Order-server/target/classes/mappers/ext/UserDOMapperExt.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="com.cdu.lys.graduation.repository.dao.ext.UserDOMapperExt" >

    <select id="selectByUsernameAndPassword" resultMap="com.cdu.lys.graduation.repository.dao.UserDOMapper.BaseResultMap">
        select
        <include refid="com.cdu.lys.graduation.repository.dao.UserDOMapper.Base_Column_List" />
        from tb_user
        where username=#{username} and password=#{password}
    </select>
    <select id="selectByUsername" resultMap="com.cdu.lys.graduation.repository.dao.UserDOMapper.BaseResultMap">
        select
        <include refid="com.cdu.lys.graduation.repository.dao.UserDOMapper.Base_Column_List"/>
        from tb_user
        where username=#{username}
    </select>
    <select id="selectByOpenId" resultMap="com.cdu.lys.graduation.repository.dao.UserDOMapper.BaseResultMap">
        select
        <include refid="com.cdu.lys.graduation.repository.dao.UserDOMapper.Base_Column_List" />
        from tb_user
        where open_id=#{openId}
    </select>

</mapper>