diff --git a/pjcloud-supermarket/pjcloud-supermarket-biz/src/main/java/com/bsd/pjcloud/supermarket/controller/SmHotelAppController.java b/pjcloud-supermarket/pjcloud-supermarket-biz/src/main/java/com/bsd/pjcloud/supermarket/controller/SmHotelAppController.java
index 1ea3d7693..3560e1234 100644
--- a/pjcloud-supermarket/pjcloud-supermarket-biz/src/main/java/com/bsd/pjcloud/supermarket/controller/SmHotelAppController.java
+++ b/pjcloud-supermarket/pjcloud-supermarket-biz/src/main/java/com/bsd/pjcloud/supermarket/controller/SmHotelAppController.java
@@ -41,6 +41,7 @@ import java.time.format.DateTimeFormatter;
 import java.time.temporal.ChronoUnit;
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.Collection;
 import java.util.Comparator;
 import java.util.HashMap;
 import java.util.HashSet;