谷歌云端硬盘 API 将文件名上传为"Untitled"

Question

我可以从我的网站将文件上传到谷歌云端硬盘，但我的问题是上传后它会将文件显示为无标题。

如何在上传文件中添加或发布标题。

谢谢

我的代码：

public string UploadFile(string accessToken, byte[] file_data, string mime_type)
    {
        try
        {
            string result = "";
            byte[] buffer = file_data;
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create("https://www.googleapis.com/upload/drive/v2/files?uploadType=media");
            request.Method = "POST";
            request.ContentType = mime_type;
            request.ContentLength = buffer.Length;
            request.Headers.Add(HttpRequestHeader.Authorization, "Bearer " + accessToken);
            var stream = request.GetRequestStream();
            stream.Write(file_data, 0, file_data.Length);
            stream.Close();
            HttpWebResponse webResponse = (HttpWebResponse)request.GetResponse();//Get error here
            if(webResponse.StatusCode == HttpStatusCode.OK)
            {
                Stream responseStream = webResponse.GetResponseStream();
                StreamReader responseStreamReader = new StreamReader(responseStream);
                result = responseStreamReader.ReadToEnd();//parse token from result
                var jLinq = JObject.Parse(result);
                JObject jObject = JObject.Parse(jLinq.ToString());
                webResponse.Close();
                return jObject["alternateLink"].ToString();
            }
            return string.Empty;

        }
        catch
        {
            return string.Empty;
        }
    }

Answer 1

我使用RestSharp将文件上传到Google云端硬盘。

    public static void UploadFile(string accessToken, string parentId)
    {
        var client = new RestClient { BaseUrl = new Uri("https://www.googleapis.com/") };
        var request = new RestRequest(string.Format("/upload/drive/v2/files?uploadType=multipart&access_token={0}", accessToken), Method.POST);
        var bytes = File.ReadAllBytes(@"D:mypdf.pdf");
        var content = new { title = "mypdf.pdf", description = "mypdf.pdf", parents = new[] { new { id = parentId } }, mimeType = "application/pdf" };
        var data = JsonConvert.SerializeObject(content);
        request.AddFile("content", Encoding.UTF8.GetBytes(data), "content", "application/json; charset=utf-8");
        request.AddFile("mypdf.pdf", bytes, "mypdf.pdf", "application/pdf");
        var response = client.Execute(request);
        if (response.StatusCode != HttpStatusCode.OK) throw new Exception("Unable to upload file to google drive");
    }

Answer 2

不使用google.apis dlls并不是那么容易。 您需要先发送元数据，然后再发送文件的其余部分。为此，您需要使用 uploadType=multipart

https://developers.google.com/drive/manage-uploads#multipart

这应该让你开始抱歉，这是一堵代码墙。 我还没有时间为此创建教程。

FileInfo info = new FileInfo(pFilename);
//Createing the MetaData to send
List<string> _postData = new List<string>();
_postData.Add("{");
_postData.Add(""title": "" + info.Name + "",");
_postData.Add(""description": "Uploaded with SendToGoogleDrive",");
_postData.Add(""parents": [{"id":"" + pFolder + ""}],");
_postData.Add(""mimeType": "" + GetMimeType(pFilename).ToString() + """);
_postData.Add("}");
string postData = string.Join(" ", _postData.ToArray());
byte[] MetaDataByteArray = Encoding.UTF8.GetBytes(postData);
// creating the Data For the file
byte[] FileByteArray = System.IO.File.ReadAllBytes(pFilename);
string boundry = "foo_bar_baz";
string url = "https://www.googleapis.com/upload/drive/v2/files?uploadType=multipart" + "&access_token=" + myAutentication.accessToken;
WebRequest request = WebRequest.Create(url);
request.Method = "POST";
request.ContentType = "multipart/related; boundary="" + boundry + """;
// Wrighting Meta Data
string headerJson = string.Format("--{0}rnContent-Type: {1}rnrn",
                boundry,
                "application/json; charset=UTF-8");
string headerFile = string.Format("rn--{0}rnContent-Type: {1}rnrn",
                boundry,
                GetMimeType(pFilename).ToString());
string footer = "rn--" + boundry + "--rn";
int headerLenght = headerJson.Length + headerFile.Length + footer.Length;
request.ContentLength = MetaDataByteArray.Length + FileByteArray.Length + headerLenght;
Stream dataStream = request.GetRequestStream();
dataStream.Write(Encoding.UTF8.GetBytes(headerJson), 0, Encoding.UTF8.GetByteCount(headerJson));   // write the MetaData ContentType
dataStream.Write(MetaDataByteArray, 0, MetaDataByteArray.Length);                                          // write the MetaData

 dataStream.Write(Encoding.UTF8.GetBytes(headerFile), 0, Encoding.UTF8.GetByteCount(headerFile));   // write the File ContentType
        dataStream.Write(FileByteArray, 0, FileByteArray.Length);                                  // write the file
        // Add the end of the request.  Start with a newline
        dataStream.Write(Encoding.UTF8.GetBytes(footer), 0, Encoding.UTF8.GetByteCount(footer));
        dataStream.Close();
        try
        {
            WebResponse response = request.GetResponse();
            // Get the stream containing content returned by the server.
            dataStream = response.GetResponseStream();
            // Open the stream using a StreamReader for easy access.
            StreamReader reader = new StreamReader(dataStream);
            // Read the content.
            string responseFromServer = reader.ReadToEnd();
            // Display the content.
            //Console.WriteLine(responseFromServer);
            // Clean up the streams.
            reader.Close();
            dataStream.Close();
            response.Close();
}
        catch (Exception ex)
        {
            return "Exception uploading file: uploading file." + ex.Message;
        }

如果您需要评论以外的任何解释，请告诉我。我努力让这个工作了一个月。 它几乎和可恢复上传一样糟糕。

Answer 3

我正在寻找给定问题的解决方案，之前我把 uploadType=resumable 导致给定问题，当我使用 uploadType=multipart 问题时，问题得到解决......