diff --git a/coolstore-partner-common/src/main/java/com/cool/store/utils/StringUtil.java b/coolstore-partner-common/src/main/java/com/cool/store/utils/StringUtil.java
index 3259ad572..38db9e802 100644
--- a/coolstore-partner-common/src/main/java/com/cool/store/utils/StringUtil.java
+++ b/coolstore-partner-common/src/main/java/com/cool/store/utils/StringUtil.java
@@ -250,8 +250,8 @@ public class StringUtil extends org.apache.commons.lang3.StringUtils {
      */
     public static String generateRoomId(String dateTime) {
         //YYYY-MM-DD HH:mm:ss 转换成yyyyMMddHHmmss
-        String format = DateUtil.format(DateUtil.parse(dateTime, "YYYY-MM-DD HH:mm:ss"), "yyyyMMddHHmmss");
-        String numbers = RandomUtil.randomNumbers(5);
+        String format = DateUtil.format(DateUtil.parse(dateTime, "YYYY-MM-dd HH:mm:ss"), "YYMMDD");
+        String numbers = RandomUtil.randomNumbers(4);
         return format + numbers;
     }
 }