ASP.NET MVC编程入门--Excel上传

        #region EXCEL上传
        /// <summary>
        /// EXCEL上传
        /// </summary>
        /// <param name="fileData"></param>
        /// <returns></returns>
        [AcceptVerbs(HttpVerbs.Post)]
        public JsonResult ExcelUpload(HttpPostedFileBase fileData)
        {
            json.HttpResult result = new json.HttpResult();
            if (fileData == null)
            {
                result.state = json.ResultType.error.ToString();
                result.message = "";
                return Json(new { result }, JsonRequestBehavior.AllowGet);
            }
            try
            {
                // 文件上传后的保存路径
                string filePath = Request.ApplicationPath + "UpLoad/Excel/";
                if (CreateFilePath(filePath))
                {
                    string fileName = Path.GetFileName(fileData.FileName);// 原始文件名称
                    string fileExtension = Path.GetExtension(fileName); // 文件扩展名
                    string saveName = Guid.NewGuid().ToString("N") + fileExtension; // 保存文件名称
                    string excelPath = filePath + saveName;
                    fileData.SaveAs(filePath + saveName);
                    DataTable dt = GetExcelData(excelPath);

                    bool re = bll.ProductManager.AddDataTable(dt);
                    common.SysLog.InsertListLog(common.SysLog.PRODUCT_MODULE, common.SysLog.OPERATE_INSERT_LIST, dt.Rows.Count);

                    result.state = json.ResultType.success.ToString();
                    result.message = json.ResultMessage.SUCCESS;
                }            
            }
            catch (Exception ex)
            {
                result.state = json.ResultType.error.ToString();
                result.message = ex.Message;
            }
            return Json(new { result }, JsonRequestBehavior.AllowGet);
        }
        #endregion

        #region 获取Excel DataTable
        /// <summary>
        /// 获取Excel DataTable
        /// </summary>
        /// <param name="filePath"></param>
        /// <returns></returns>
        private DataTable GetExcelData(string filePath)
        {
            DataTable dt = new DataTable();
            IWorkbook workbook;
            string fileExt = Path.GetExtension(filePath).ToLower();

            using (FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read))
            {
                //XSSFWorkbook 适用XLSX格式，HSSFWorkbook 适用XLS格式
                if (fileExt == ".xlsx")
                {
                    workbook = new XSSFWorkbook(fs);
                }
                else if (fileExt == ".xls")
                {
                    workbook = new HSSFWorkbook(fs);
                }
                else
                {
                    return null;
                }
            }

            ISheet sheet = workbook.GetSheetAt(0);
            IRow headerRow = sheet.GetRow(sheet.FirstRowNum);//第一行为标题行

　　　　　　　/***************************************/return dt;
        }
        #endregion