kg/target/classes/mapping/AircraftDao.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.zglc.kg.dao.AircraftDao">

    <!-- 可根据自己的需求，是否要使用 -->
    <resultMap type="com.zglc.kg.entity.AircraftEntity" id="aircraftMap">
        <result property="id" column="id"/>
        <result property="aircraft_type" column="aircraft_type"/>
        <result property="aircraft_describe" column="aircraft_describe"/>
    </resultMap>

    <insert id="addNotExist" parameterType="com.zglc.kg.entity.AircraftEntity">
        INSERT INTO t_aircraft (aircraft_type,aircraft_describe)
        SELECT #{aircraft_type},#{aircraft_describe}
        FROM DUAL WHERE NOT EXISTS (SELECT id FROM t_aircraft WHERE t_aircraft.aircraft_type = #{aircraft_type})
    </insert>

    <select id="findByName" parameterType="String" resultMap="aircraftMap">
        select  * from t_aircraft
        where aircraft_type like #{name}
    </select>
    <select id="listAll" resultMap="aircraftMap">
        select  * from t_aircraft
    </select>

    <select id="findMinId" resultType="Integer">
        select min(id) from t_aircraft
    </select>

    <select id="getLastInsert" resultMap="aircraftMap">
        SELECT * FROM t_aircraft ORDER BY id DESC LIMIT 1
    </select>

</mapper>