jinpengyong
2020-12-16 0d667ba939460c3dc6cdb0c974841bd0be5dc432
src/main/java/com/moral/service/impl/HistoryServiceImpl.java
@@ -407,7 +407,8 @@
        Map<String, Object> map = historyMapper.getAVGValueByMacAndTimeslot(mac, startTime, endTime, timeUnits);
        Map<String, Object> returnMap = new HashMap<>();
        if (ObjectUtils.isEmpty(map) || map.isEmpty()) {
            returnMap.put("AQI", "N/V");
             returnMap.put("AQI", "N/V");
             return returnMap;
        } else {
            Map<String, Double> AQIMap = new HashMap<>();
            for (Map.Entry<String, Object> entry : map.entrySet()) {