mybtais分批insert

这里自己写了个对集合按一批的数量进行分批操作的分页bean，见PagenationUtil如下：

package com.util;
import java.util.List ;

/**
 * @author kyoxue
 * @date   2018年05月31日
 * @param <E> 集合存放的实体类型
 */
public class PagenationUtil<E> {
    /**
     * 分页的集合
     */
    private List<E>    list = null;  
    /**
     * 当前页
     */
    private int        page =0;  
    /**
     * 每页大小
     */
    private int        pageSize =0;
    /**
     * 集合总条数
     */
    private int        totalCount =0;
    /**
     * 总页数
     */
    private int         totalPage =0;
    /**
     * @param list 数据集合
     * @param pageSize 分页大小
     */
    public PagenationUtil(List<E> list,int pageSize){
        this.list = list ;
        this.pageSize = pageSize ;
        this.totalCount = ((null == list || list.size() == 0)?0:list.size());
        this.totalPage = totalCount>0?((totalCount + pageSize - 1) / pageSize):0;
    }
    public List<E> getPageList(){
        if (totalCount == 0) {
            return null;
        }
        if (pageSize == 0) {
            return null;
        }
        int total = getTotalPage();
        int current = getPage();
        if (current > total) {
            return null;
        }
        if (current <= 0) {
            return null;
        }
        int start = pageSize*(current-1);
        if (current == total) {
            int leftLen = totalCount%pageSize;
            if (leftLen>0) {
                return list.subList(start, start+leftLen);
            }
        }
        return list.subList(start, start+pageSize);
    }
    public int getPage() {
        return page;
    }
    public void setPage(int page) {
        this.page = page;
    }
    public int getTotalPage(){
        return  this.totalPage;
    }
}

mybatis分批插入（mapper接口与sql实现示例）：

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="com.dao.XxxMapper" >

<insert id="insertBatch" parameterType="java.util.ArrayList">
        insert into
        t_xx(xx,yy)
        values
      <foreach collection="list" item="item" index="index" separator=","> 
           (#{item.xx},#{item.yy}) 
       </foreach> 
  </insert>
</mapper>

public interface XxxMapper {
    void insertBatch(List<Xx> list);
}

使用自己写的PagenationUtil，对数据集合进行分批执行sql：

PagenationUtil<XX> pageutil = new PagenationUtil<Xx>(集合, 批次数量);
int totalPage = pageutil.getTotalPage();
for (int i = 1; i < totalPage+1; i++) {
    pageutil.setPage(i);
    List<Xx> each = pageutil.getPageList();
    xxMapper.insertBatch(each);
}

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