screen-api 根据AQI计算污染等级

kaiyu

2021-10-29 113a18ea7368ebc5fbadc211ad3ee1feb743929d

 screen-api/src/main/java/com/moral/api/service/impl/CityAqiServiceImpl.java

@@ -10,6 +10,7 @@
import com.moral.api.service.CityAqiService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.moral.constant.RedisConstants;
import com.moral.util.AQIUtils;
import com.moral.util.DateUtils;

import org.springframework.beans.factory.annotation.Autowired;
@@ -104,6 +105,12 @@
        Map<String,Object> value = (Map<String, Object>) redisTemplate.opsForHash().get(RedisConstants.CITY_AQI,String.valueOf(regionCode));
        if(value==null)
            value = queryCityAqiByRegionCodeFromDB(regionCode);
        //根据AQI计算污染等级
        if(value==null||value.get("aqi")==null)
            return null;
        Integer aqi = Integer.parseInt(value.get("aqi").toString());
        String category = AQIUtils.classOfPollutionByAqi(aqi);
        value.put("category",category);
        return value;
    }

@@ -120,6 +127,8 @@
        wrapper.orderByDesc("time");
        wrapper.last(true,"limit 1");
        CityAqi cityAqi = cityAqiMapper.selectOne(wrapper);
        if(cityAqi==null)
            return null;
        String value = cityAqi.getValue();
        redisTemplate.opsForHash().put(RedisConstants.CITY_AQI,regionCode,value);
        return  JSON.parseObject(value,Map.class);