java分页工具类

一、自定义工具类

import com.github.pagehelper.PageInfo; import org.springframework.data.domain.Page; import java.util.List; /** * 分页数据封装类 * Created by macro on 2019/4/19. */ public class CommonPage<T> { /** * 当前页码 */ private Integer pageNum; /** * 每页数量 */ private Integer pageSize; /** * 总页数 */ private Integer totalPage; /** * 总条数 */ private Long total; /** * 分页数据 */ private List<T> list; /** * 将PageHelper分页后的list转为分页信息 */ public static <T> CommonPage<T> restPage(List<T> list) { CommonPage<T> result = new CommonPage<T>(); PageInfo<T> pageInfo = new PageInfo<T>(list); result.setTotalPage(pageInfo.getPages()); result.setPageNum(pageInfo.getPageNum()); result.setPageSize(pageInfo.getPageSize()); result.setTotal(pageInfo.getTotal()); result.setList(pageInfo.getList()); return result; } /** * 将SpringData分页后的list转为分页信息 */ public static <T> CommonPage<T> restPage(Page<T> pageInfo) { CommonPage<T> result = new CommonPage<T>(); result.setTotalPage(pageInfo.getTotalPages()); result.setPageNum(pageInfo.getNumber()); result.setPageSize(pageInfo.getSize()); result.setTotal(pageInfo.getTotalElements()); result.setList(pageInfo.getContent()); return result; } public Integer getPageNum() { return pageNum; } public void setPageNum(Integer pageNum) { this.pageNum = pageNum; } public Integer getPageSize() { return pageSize; } public void setPageSize(Integer pageSize) { this.pageSize = pageSize; } public Integer getTotalPage() { return totalPage; } public void setTotalPage(Integer totalPage) { this.totalPage = totalPage; } public List<T> getList() { return list; } public void setList(List<T> list) { this.list = list; } public Long getTotal() { return total; } public void setTotal(Long total) { this.total = total; } }

二、将查询结果的list放入到该类中，分页完成

CommonPage<OmsOrder> orderPage = CommonPage.restPage(orderList);