不想dto套dto可以这样写

之前都是要新建个dto文件的，偶然看到别人这样写，简单记录一下

@Data
public class GdtDailyBalanceContent {
    List<GdtDailyBalanceReportAO> list;
    private pageInfoDTO page_info;
    @Data
    public static class pageInfoDTO{
        private  Long page;
        private  Long page_size;
        private  Long total_number;
        private  Long total_page;
    }
}