推送消息只去对应声部的学生

mec-biz/src/main/java/com/ym/mec/biz/service/impl/MusicGroupServiceImpl.java

@@ -1169,7 +1169,7 @@ public class MusicGroupServiceImpl extends BaseServiceImpl<String, MusicGroup> i
 
         String baseURL = sysConfigDao.findConfigValue(SysConfigService.BASE_API_URL);
         String url = baseURL + "/#/smallRegister?musicGroupId=" + musicGroupId;
-        classGroupIds =  highClassGroup.stream().map(HighClassGroupDto::getId).collect(Collectors.joining(","));
+        classGroupIds =  highClassGroup.stream().map(e->e.getId().toString()).collect(Collectors.joining(","));
         if(classGroupIds != null && !classGroupIds.isEmpty()){
             url = baseURL + "/#/smallRegister?musicGroupId=" + musicGroupId+"&classGroupIds="+classGroupIds;
         }