@Override
 public StudentManagerDTO saveStudent(String name, String classId, String schoolId) {
   UserDTO userDTO = new UserDTO();
   userDTO.setRealName(name);
   userDTO.setIdentityId(IdentityIdConstants.STUDENT);
   userDTO.setIdentityDescription("学生");
   userDTO.setSchoolId(schoolId);
   userDTO.setArea(mSchoolMapper.selectByPrimaryKey(schoolId).getArea());
   UserDTO users = userService.saveUser(userDTO);
   MClass mclass = classMapper.selectByPrimaryKey(classId, schoolId);
   StudentDTO studentDTO = new StudentDTO();
   studentDTO.setUserId(users.getUserId());
   studentDTO.setSchoolId(mclass.getSchoolId());
   studentDTO.setSchoolName(mclass.getSchoolName());
   studentDTO.setClassName(mclass.getName());
   studentDTO.setClassId(classId);
   studentDTO.setClassAliasName(mclass.getAliasName());
   studentDTO.setJoinClass(new Date());
   MStudent mStudent = new MStudent();
   BeanUtils.copyProperties(studentDTO, mStudent);
   studentMapper.insert(mStudent);
   MStudentManager studentManager =
       studentMapper.selectStudentByUserId(mStudent.getUserId(), schoolId);
   StudentManagerDTO studentManagerDTO = new StudentManagerDTO();
   BeanUtils.copyProperties(studentManager, studentManagerDTO);
   studentManagerDTO.setClassAliasName(
       ClassNameUtil.getFullName(studentManager.getYears(), studentManager.getClassAliasName()));
   return studentManagerDTO;
 }
 /** 修改学生信息 */
 @Override
 public StudentManagerDTO updateStudentInfo(String userId, String realName, String classId) {
   String schoolId = userService.getSchoolId(userId);
   // 更换用户名称
   usersMapper.updateUserName(userId, realName, schoolId);
   // 更换班级
   MClass mClass = classMapper.selectByPrimaryKey(classId, schoolId);
   studentMapper.updateStudentMessage(userId, mClass);
   // 修改家庭关系表中用户名称
   familyRelationService.updateName(userId, realName);
   MStudentManager studentManager = studentMapper.selectStudentByUserId(userId, schoolId);
   StudentManagerDTO studentManagerDTO = new StudentManagerDTO();
   BeanUtils.copyProperties(studentManager, studentManagerDTO);
   studentManagerDTO.setClassAliasName(
       getGrade(mClass.getYears()) + studentManagerDTO.getClassAliasName());
   // 修改孩子名称,班级信息,删除缓存数据
   deleteRedisOfParent(userId, schoolId);
   cacheService.delete(MessageFormat.format(CacheConstants.KEY_USER, userId));
   return studentManagerDTO;
 }