ASP.NET，C＃，IIS，MIME类型，文件上传条件

我在网站上有一个文件上传网页表单，它只需要接受某些格式（或MIME类型）…

以下代码完美地工作，除了，它不会将.DOCX文件上传到服务器！ 这是唯一不起作用的文件类型…我已经仔细检查了每一行代码，甚至已经进入IIS管理器以确保inheritance了.DOCX MIME类型，它们是……

有没有人知道为什么.DOCX文件不会像其他文件类型一样上传到服务器？

代码片段：

string savePath = "D:\\HIDDEN PATH HERE"; string fileMsg; // Before attempting to perform operations // on the file, verify that the FileUpload // control contains a file. if (FileUpload1.HasFile) { // Check to see that the content type is proper and allowed. // DOC: application/doc, appl/text, application/vnd.msword, application/vnd.ms-word, application/winword, application/word, application/x-msw6, application/x-msword if ( FileUpload1.PostedFile.ContentType == "text/rtf" || FileUpload1.PostedFile.ContentType == "application/doc" || FileUpload1.PostedFile.ContentType == "appl/text" || FileUpload1.PostedFile.ContentType == "application/vnd.msword" || FileUpload1.PostedFile.ContentType == "application/vnd.ms-word" || FileUpload1.PostedFile.ContentType == "application/winword" || FileUpload1.PostedFile.ContentType == "application/word" || FileUpload1.PostedFile.ContentType == "application/msword" || FileUpload1.PostedFile.ContentType == "application/x-msw6" || FileUpload1.PostedFile.ContentType == "application/x-msword" || FileUpload1.PostedFile.ContentType == "application/pdf" || FileUpload1.PostedFile.ContentType == "application/x-pdf" || FileUpload1.PostedFile.ContentType == "application/vnd.openxmlformats-officedocument.wordprocessingml.document" || FileUpload1.PostedFile.ContentType == "application/vnd.openxmlformats-officedocument.wordprocessingml.template" ) { // Get the name of the file to upload. String fileName = FileUpload1.FileName; // Append the name of the file to upload to the path. savePath += strnow + fileName; // Call the SaveAs method to save the // uploaded file to the specified path. // This example does not perform all // the necessary error checking. // If a file with the same name // already exists in the specified path, // the uploaded file overwrites it. FileUpload1.SaveAs(savePath); // Notify the user of the name of the file // was saved under. //fileMsg = "Your file was saved as " + fileName; fileMsg = ""; } else { fileMsg = "Your file was not an accepted format. Please use PDF, RTF or DOC formats."; } 

Answer 1

请参阅此答案 ， 该页面指向此页面 。

DOCX Mime类型：

 application/vnd.openxmlformats-officedocument.wordprocessingml.document 

编辑：对不起，没有在列表中看到它。 如果您想允许DOCX，为什么不检查“.docx”作为扩展名。

 || FileUpload1.PostedFile.FileName.ToLower().Substring(FileUpload1.PostedFile.FileName.Length - 4) == "docx" 

Answer 2

你应该阅读扩展名，而不是检查mime类型。 MIME类型由浏览器设置，在计算机之间可能不同。 这不是他们的目的。

而且，无论你来自哪个背景，如果你有这样的if语句，你至少应该感到一点点羞耻。

 string[] acceptedExtensions = new string[] { ".docx", ".doc", ".txt", ".etc" }; // snip if(acceptedExtensions.Contains(Path.GetExtension(FileUpload1.PostedFile.Filename))) { AcceptFile(FileUpload1.PostedFile); }