VIP23/04maven/mybatis/target/classes/TbKeyMapper.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.sf.mapper.TbKeyMapper">

    <resultMap id="tbKeyMap1" type="tbKey">
        <id column="id" property="id"></id>
        <result column="name" property="name"></result>
        <association property="tbLock" javaType="tbLock">
            <id column="id" property="id"></id>
            <result column="name" property="name"></result>
        </association>
    </resultMap>


    <select id="getKeyWithLock" parameterType="integer" resultMap="tbKeyMap1">
        select * from tb_key t1 , tb_lock t2 where t1.lock_id = t2.id and t1.id = #{id}
    </select>


    <resultMap id="tbKeyMap2" type="tbKey">
        <id column="id" property="id"></id>
        <result column="name" property="name"></result>
        <association property="tbLock" javaType="tbLock" column="lock_id" select="com.sf.mapper.TbKeyMapper.getTbLockTbLock">
            <id column="id" property="id"></id>
            <result column="name" property="name"></result>
        </association>
    </resultMap>


    <select id="getKeyWithLock2" parameterType="integer" resultMap="tbKeyMap2">
        select * from tb_key where id = #{id}
    </select>

    <select id="getTbLockTbLock" parameterType="integer" resultType="tbLock">
        select * from tb_lock where id = #{lockId}
    </select>




</mapper>