Mybatis-plus 使用xml进行调用

1.创建xml文件

创建层级目录a.dao.mapper（而不是创建一个目录名字叫a.dao.mapper）
创建文件ContactMapper.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="delta.dao.mapper.ContactMapper">

    <insert >
        insert ignore into delta_contact(en_name, cn_name, email, phone, wechat, create_time, update_time, create_user, update_user, yn)
        values
        <foreach collection="contactList" item="contact" index="index" separator=",">
            (
            #{contact.enName}, #{contact.cnName}, #{contact.email}, #{contact.phone}, #{contact.wechat},
            #{contact.createTime}, #{contact.updateTime}, #{contact.createUser}, #{contact.updateUser}, ${contact.yn}
            )
        </foreach>
        ON DUPLICATE KEY UPDATE
        cn_name=values(cn_name),
        email=values(email),
        phone=values(phone),
        wechat=values(wechat),
        update_time = values(update_time),
        update_user = values(update_user),
        yn = values(yn)
    </insert>
</mapper>

2.开启xml文件识别扫描

mybatis-plus.mapper-locations=classpath*:delta/dao/mapper/*Mapper.xml

3.相关mapper接口中添加方法

public interface ContactMapper extends ExternalMapper<Contact>{
    void batchInsertContact(@Param("contactList") List<Contact> contactList);
}

4.剩下就是方法调用了

contactMapper.batchInsertContact(Lists.newArrayList(contact));