From 645f627a559585048032d1972f903f9b33918c26 Mon Sep 17 00:00:00 2001
From: jinpengyong <jpy123456>
Date: Mon, 08 Nov 2021 15:12:00 +0800
Subject: [PATCH] 空气质量排名详情接口

---
 screen-api/src/main/java/com/moral/api/service/impl/HistoryDailyServiceImpl.java |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/screen-api/src/main/java/com/moral/api/service/impl/HistoryDailyServiceImpl.java b/screen-api/src/main/java/com/moral/api/service/impl/HistoryDailyServiceImpl.java
index 4895d63..d9a8d2f 100644
--- a/screen-api/src/main/java/com/moral/api/service/impl/HistoryDailyServiceImpl.java
+++ b/screen-api/src/main/java/com/moral/api/service/impl/HistoryDailyServiceImpl.java
@@ -51,9 +51,12 @@
         wrapper.eq("mac",mac);
         wrapper.eq("time",date);
         List<HistoryDaily> historyDailies = historyDailyMapper.selectList(wrapper);
+        if(ObjectUtils.isEmpty(historyDailies))
+            return null;
         return historyDailies.get(0);
     }
 
+
     @Override
     public Map<String, HistoryDaily> getHistoryDailyByMacsAndDate(List<String> mac, Date date) {
         QueryWrapper<HistoryDaily> wrapper = new QueryWrapper<>();

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