public DashboardUserVO transferDTO2VO(final DashboardUserDTO dashboardUserDTO) {
        return Optional.ofNullable(dashboardUserDTO).map(data -> {
            DashboardUserVO dashboardVO = new DashboardUserVO();
            dashboardVO.setId(data.getId());
            dashboardVO.setUserName(data.getUserName());
            dashboardVO.setPassword(data.getPassword());
            dashboardVO.setRole(data.getRole());
            dashboardVO.setEnabled(data.getEnabled());
            return dashboardVO;
        })
        .orElse(null);
    }
conversion data to VO.
@param dashboardUserDTO original data
@return {@linkplain DashboardUserVO}
shenyu-admin/src/main/java/org/apache/shenyu/admin/transfer/DashboardUserTransfer.java