|  | @@ -774,7 +774,7 @@ public class RoomServiceImpl implements RoomService {
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				|  |  |              } else if (typeEnum.equals(DeviceTypeEnum.ExamSong)){
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				|  |  |                  long scheduleId = Long.parseLong(roomId.substring(1));
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				|  |  |                  ExamSongDownloadData msg;
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				|  |  | -                String examJson = courseScheduleStudentPaymentDao.getExamJsonByCourseIdAndUserId(scheduleId, authUser.getId());
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				|  |  | +                String examJson = courseScheduleStudentPaymentDao.getExamJsonByCourseIdAndUserId(scheduleId, Integer.parseInt(userId));
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				|  |  |                  if(StringUtils.isEmpty(examJson)){
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				|  |  |                      throw new BizException("学员伴奏信息异常");
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				|  |  |                  }else {
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