XML

<resultMap id="getFilmInfoMap" type="com.stylefeng.guns.api.cinema.vo.FilmInfoVO">
    <result column="film_id" property="filmId"></result>
    <result column="film_name" property="filmName"></result>
    <result column="film_length" property="filmLength"></result>
    <result column="film_language" property="filmType"></result>
    <result column="film_cats" property="filmCats"></result>
    <result column="actors" property="actors"></result>
    <result column="img_address" property="imgAddress"></result>
    <collection property="filmFields" ofType="com.stylefeng.guns.api.cinema.vo.FilmFieldVO">
        <result column="UUID" property="fieldId"></result>
        <result column="begin_time" property="beginTime"></result>
        <result column="end_time" property="endTime"></result>
        <result column="film_language" property="language"></result>
        <result column="hall_name" property="hallName"></result>
        <result column="price" property="price"></result>
    </collection>
</resultMap>

<select id="getFilmInfos" parameterType="java.lang.Integer" resultMap="getFilmInfoMap">
    SELECT
      info.film_id,
      info.`film_name`,
      info.`film_length`,
      info.`film_language`,
      info.`film_cats`,
      info.`actors`,
      info.`img_address`,
      f.`UUID`,
      f.`begin_time`,
      f.`end_time`,
      f.`hall_name`,
      f.`price`
    FROM
      mooc_hall_film_info_t info
    LEFT JOIN
      mooc_field_t f
    ON f.`film_id` = info.`film_id`
    AND f.`cinema_id` = ${cinemaId}
</select>

Dao

List<FilmInfoVO> getFilmInfos(@Param("cinemaId") int cinemaId);

VO

@Data
public class FilmInfoVO implements Serializable {

    private String filmId;
    private String filmName;
    private String filmLength;
    private String filmType;
    private String filmCats;
    private String actors;
    private String imgAddress;
    private List<FilmFieldVO> filmFields;

}

@Data
public class FilmFieldVO implements Serializable {

    private String fieldId;
    private String beginTime;
    private String endTime;
    private String language;
    private String hallName;
    private String price;

}