java-mybatis-手动分页工具类

使用

List<PhcpSaBankAl> saBankAlList = phcpSaBankAlDao.getBankInfoList(loginUserType.getCityCode(), phcpSaBankAl.getCreateDate());
Page pages = PageUtils.getPages(phcpSaBankAl.getPage(), phcpSaBankAl.getSize(), saBankAlList);
return Result.ok("查询成功", pages);

工具类

package com.chinaums.mqy.util;

import com.baomidou.mybatisplus.extension.plugins.pagination.Page;

import java.util.ArrayList;
import java.util.List;

/**
 * 分页工具类
 *
 * @author JeWang
 */
public class PageUtils {
    public static Page getPages(Integer currentPage, Integer pageSize, List list) {
        Page page = new Page();
        int size = list.size();
        if (pageSize > size) {
            pageSize = size;
        }
        int maxPage;
        if (pageSize > 0) {
            maxPage = size % pageSize == 0 ? size / pageSize : size / pageSize + 1;
            if (currentPage > maxPage) {
                currentPage = maxPage;
            }
            //当前页第一条数据下标
            int curIds = currentPage > 1 ? (currentPage - 1) * pageSize : 0;
            List pageList = new ArrayList<>();
            //将当前页的数据放进pageList
            for (int i = 0; i < pageSize && curIds + i < size; i++) {
                pageList.add(list.get(curIds + i));
            }
            page.setCurrent(currentPage).setSize(pageSize).setTotal(list.size()).setRecords(pageList);
        }
        return page;

    }
}