Java 对多次封装后的list进行动态分页 (精简通用版)

依赖

	com.github.pagehelper
	pagehelper-spring-boot-starter
	1.2.5

PageUtils

import com.github.pagehelper.PageInfo;
import java.util.List;

public class PageUtils {


    
    public static  PageInfo getFormDataPageInfo(Integer currentPage, Integer pageSize, List list) {
        PageInfo objectPageInfo = new PageInfo<>();
        // 总条数
        int size = list.size();
        objectPageInfo.setTotal(size);
        if (currentPage > 0 && pageSize > 0) {
            // 总页数
            objectPageInfo.setPages(size == 0 ? 0 : size % pageSize == 0 ? size / pageSize : size / pageSize + 1);
            // 截取的范围
            int index = (currentPage - 1) * pageSize;
            list = list.subList(index, (size - index > pageSize ? index + pageSize : size));
            // 当前页
            objectPageInfo.setPageNum(currentPage);
            //  每页数量
            objectPageInfo.setPageSize(pageSize);
        }
        // 当前页显示的数据
        objectPageInfo.setList(list);
        return objectPageInfo;
    }
}