From bb77c5e3089fc3e9ccb520625b7798d81c99bfa2 Mon Sep 17 00:00:00 2001
From: 于紫祥_1901 <email@yuzixiang_1910>
Date: Fri, 06 Nov 2020 13:55:15 +0800
Subject: [PATCH] update

---
 src/main/resources/mapper/HistoryMapper.xml |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/src/main/resources/mapper/HistoryMapper.xml b/src/main/resources/mapper/HistoryMapper.xml
index 4ed149c..8af3236 100644
--- a/src/main/resources/mapper/HistoryMapper.xml
+++ b/src/main/resources/mapper/HistoryMapper.xml
@@ -292,5 +292,10 @@
         select `json` from ${table}
 		where  time = #{time} and mac = #{mac}
     </select>
+    <select id="getValueByMacAndTime" resultType="java.lang.String">
+        select `value` from history
+		where  mac = #{mac} and time &gt;= #{time1} and time &lt;=#{time}
+        limit 0,1
+    </select>
 
 </mapper>
\ No newline at end of file

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