（一）批量插入

实体类:

import java.io.Serializable;
public class AttachmentTable implements Serializable {private static final long serialVersionUID = 8325882509007088323L;private Integer id;// 附件名称private String name;// 日志IDprivate Integer logid;// 附件URLprivate String url;// getter/setter.......
}

Mapper接口:

import java.util.List;
import model.AttachmentTable;
public interface AttachmentTableMapper {int insert(AttachmentTable record);void insertByBatch(List<AttachmentTable> attachmentTables);
}

Mapper.xml:

<?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="mapper.AttachmentTableMapper"><resultMap id="BaseResultMap" type="model.AttachmentTable"><id column="id" jdbcType="INTEGER" property="id" /><result column="name" jdbcType="VARCHAR" property="name" /><result column="logID" jdbcType="INTEGER" property="logid" /></resultMap><resultMap extends="BaseResultMap" id="ResultMapWithBLOBs" type="model.AttachmentTable"><result column="url" jdbcType="LONGVARCHAR" property="url" /></resultMap><sql id="Base_Column_List">id, name, logID</sql><sql id="Blob_Column_List">url</sql><insert id="insert" parameterType="model.AttachmentTable">insert into attachment_table (id, name, logID,url)values (#{id,jdbcType=INTEGER}, #{name,jdbcType=VARCHAR}, #{logid,jdbcType=INTEGER},#{url,jdbcType=LONGVARCHAR})</insert><insert id="insertByBatch" parameterType="java.util.List">insert into attachment_table (name, logID,url)values<foreach collection="list" item="item" index="index" separator=",">(#{item.name,jdbcType=VARCHAR}, #{item.logid,jdbcType=INTEGER},#{item.url,jdbcType=LONGVARCHAR})</foreach></insert>
</mapper>

【注：标红的地方是需要注意的地方,我第一次做时直接“#{name,jdbcType=VARCHAR}”,没有加前缀“item”,导致报错“找不到name”】

（二）多参数批量删除示例

package com.vrv.linkdood.app.workreport.demomodule.mapper;import org.apache.ibatis.annotations.Param;public interface AttachmentTableMapper {void deleteByLogIdAndNames(@Param("logid") Integer logID, @Param("names") String[] names);
}

<delete id="deleteByLogIdAndNames">delete from attachment_tablewhere logid = #{logid,jdbcType=INTEGER} AND NAME IN<foreach collection="names" item="item" index="index" open="(" close=")" separator=",">#{item}</foreach></delete>