src/main/resources/mapper/HangzhouAqiMapper.xml
@@ -95,4 +95,17 @@ ORDER BY time </select> <select id="getAvgO3EightHours" resultType="java.util.Map"> select AVG(aqi_json->'$.O3') 'O3_8H', AVG(aqi_json->'$.O3C') 'O3C_8H' FROM hangzhou_aqi WHERE time >= #{start} AND time <![CDATA[<]]> #{end} AND city_code = #{areaCode} </select> </mapper>