如何在服务器目录中保存导出的 excel

Question

我想在 Excel sheet 中导出数据 table 并保存在 MVC 应用程序的服务器目录中。这是我的代码-

//ManagEmployeeController.cs

public JsonResult ExportToExcel()
        {
            Excel.ExcelUtlity obj = new Excel.ExcelUtlity();
            DataTable dt = ConvertToDataTable(ListEmployee());
            string dir = string.Format("~/Clients/ExportedData/");
            var directoryToSaveFile = Server.MapPath(dir);
            string uniqueNumber = DateTime.Now.ToString("yyyyMMddHHmmss");
            string file = "ContactExportData.xlsx";
            string newFileName = string.Format("{0}{1}", uniqueNumber, file);
            if (!Directory.Exists(directoryToSaveFile))
            {
                Directory.CreateDirectory(directoryToSaveFile);
            }
            string fullFilePath = string.Format("{0}/{1}",dir,newFileName); ;
            //obj.WriteDataTableToExcel(dt, "Person Details", "D:\testPersonExceldata.xlsx", "Details");
            obj.WriteDataTableToExcel(dt, "Person Details", fullFilePath, "Details");
            var result = new { Success = "Success", Messaage = "SuccessMessage" };
            return Json(result,JsonRequestBehavior.AllowGet);
        }

目录已创建，但文件未保存在此处。但是如果我使用注释代码（obj.WriteDataTableToExcel(dt, "Person Details", "D:\testPersonExceldata.xlsx", "Details");），文件将保存在我的本地目录 D.

//ExcelUtility.cs

 public bool WriteDataTableToExcel(System.Data.DataTable dataTable, string worksheetName, string saveAsLocation, string ReporType)
        {
 Microsoft.Office.Interop.Excel.Workbook excelworkBook;
    //
    //
    excelworkBook.SaveAs(saveAsLocation);;
       }

What is missing in my code in order to save Excel to mentioned directory on server?

Answer 1

string fullFilePath = string.Format("{0}/{1}",dir,newFileName);

应该是：

string fullFilePath = string.Format("{0}/{1}",directoryToSaveFile,newFileName);

如何在服务器目录中保存导出的 excel

How to save exported excel at server directory

c#

model-view-controller

excel-interop