sharding-jdbc-4.0.0/src/main/resources/mapper/OrderMapper.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.xin.shardingspherejdbcdemo.mapper.OrderMapper" >


    <select id="selectOrderByid" resultType="java.util.Map">
        SELECT distinct
            b.order_num,
            b.money,
            b.create_time,
            c.tvalue
        FROM
            t_order_ b
            JOIN t_dict c on c.tkey = b.dict_key
        WHERE
            b.user_id=#{userId}  order by b.create_time desc limit #{pageNum},#{pageSize}

    </select>
</mapper>