@Override
    public DashboardUserVO findByUserName(final String userName) {
        return DashboardUserVO.buildDashboardUserVO(dashboardUserMapper.selectByUserName(userName));
    }
find dashboard user by username.

@param userName user name
@return {@linkplain DashboardUserVO}
shenyu-admin/src/main/java/org/apache/shenyu/admin/service/impl/DashboardUserServiceImpl.java