Question

我想从C＃direct创建doc，docx，pptx或excel文件到我的Onedrive帐户。我试过这个，但它不适合我。有谁知道我做错了什么？感谢

public async Task<ActionResult> CreateWordFile()
{
   LiveLoginResult loginStatus = await authClient.InitializeWebSessionAsync(HttpContext);
   if (loginStatus.Status == LiveConnectSessionStatus.Connected)
   {
        var fileData = new Dictionary<string, object>();
        fileData.Add("name", "Document.docx");
        fileData.Add("Content-Type", "multipart/form-data; boundary=A300x");
        fileData.Add("type", "file");

        LiveOperationResult getResult = await connectedClient.PostAsync("me/skydrive/files", fileData);
    }

    return View();
}

EDITED：我得到的错误就是这个：

＆＃34;标题＆＃39;内容类型＆＃39;缺少必需的参数：＆＃39; boundary＆＃39;。描述：执行当前Web请求期间发生未处理的异常。请查看堆栈跟踪以获取有关错误及其源自代码的位置的更多信息。异常详细信息：Microsoft.Live.LiveConnectException：标题＆＃39;内容类型＆＃39;缺少必需的参数：＆＃39; boundary＆＃39;。＆＃34;

Answer 1

有几件事：

提供给PostAsync的字典仅填充请求正文中的字段，因此在其中添加Content-Type没有任何影响
文件资源是指使用UploadAsync方法创建的，这需要内容。我不相信您可以调用API来告诉服务创建一个空白的Office文档。

Answer 2

我还有其他的东西。我创建了一个HttpWebRequest并设置了一些参数。现在它将文件作为docx创建到我的onedrive帐户，但是当我尝试从我的帐户打开文件时，会出现一条错误消息，它说“发生了错误。我们无法打开文件”。该文件存在但无法打开。

我写的代码就是这个。有什么建议吗？

public async Task<ActionResult> CreateWordFile()
{
    string body = "--A300x\r\n"
            + "Content-Disposition: form-data; name=\"file\"; filename=\"csm.docx\"\r\n"
            + "Content-Type: application/octet-stream\r\n"
            + "\r\n"
            + "This is some content\r\n"
            + "\r\n"
            + "--A300x--\r\n";

    byte[] fileBytes = System.Text.Encoding.UTF8.GetBytes(body);
    Stream stream = new MemoryStream(fileBytes);

    LiveLoginResult loginStatus = await authClient.InitializeWebSessionAsync(HttpContext);
    if (loginStatus.Status == LiveConnectSessionStatus.Connected)
    {
        connectedClient = new LiveConnectClient(this.authClient.Session);
        string url = "https://apis.live.net/v5.0/me/skydrive/files?access_token=" + this.authClient.Session.AccessToken;


        HttpWebRequest httpWebRequest2 = (HttpWebRequest)WebRequest.Create(url);
        httpWebRequest2.ContentType = "multipart/form-data; boundary=A300x";
        httpWebRequest2.Method = "POST";
        httpWebRequest2.KeepAlive = true;
        httpWebRequest2.Credentials = System.Net.CredentialCache.DefaultCredentials;
        httpWebRequest2.ContentLength = fileBytes.Length;
        Stream stream2 = httpWebRequest2.GetRequestStream();
        stream2.Write(fileBytes, 0, fileBytes.Length);
        WebResponse webResponse2 = httpWebRequest2.GetResponse();
        }

    return View();
}

Answer 3

最后，我从c＃创建了一个docx文件。我在这里提出了解决方案（方法中的代码没有重构，因此可以用严格的方法拆分。）

public async Task<ActionResult> CreateWordFile()
{
    LiveLoginResult loginStatus = await authClient.InitializeWebSessionAsync(HttpContext);
    if (loginStatus.Status == LiveConnectSessionStatus.Connected)
    {
        connectedClient = new LiveConnectClient(this.authClient.Session);
        string url = "https://apis.live.net/v5.0/me/skydrive/files?access_token=" + this.authClient.Session.AccessToken;

         MemoryStream streamDoc = new MemoryStream();
        DocX doc = DocX.Create(streamDoc);

        string headlineText = "Constitution of the United States";
        string paraOne = ""
            + "We the People of the United States, in Order to form a more perfect Union, "
            + "establish Justice, insure domestic Tranquility, provide for the common defence, "
            + "promote the general Welfare, and secure the Blessings of Liberty to ourselves "
            + "and our Posterity, do ordain and establish this Constitution for the United "
            + "States of America.";

        // A formatting object for our headline:
        var headLineFormat = new Formatting();
        headLineFormat.FontFamily = new System.Drawing.FontFamily("Arial Black");
        headLineFormat.Size = 18D;
        headLineFormat.Position = 12;

        // A formatting object for our normal paragraph text:
        var paraFormat = new Formatting();
        paraFormat.FontFamily = new System.Drawing.FontFamily("Calibri");
        paraFormat.Size = 10D;

        doc.InsertParagraph(headlineText, false, headLineFormat);
        doc.InsertParagraph(paraOne, false, paraFormat);

        doc.Save();

        var docFile = File(streamDoc, "application/octet-stream", "FileName.docx");
        MemoryStream streamFile = new MemoryStream();
        docFile.FileStream.Position = 0;
        docFile.FileStream.CopyTo(streamFile);

        var bites = streamFile.ToArray();
        Stream stream2 = new MemoryStream(bites);

        try
        {
            LiveOperationResult getResult = await connectedClient.UploadAsync("me/skydrive", docFile.FileDownloadName, stream2, OverwriteOption.Overwrite);
        }
        catch(WebException ex)
        {

        }
    }

    return View("~/Views/Auth/EditFile.cshtml");
}

Answer 4

我还找到了创建xlsx文件的答案。

public async Task<ActionResult> CreateExcelFile()
        {
            LiveLoginResult loginStatus = await authClient.InitializeWebSessionAsync(HttpContext);
            if (loginStatus.Status == LiveConnectSessionStatus.Connected)
            {
                connectedClient = new LiveConnectClient(this.authClient.Session);
                string url = "https://apis.live.net/v5.0/me/skydrive/files?access_token=" + this.authClient.Session.AccessToken;

                XSSFWorkbook wb = new XSSFWorkbook();

                // create sheet
                XSSFSheet sh = (XSSFSheet)wb.CreateSheet("Sheet1");
                // 10 rows, 10 columns
                for (int i = 0; i < 100; i++)
                {
                    var r = sh.CreateRow(i);
                    for (int j = 0; j < 100; j++)
                    {
                        r.CreateCell(j);
                    }
                }

                MemoryStream stream = new MemoryStream();
                wb.Write(stream);
                stream.Dispose();

                var arrBites = stream.ToArray();

                MemoryStream newStream = new MemoryStream(arrBites);

                var docFile = File(newStream, "application/octet-stream", "Excel.xlsx");
                MemoryStream streamFile = new MemoryStream();
                docFile.FileStream.Position = 0;
                docFile.FileStream.CopyTo(streamFile);

                var bites = streamFile.ToArray();
                Stream stream2 = new MemoryStream(bites);

                try
                {
                    LiveOperationResult getResult = await connectedClient.UploadAsync("me/skydrive", docFile.FileDownloadName, stream2, OverwriteOption.Overwrite);
                }
                catch (WebException ex)
                {

                }
            }
            return View();
        }

以编程方式从C＃创建文件到Onedrive？

4 个答案: