src/main/resources/mapper/GridDataDetailMapper.xml
@@ -18,4 +18,15 @@ --> id, data_id, group_id, cell_id, PM25, rank </sql> <!-- 添加批量更新PM25的函数 --> <update id="updatePM25Batch" parameterType="java.util.List"> <foreach collection="list" item="item" separator=";"> UPDATE grid_data_detail SET PM25 = #{item.pm25} WHERE data_id = #{item.dataId} AND group_id = #{item.groupId} AND cell_id = #{item.cellId} </foreach> </update> </mapper>