CinemaDemo/src/main/resources/dataImpl/user/AccountMapper.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.example.cinema.data.user.AccountMapper">
    <insert id="createNewAccount" useGeneratedKeys="true" keyProperty="id">
        insert into user(username,password)
        values(#{username},#{password})
    </insert>
    <select id="getAccountByName" resultMap="User">
        select * from user where username=#{username}
    </select>

    <resultMap id="User" type="com.example.cinema.vo.UserVO">
    </resultMap>
</mapper>