diff --git a/jeecg-boot-master/jeecg-module-demo/src/main/java/org/jeecg/modules/demo/annualcompetitionprojectregistration/controller/AnnualCompetitionProjectRegistrationController.java b/jeecg-boot-master/jeecg-module-demo/src/main/java/org/jeecg/modules/demo/annualcompetitionprojectregistration/controller/AnnualCompetitionProjectRegistrationController.java
index ecdf38d9..25d085b3 100644
--- a/jeecg-boot-master/jeecg-module-demo/src/main/java/org/jeecg/modules/demo/annualcompetitionprojectregistration/controller/AnnualCompetitionProjectRegistrationController.java
+++ b/jeecg-boot-master/jeecg-module-demo/src/main/java/org/jeecg/modules/demo/annualcompetitionprojectregistration/controller/AnnualCompetitionProjectRegistrationController.java
@@ -1115,8 +1115,8 @@ public class AnnualCompetitionProjectRegistrationController {
         }
         //参赛院系人数排名(只取前六条)
         if(listcs.size()==0){
-            map.put("csyxbmpm",null);
-            map.put("bmxsxxList",null);
+            map.put("csyxbmpm",new ArrayList<>());
+            map.put("bmxsxxList",new ArrayList<>());
         }else {
             //拿到所有的userid
             List<String> userIds = listcs.stream().map(TeamManagement::getUserId).collect(Collectors.toList());