135 lines
2.8 KiB
Java
135 lines
2.8 KiB
Java
/**
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* Copyright (c) 2020 fumeiai All rights reserved.
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* <p>
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* <p>
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* <p>
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* 版权所有，侵权必究！
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*/
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package com.lz.common.utils;
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import com.baomidou.mybatisplus.core.metadata.IPage;
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import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
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import java.io.Serializable;
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import java.util.List;
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/**
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* 分页工具类
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*
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* @author Mark sunlightcs@gmail.com
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*/
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public class PageUtils<E> implements Serializable {
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private static final long serialVersionUID = 1L;
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/**
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* 总记录数
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*/
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private int totalCount;
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/**
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* 每页记录数
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*/
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private int pageSize;
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/**
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* 总页数
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*/
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private int totalPage;
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/**
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* 当前页数
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*/
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private int currPage;
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/**
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* 列表数据
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*/
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private List<?> list;
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/**
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* 分页
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* @param list 列表数据
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* @param totalCount 总记录数
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* @param pageSize 每页记录数
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* @param currPage 当前页数
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*/
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public PageUtils(List<?> list, int totalCount, int pageSize, int currPage) {
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this.list = list;
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this.totalCount = totalCount;
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this.pageSize = pageSize;
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this.currPage = currPage;
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this.totalPage = (int) Math.ceil((double) totalCount / pageSize);
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}
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public <E> PageUtils<E> doSelect(ISelect select) {
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IPage page = new Page(this.currPage, this.pageSize);
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list = select.doSelect(page);
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page.setRecords(list);
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return new PageUtils<E>(page);
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}
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/**
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* 开始分页
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*
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* @param pageNum 页码
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* @param pageSize 每页显示数量
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* @param count 是否进行count查询
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*/
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public static <E> PageUtils<E> startPage(int pageNum, int pageSize) {
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IPage<E> page = new Page<E>(pageNum, pageSize);
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return new PageUtils<E>(page);
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}
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/**
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* 分页
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*/
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public PageUtils(IPage<?> page) {
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this.list = page.getRecords();
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this.totalCount = (int) page.getTotal();
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this.pageSize = (int) page.getSize();
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this.currPage = (int) page.getCurrent();
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this.totalPage = (int) page.getPages();
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}
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public int getTotalCount() {
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return totalCount;
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}
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public void setTotalCount(int totalCount) {
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this.totalCount = totalCount;
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}
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public int getPageSize() {
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return pageSize;
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}
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public void setPageSize(int pageSize) {
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this.pageSize = pageSize;
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}
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public int getTotalPage() {
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return totalPage;
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}
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public void setTotalPage(int totalPage) {
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this.totalPage = totalPage;
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}
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public int getCurrPage() {
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return currPage;
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}
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public void setCurrPage(int currPage) {
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this.currPage = currPage;
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}
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public List<?> getList() {
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return list;
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}
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public void setList(List<?> list) {
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this.list = list;
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}
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}
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