c# - 无法使用 C# 下载 docx 文件

Question

这是我的代码，我从几个小时以来一直在尝试下载 docx 文件。但没有成功。我可能落后的地方，需要一点提示。

if (File.Exists(sTempPath + sCreateFileName))
            {
                FileInfo file =new FileInfo(sTempPath + sCreateFileName);
                Response.ClearContent();
                // LINE1: Add the file name and attachment, which will force the open/cancel/save dialog to show, to the header
                Response.AddHeader("Content-Disposition", "attachment; filename=" + file.Name);
                // Add the file size into the response header
                Response.AddHeader("Content-Length", file.Length.ToString());
                // Set the ContentType                        
                Response.ContentType = ReturnExtension(file.Extension.ToLower());
                // Write the file into the response (TransmitFile is for ASP.NET 2.0. In ASP.NET 1.1 you have to use WriteFile instead)
                Response.TransmitFile(sTempPath + sCreateFileName);
                // End the response
                HttpContext.Current.ApplicationInstance.CompleteRequest();
            } 

并返回内容类型给出 docx 文件的内容类型：

"application/ms-word"

如果 sTempPath+sCreateFileName 是文件的整个路径。

更新： 我尝试了内容类型：

application/vnd.openxmlformats-officedocument.wordprocessingml.document

这是行不通的。

Answer 1

DOCX 的正确 MIME 类型不是application/mswordbut application/vnd.openxmlformats-officedocument.wordprocessingml.document。

您指定的 MIME 类型用于 DOC 文件。

此外，您可能想要放置 aResponse.Flush()和 aResponse.End()而不是CompleteRequest().

Answer 2

试试这个代码

 string FileName = Path.Combine(Server.MapPath("~/physical folder"), attFileName);
            System.Web.HttpResponse response = System.Web.HttpContext.Current.Response;
            response.ClearContent();
            response.Clear();

     Response.AddHeader("Content-Disposition", string.Format("attachment; filename = \"{0}\"", System.IO.Path.GetFileName(FileName)));
            response.TransmitFile(FileName);
            response.Flush();
            response.End();

Answer 3

我有同样的问题。对我来说它有效：

using (FileStream fileStream = File.OpenRead(filePath))
{
    MemoryStream memStream = new MemoryStream();
    memStream.SetLength(fileStream.Length);
    fileStream.Read(memStream.GetBuffer(), 0, (int)fileStream.Length);

    Response.Clear();
    Response.ContentType = "application/vnd.openxmlformats-officedocument.wordprocessingml.document";
    Response.AddHeader("Content-Disposition", "attachment; filename=myfile.docx");
    Response.BinaryWrite(memStream.ToArray());
    Response.Flush();
    Response.Close();
    Response.End();
}