springboot分页

原文地址：http://www.cnblogs.com/1315925303zxz/p/7364552.html

1 pom文件

     com.github.pagehelper
     pagehelper
      4.1.6
 

2这次直接是在项目的入口类application.java中直接设置PageHelper插件即可

//配置mybatis的分页插件pageHelper
    @Bean
    public PageHelper pageHelper(){
        PageHelper pageHelper = new PageHelper();
        Properties properties = new Properties();
        properties.setProperty("offsetAsPageNum","true");
        properties.setProperty("rowBoundsWithCount","true");
        properties.setProperty("reasonable","true");
        properties.setProperty("dialect","mysql");    //配置mysql数据库的方言
        pageHelper.setProperties(properties);
        return pageHelper;
    }

3同理，使用插件实现分页功能，方式还是一样，只需将当前查询的页数和每页显示的条数穿进去即可，直接源码这是需要用到的分页实体，各位可以直接享用。

package com.zxz.utils;

/**
 * 分页bean
 */

import java.util.List;

public class PageBean {
    // 当前页
    private Integer currentPage = 1;
    // 每页显示的总条数
    private Integer pageSize = 10;
    // 总条数
    private Integer totalNum;
    // 是否有下一页
    private Integer isMore;
    // 总页数
    private Integer totalPage;
    // 开始索引
    private Integer startIndex;
    // 分页结果
    private List items;

    public PageBean() {
        super();
    }

    public PageBean(Integer currentPage, Integer pageSize, Integer totalNum) {
        super();
        this.currentPage = currentPage;
        this.pageSize = pageSize;
        this.totalNum = totalNum;
        this.totalPage = (this.totalNum+this.pageSize-1)/this.pageSize;
        this.startIndex = (this.currentPage-1)*this.pageSize;
        this.isMore = this.currentPage >= this.totalPage?0:1;
    }

    public Integer getCurrentPage() {
        return currentPage;
    }

    public void setCurrentPage(Integer currentPage) {
        this.currentPage = currentPage;
    }

    public Integer getPageSize() {
        return pageSize;
    }

    public void setPageSize(Integer pageSize) {
        this.pageSize = pageSize;
    }

    public Integer getTotalNum() {
        return totalNum;
    }

    public void setTotalNum(Integer totalNum) {
        this.totalNum = totalNum;
    }

    public Integer getIsMore() {
        return isMore;
    }

    public void setIsMore(Integer isMore) {
        this.isMore = isMore;
    }

    public Integer getTotalPage() {
        return totalPage;
    }

    public void setTotalPage(Integer totalPage) {
        this.totalPage = totalPage;
    }

    public Integer getStartIndex() {
        return startIndex;
    }

    public void setStartIndex(Integer startIndex) {
        this.startIndex = startIndex;
    }

    public List getItems() {
        return items;
    }

    public void setItems(List items) {
        this.items = items;
    }
}

@Override
    public List findItemByPage(int currentPage,int pageSize) {
        //设置分页信息，分别是当前页数和每页显示的总记录数【记住：必须在mapper接口中的方法执行之前设置该分页信息】
        PageHelper.startPage(currentPage, pageSize);
        
        List allItems = itemMapper.findAll();        //全部商品
        int countNums = itemMapper.countItem();            //总记录数
        PageBean pageData = new PageBean<>(currentPage, pageSize, countNums);
        pageData.setItems(allItems);
        return pageData.getItems();
    }