如果是空机场，则不返回数据

tuoheng-admin/src/main/java/com/tuoheng/admin/service/impl/MissionServiceImpl.java

@@ -233,6 +233,9 @@ public class MissionServiceImpl extends BaseServiceImpl<ThMissionMapper, ThMissi
     }
 
     private Map<Integer, String> getUserNameMap(List<ThMission> records) {
+        if(records.size()==0){
+            return new HashMap<>();
+        }
         Map<Integer,String> userName=new HashMap<>();
         Set<Integer> userId=new HashSet<>();
         records.forEach(thMission -> {