java流程--若依
control:
service:
mapper:
xml:
1、xml --> mapper --> impl --> service --> controller
2、MySQL查询结果时,必须要对应的domain中指定的类型。如果有参数用#{***}代替。
<select id="selectDeviceTimeData" resultType="com.gw.fireextinguishersystem.domain.GwDeviceData"> SELECT * FROM gw_device_data WHERE DATE_FORMAT(create_time,'%Y-%m-%d') = #{create_time}; </select>