // 将当前页的数据放进pageList
        for (int i = 0; i < pageSize && currentIndex + i < size; i++) {
            pageList.add(list.get(currentIndex + i));
        }
        page.setCurrent(pageNo).setSize(pageSize).setTotal(list.size()).setRecords(pageList);
        return page;
    }
}

二、调用测试数据显示:

{"records": [
            {
                "year": "2022",
                "month": "2",
                "sendTime": "2022-08-05T10:48:13.000+0000",
                "haveSent": 4,
                "totalSend": 5,
                "totalSalary": 1000010.0,
                "uploadId": "1555505949937033218",
                "pushStatus": 1
            }
        ],
        "total": "2",
        "size": "1",
        "current": "0",
        "orders": [],
        "optimizeCountSql": true,
        "searchCount": true,
        "countId": null,
        "maxLimit": null,
        "pages": "2"
    }
}

标签:pageSize,pageNo,int,pageList,List,list,plus,Mybatis,size
来源: https://www.cnblogs.com/songweipeng/p/16561217.html