NPOI return 带有 NancyFx 的 .xls 文件

Question

我正在尝试创建导出功能，将创建的 .xls 文件发送给用户。

我使用 NancyFx 处理请求，使用 NPOI 创建 excel 文件。 无法弄清楚这段代码有什么问题，我得到了 OK 200 响应，但没有返回 content/file returns。

public class ExportService
    {
        private HSSFWorkbook HssfWorkbook { get; set; }

        public ExportService()
        {
            HssfWorkbook = new HSSFWorkbook();
        }

        public Response Export()
        {
            string fileName = "test2.xls";

            var response = new Response();

            response.Headers.Add("Content-Disposition", string.Format("attachment;filename={0}", fileName));

            InitializeWorkbook();
            GenerateData();

            response.Contents(WriteToStream());
            return response.AsAttachment(fileName, "application/vnd.ms-exce");
        }

        private MemoryStream WriteToStream()
        {
            //Write the stream data of workbook to the root directory
            MemoryStream file = new MemoryStream();
            HssfWorkbook.Write(file);
            return file;
        }

        private void GenerateData()
        {
            var sheet1 = HssfWorkbook.CreateSheet("Försäljning");

            sheet1.CreateRow(0).CreateCell(0).SetCellValue("Detta är ett test");
            int x = 1;
            for (int i = 1; i <= 15; i++)
            {
                var row = sheet1.CreateRow(i);
                for (int j = 0; j < 15; j++)
                {
                    row.CreateCell(j).SetCellValue(x++);
                }
            }
        }

        private void InitializeWorkbook()
        {
            ////create a entry of DocumentSummaryInformation
            var documentSummaryInformation = PropertySetFactory.CreateDocumentSummaryInformation();

            documentSummaryInformation.Company = "Test Company";

            HssfWorkbook.DocumentSummaryInformation = documentSummaryInformation;

            ////create a entry of SummaryInformation
            var summaryInformation  = PropertySetFactory.CreateSummaryInformation();
            summaryInformation.Subject = "Test Subject";
            HssfWorkbook.SummaryInformation = summaryInformation;
        }
    }

Answer 1

问题是我的请求来自 AJAX 电话。 需要保存文件，然后将用户重定向到在我的 AJAX 响应中创建的文件。