修改学生添加程序，解决后续发流程报错问题

src/main/java/com/xjrsoft/module/student/service/impl/StudentManagerServiceImpl.java

@@ -112,7 +112,7 @@ public class StudentManagerServiceImpl extends MPJBaseServiceImpl<BaseStudentUse
     public Boolean add(AddBaseStudentUserDto dto) {
 
         BaseStudentUser baseStudentUser = BeanUtil.toBean(dto, BaseStudentUser.class);
-
+        baseStudentUser.setCode(dto.getUserName());
         // 用户身份证后6位作为默认密码
         baseStudentUser.setPassword(BCrypt.hashpw(propertiesConfig.getDefaultPassword(), BCrypt.gensalt()));
         studentbaseManagerBaseStudentUserMapper.insert(baseStudentUser);