最近七天统计修复

src/main/resources/mapper/TaPersonMapper.xml

@@ -142,7 +142,7 @@ FROM
 
     <select id="selectRecentlyCount" resultType="integer" >
         SELECT
-          SUM(activity_count) as activity_count
+          ifnull(SUM(activity_count), 0) as activity_count
         FROM
         (
             SELECT