Microsoft Excel無法訪問ASP.net項目中的文件

Question

我創建了每行讀取excel文件的Web應用程序，當我從本地主機運行它時，它完美地工作。 但是，當我將其部署到網絡服務器[贏得7 64比特]，它產生誤差這樣的：

Microsoft Excel cannot access the file 'C:\TestReadExcel\testdata.xlsx'. There are several possible reasons: 

• The file name or path does not exist. 
• The file is being used by another program. 
• The workbook you are trying to save has the same name as a currently open workbook. 

從該代碼來此錯誤（我用的Microsoft.Office.Interop.Excel）：

Line 195:  Dim workbook = xlApplication.Workbooks.Open(fileName) 
.. 
.. 

我已經嘗試了各種辦法：

1. add folder **desktop** C:\Windows\System32\config\systemprofile\ and in C:\Windows\SysWOW64\config\systemprofile -it not working 
2. add security account for network services and iis_iusrs in DCOM config - microsoft excel application (allow all) - it not working 
3. already restart my web server after i configured step 1-2 , and still not working 
4. already test to add security account full control in folder C:\TestReadExcel\ , and still not working 

還有什麼，我需要做的來解決這個問題？ 還是有什麼比使用interop excel的方式嗎？

需要你的幫助謝謝。

Answer 1

使用Server.Mappath來獲取文件路徑。並確保IIS_User具有讀取放置Excel文件的文件夾的權限。