使用 GData 将任何文件上传到 Google Docs

Question

我正在尝试使用 Google Docs GData API (.NET) 将文件上传到我的文档，但我不断收到错误消息。我找不到任何使用这种方法的例子，所以我什至不确定我是否正确使用它。

DocumentsService docService = new DocumentsService("MyDocsTest");
docService.setUserCredentials("w****", "*****");

DocumentsListQuery docQuery = new DocumentsListQuery();
DocumentsFeed docFeed = docService.Query(docQuery);

foreach (DocumentEntry entry in docFeed.Entries)
{
    Console.WriteLine(entry.Title.Text);
}

Console.ReadKey();
Console.WriteLine();

if (File.Exists(@"testDoc.txt") == false)
{
    File.WriteAllText(@"testDoc.txt", "test");
}

docService.UploadDocument(@"testDoc.txt", null); // Works Fine
docService.UploadFile(@"testDoc.txt", null, @"text/plain", false); // Throws Error

上面的代码会抛出一个GDataRequestException：

Execution of request failed: https://docs.google.com/feeds/default/private/full?convert=false

这有点令人恼火，因为这个 API 可能非常有用。有谁知道我做错了什么？

Answer 1

经过大量的实验和研究，我得到了它的工作。在我的困境中，将把这个留给其他人。我将留下使用简写以供参考。

// Start the service and set credentials
Docs.DocumentsService service = new Docs.DocumentsService("GoogleApiTest");
service.setUserCredentials("username", "password");

// Initialize the DocumentEntry
Docs.DocumentEntry newEntry = new Docs.DocumentEntry();
newEntry.Title = new Client.AtomTextConstruct(Client.AtomTextConstructElementType.Title, "Test Upload"); // Set the title
newEntry.Summary = new Client.AtomTextConstruct(Client.AtomTextConstructElementType.Summary ,"A summary goes here."); // Set the summary
newEntry.Authors.Add(new Client.AtomPerson(Client.AtomPersonType.Author, "A Person")); // Add a main author
newEntry.Contributors.Add(new Client.AtomPerson(Client.AtomPersonType.Contributor, "Another Person")); // Add a contributor
newEntry.MediaSource = new Client.MediaFileSource("testDoc.txt", "text/plain"); // The actual file to be uploading

// Create an authenticator
Client.ClientLoginAuthenticator authenticator = new Client.ClientLoginAuthenticator("GoogleApiTest", Client.ServiceNames.Documents, service.Credentials);

// Setup the uploader
Client.ResumableUpload.ResumableUploader uploader = new Client.ResumableUpload.ResumableUploader(512);
uploader.AsyncOperationProgress += (object sender, Client.AsyncOperationProgressEventArgs e) =>
    {
        Console.WriteLine(e.ProgressPercentage + "%"); // Progress updates
    };
uploader.AsyncOperationCompleted += (object sender, Client.AsyncOperationCompletedEventArgs e) =>
    {
        Console.WriteLine("Upload Complete!"); // Progress Completion Notification
    };

Uri uploadUri = new Uri("https://docs.google.com/feeds/upload/create-session/default/private/full?convert=false"); // "?convert=false" makes the doc be just a file
Client.AtomLink link = new Client.AtomLink(uploadUri.AbsoluteUri);
link.Rel = Client.ResumableUpload.ResumableUploader.CreateMediaRelation;
newEntry.Links.Add(link);

uploader.InsertAsync(authenticator, newEntry, new object()); // Finally upload the bloody thing

Answer 2

您能否检查正在抛出的 GDataRequestException 的 ResponseString 属性以获得详细的错误消息？

在尝试调试此类问题时，使用 Fiddler 等工具捕获您的请求也会有很大帮助。