c# - FTP over SSL 问题

Question

我在通过 SSL 将文件上传到 ftp 站点到特定目录时遇到问题。为此，我正在使用 System.Net.FtpWebRequest class。上传顺利。但是文件总是掉落到主目录。知道可能做错了什么吗？感谢您的帮助。

    public bool UploadFile(string srcFilePath, string destFilePath = null)
    {
        if (String.IsNullOrWhiteSpace(srcFilePath))
            throw new ArgumentNullException("Source FilePath.");

        if (String.IsNullOrWhiteSpace(destFilePath))
            destFilePath = Path.GetFileName(srcFilePath);

        Uri serverUri = GetUri(destFilePath);

        //// the serverUri should start with the ftp:// scheme.
        if (serverUri.Scheme != Uri.UriSchemeFtp)
            return false;

        // get the object used to communicate with the server.
        FtpWebRequest request = CreateFtpRequest(serverUri, WebRequestMethods.Ftp.UploadFile);

        // read file into byte array
        StreamReader sourceStream = new StreamReader(srcFilePath);
        byte[] fileContents = Encoding.UTF8.GetBytes(sourceStream.ReadToEnd());
        sourceStream.Close();
        request.ContentLength = fileContents.Length;

        // send bytes to server
        Stream requestStream = request.GetRequestStream();
        requestStream.Write(fileContents, 0, fileContents.Length);
        requestStream.Close();

        FtpWebResponse response = (FtpWebResponse)request.GetResponse();
        Debug.WriteLine("Response status: {0} - {1}", response.StatusCode, response.StatusDescription);

        return true;
    }

    private FtpWebRequest CreateFtpRequest(Uri serverUri, string method)
    {
        FtpWebRequest request = (FtpWebRequest)WebRequest.Create(serverUri);
        request.EnableSsl = true;
        request.UsePassive = true;
        request.UseBinary = true;
        request.KeepAlive = true;
        request.Credentials = new NetworkCredential(_userName, _password);
        request.Method = method;
        return request;
    }

    private Uri GetUri(string remoteFilePath)
    {
        return new Uri(_baseUri, remoteFilePath);
    }

Answer 1

好的。终于想通了。这是.NET 4.0 框架问题。使用 .NET 3.5 构建解决方案，效果非常好。

讨厌看到 Microsoft 新发布的 .NET 中的错误，并且浪费大量时间来找出问题。