update

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

@@ -284,10 +284,9 @@ public class StudentRegistrationServiceImpl extends BaseServiceImpl<Long, Studen
 				ImResult register = imFeignService.register(new ImUserModel(userId.toString(), sysUser.getUsername(), sysUser.getAvatar()));
 				sysUser.setImToken(register.getToken());
 			} else {
-				if (sysUser.getUserType().contains("STUDENT")) {
-					throw new BizException("用户已存在");
+				if (!sysUser.getUserType().contains("STUDENT")) {
+                    sysUser.setUserType(sysUser.getUserType() + ",STUDENT");
 				}
-				sysUser.setUserType(sysUser.getUserType() + ",STUDENT");
 				sysUser.setPhone(studentRegistration.getParentsPhone());
 				sysUser.setOrganId(studentRegistration.getOrganId());
 				sysUser.setRealName(studentRegistration.getParentsName());