音频文件无法通过FTP上传以编程方式工作

Question

I am uploading an .mp3 file via FTP code using C#, the file is uploaded successfully on server but when i bind to a simple audio control or directly view in browser it does not work as expected, whereas when i upload manually on the server it works perfectly.

Code:

        var inputStream = FileUpload1.PostedFile.InputStream;
        byte[] fileBytes = new byte[inputStream.Length];
        inputStream.Read(fileBytes, 0, fileBytes.Length);

Note: When i view the file in Firefox it shows MIME type is not supported.

Thanks!

Answer 1

You're reading the file as a string then using UTF8 encoding to turn it into bytes. If you do that, and the file contains any binary sequence that doesn't code to a valid UTF8 value, parts of the data stream will simply get discarded.

Instead, read it directly as bytes. Don't bother with the StreamReader. Call the Read() method on the underlying stream. Example:

var inputStream = FileUpload1.PostedFile.InputStream
byte[] fileBytes = new byte[inputStream.Length];
inputStream.Read(fileBytes, 0, fileStream.Length);