从C＃编程创建文件到Onedrive？

Question

我想从C＃直接创建一个doc，docx，pptx或excel文件到我的Onedrive帐户。 我试过这个，但它不适合我。任何人都知道我做错了什么？由于

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(); 
} 

编辑： ，我得到的错误是这一个：

“头‘的Content-Type’缺少必要的参数：‘边界’ 说明：发生未处理的异常在执行当前Web请求期间请检查堆栈跟踪以获取有关该错误的更多信息以及源代码的位置 异常详细信息：Microsoft.Live.LiveConnectException：头文件'Content-Type'缺少所需的参数：'边界'。“

Answer 1

最后我从c＃创建一个docx文件。我把解决方案放在这里（方法中的代码不是重构的，因此可以用严格的方法分割）。

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 2

几件事情：

1. 提供给PostAsync字典只填充字段请求主体，并因此增加的Content-Type在那里没有任何效果
2. 文件资源平均将使用需要内容的UploadAsync方法创建。我不相信有一个API可以调用来告诉服务创建一个空白的Office文档。

Answer 3

我还有别的东西。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，出现一条错误消息，它说“发生了什么问题，我们无法打开文件”。该文件存在但无法打开。

我写的代码是这样的。有什么建议么 ？

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 4

我也找到了创建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(); 
     }