mybatis中useGeneratedKeys和keyProperty的使用

领域模型主键属性是shopId，使用JDBC的getGenereatedKeys方法获取主键并赋值到keyProperty设置的领域模型shopId属性中，
配置参考如下：
<insert id="insert" parameterType="com.XXX.domain.ShopBaseInfo" useGeneratedKeys="true" keyProperty="shopId">
    INSERT INTO
    <include refid="TABLE"/>
    (
            shop_name,
            shop_keeper_id,
            shop_desc,
            shop_template_id,
            shop_logo_url,
            shop_backgroud_pic,
            shop_type,
            sync_status,
            xx_shop_id,
            platform_id,
            created,
            modified,
            yn
        )VALUES(
            #{shopName},
            #{shopKeeperId},
            #{shopDesc},
            #{shopTemplateId},
            #{shopLogoUrl},
            #{shopBackgroudPic},
            #{shopType},
            #{syncStatus},
            #{xxShopId},
            #{platformId},
            #{created},
            #{modified},
            #{yn}
        )
</insert>

java代码Demo测试类：
//测试类
public class TestInsert{

@Resource
private ShopBaseInfoMapper shopBaseInfoMapper;

public Long insert(@NotNull ShopBaseInfo entity) {

      ShopBaseInfo shop = new ShopBaseInfo();
        shop.setPlatformId(platformId);
        shop.setShopType(1);//todo 根据用户信息--------设定店铺类型
        if(StringUtils.isBlank(user.getJcbNickName())){
            shop.setShopName(user.getJcbMobile()+"的店");
        }else{
            shop.setShopName(user.getJcbNickName()+"的店");
        }
        shop.setShopLogoUrl(user.getJcbHeader());
        shop.setShopKeeperId(user.getId());
        shop.setShopDesc("掌柜比较懒，。。。。。。。。。。。");
        shop.setShopTemplateId(10001);
        shop.setCreated(new Date());
        shop.setModified(new Date());
        shop.setYn(1);
        shopBaseInfoMapper.setUTF8MB4();
        shopBaseInfoMapper.insert(shop);
        log.info("platformId is {},userid is {},shopId is {}",platformId,userId,shop.getShopId());
       //todo 调用insert方法后，会怎么给shop对象的shopId属性赋值，所以方法直接返回shopId就可以。
        return shop.getShopId();
　　}
}

//Mapper类

public interface ShopBaseInfoMapper{
    /**
    * 新增
    * @param entity
    * @return
    */
    Integer insert(ShopBaseInfo entity);
}