update

mec-im/src/main/java/com/ym/service/Impl/RoomServiceImpl.java

@@ -148,10 +148,10 @@ public class RoomServiceImpl implements RoomService {
             } else {
                 roleEnum = RoleEnum.RoleAudience;
             }*/
-            if(teacher == null){
-                roleEnum = RoleEnum.RoleStudent;
-            }else {
+            if(teacher != null && teacher.getId() == courseSchedule.getActualTeacherId()){
                 roleEnum = RoleEnum.RoleTeacher;
+            }else {
+                roleEnum = RoleEnum.RoleStudent;
             }
             saveRoomMember(userId, userName, roomId, roleEnum.getValue(), !isDisableCamera, curTime);
             IMApiResultInfo resultInfo = imHelper.joinGroup(new String[]{userId}, roomId, roomId);