下载后文件损坏

我在ASP.NET（VB.NET）中下载后打开文件时收到以下错误 - 远程服务器共享路径中有文件。下载后文件损坏

使用下面的代码是下载一个文件：

Private Sub downloadFile(ByVal file As String) 

    Try 
     Dim requestFile As String = "\\ashleyfurniture\afi-dfs\Arcadia\Vaults\Web\AshleyDirectAttachments\IdeaNetwork\Images" + "\" + file 

     If String.IsNullOrEmpty(requestFile) Then 
      Throw New FileNotFoundException("File to download cannot be null or empty") 
     End If 

     ' Get file name from URI string in C# 

     Dim uri = New Uri(requestFile) 
     Dim filename As String = Path.GetFullPath(uri.OriginalString) 
     Dim fileInfo = New FileInfo((uri.OriginalString)) 

     If Not fileInfo.Exists Then 
      Throw New FileNotFoundException("File to download was not found", uri.OriginalString) 
     End If 


     Response.ContentType = "application/octet-stream" 

     Response.AddHeader("Content-Disposition", "attachment; filename=""" + fileInfo.Name + """") 
     Response.WriteFile(fileInfo.FullName) 
     Response.End() 



     ' ignore exception 
    Catch generatedExceptionName As ThreadAbortException 

    Catch ex As FileNotFoundException 
     Response.StatusCode = CInt(System.Net.HttpStatusCode.NotFound) 
     Response.StatusDescription = ex.Message 
    Catch ex As Exception 
     Response.StatusCode = CInt(System.Net.HttpStatusCode.InternalServerError) 
     Response.StatusDescription = String.Format("Error downloading file: {0}", ex.Message) 
    End Try 



End Sub

来源

2017-10-13 Caroline Dancy

的contentType中如果您在打开损坏的文件十六进制编辑器（甚至是文本编辑器），它是否以一些看起来像网页的文本开始？ –

明确地缺少'Response.Clear（）'在'Response.ContentType'之前，以确保管道不会在这里附加当前处理的页面。我还会在Response.End（）之前添加'Response.Flush（）'。 –

与Wiktor的Zychla同意

尝试删除您回应

Response.ContentType = "application/octet-stream"

来源

2017-10-13 11:55:01 ChiragMM

下载后文件损坏

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