webapi aspose导出excel表格

API 通过get请求，注意用到一个[FromUri]特性，使GET接收实体参数

 /// <summary>
        /// 导出
        /// </summary>
        /// <param name="model"></param>
        [HttpGet]
        public void ExportExcel([FromUri]FilterModel model)
        {
           API 直接调用业务层方法

        }

 /// <summary>
        /// 导出数据
        /// </summary>
        /// <param name="filter"></param>
        /// <returns></returns>
        public void ExcelStream(FilterModel filter)
        {
            string filePath= HttpContext.Current.Server.MapPath("~/Export/List.xlsx");
            Workbook workbook = new Workbook(filePath);
            Worksheet worksheet = workbook.Worksheets[0];
            Cells cells = worksheet.Cells;

            PageSource<CaseModel> source = GetCaseList(filter);
          int i = 1;
            foreach (CaseModel model in source.DataSource)
            {
                cells[i, 0].PutValue(i);
                cells[i, 1].PutValue(model.1);
                cells[i, 2].PutValue(model.2);
              
                i++;
            }
            workbook.Save(HttpContext.Current.Response, "列表.xlsx", ContentDisposition.Attachment, new XlsSaveOptions(SaveFormat.Xlsx));
            HttpContext.Current.Response.End();
        }