我正在使用Microsoft Graph API，并且我尝试以编程方式从C＃创建oneNote页面。
public async Task<string> GetHttpContentWithToken(string url, string token)
{
var httpClient = new System.Net.Http.HttpClient();
System.Net.Http.HttpResponseMessage response;
try
{
var request = new System.Net.Http.HttpRequestMessage(System.Net.Http.HttpMethod.Post, url);
//Add the token in Authorization header
request.Headers.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", token);
byte[] byteArray = File.ReadAllBytes("C:\\Users\\t-aaalle\\Documents\\Visual Studio 2015\\Projects\\WordAddIn4\\WordAddIn4\\GreetingFile.docx");
using (MemoryStream memoryStream = new MemoryStream())
{
memoryStream.Write(byteArray, 0, byteArray.Length);
using (WordprocessingDocument doc = WordprocessingDocument.Open(memoryStream, true))
{
HtmlConverterSettings settings = new HtmlConverterSettings()
{
PageTitle = "My Page Title"
};
XElement html = HtmlConverter.ConvertToHtml(doc, settings);
var httpContent = new StringContent(html.ToString(), Encoding.UTF8, "multipart/form-data");
string contentWord = httpContent.ToString();
httpClient = new HttpClient();
httpClient.DefaultRequestHeaders
.Accept
.Add(new MediaTypeWithQualityHeaderValue("text/html"));//ACCEPT header
request = new HttpRequestMessage(HttpMethod.Post, "https://graph.microsoft.com/v1.0/me/onenote/sections/1-48839a74-fc3c-452d-a8a8-1eb7d891bc58/pages");
request.Headers.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", token);
request.Content = new StringContent("{\"name\":\"John Doe\",\"age\":33}",Encoding.UTF8,
"application/json");//CONTENT-TYPE header
request.Headers.TryAddWithoutValidation("Content-Type", "multipart/form-data; boundary=----MyPartBoundary198374--");
contentWord = html.ToString();
var createMessage = new HttpRequestMessage(HttpMethod.Post, graphAPIEndpoint)
{
Content = new StringContent(contentWord, System.Text.Encoding.UTF8, "text/html")
};
}
}
response = await httpClient.SendAsync(request);
var content = await response.Content.ReadAsStringAsync();
return content;
}
catch (Exception ex)
{
return ex.ToString();
}
}
我不明白当我运行程序时它意味着什么，它会抛出错误：
Page create requests require the content to be multipart, with a presentation part
感谢Fei Xue已经解决了我的问题，现在我收到了一个新的错误，声明......
Write requests (excluding DELETE) must contain the Content-Type header declaration
更新的代码包括非常有见地的答案是......
public async Task<string> GetHttpContentWithToken(string url, string token)
{
var httpClient = new System.Net.Http.HttpClient();
System.Net.Http.HttpResponseMessage response;
try
{
var request = new System.Net.Http.HttpRequestMessage(System.Net.Http.HttpMethod.Post, url);
//Add the token in Authorization header
request.Headers.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", token);
byte[] byteArray = File.ReadAllBytes("C:\\Users\\t-aaalle\\Documents\\Visual Studio 2015\\Projects\\WordAddIn4\\WordAddIn4\\GreetingFile.docx");
using (MemoryStream memoryStream = new MemoryStream())
{
memoryStream.Write(byteArray, 0, byteArray.Length);
using (WordprocessingDocument doc = WordprocessingDocument.Open(memoryStream, true))
{
HtmlConverterSettings settings = new HtmlConverterSettings()
{
PageTitle = "My Page Title"
};
XElement html = HtmlConverter.ConvertToHtml(doc, settings);
var httpContent = new StringContent(html.ToString(), Encoding.UTF8, "text/html");
string contentWord = httpContent.ToString();
using (var client = new HttpClient())
{
client.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", token);
using (var content2 = new MultipartFormDataContent("MyPartBoundary198374"))
{
var stringContent = new StringContent("<h1>Hello</h1>", Encoding.UTF8, "text/html");
content2.Add(stringContent, "Presentation");
using (
var message = await client.PostAsync("https://graph.microsoft.com/v1.0/me/onenote/sections/1-48839a74-fc3c-452d-a8a8-1eb7d891bc58/pages", content2))
{
Console.WriteLine(message.StatusCode);
}
}
}
contentWord = html.ToString();
}
}
response = await httpClient.SendAsync(request);
var content = await response.Content.ReadAsStringAsync();
return content;
}
catch (Exception ex)
{
return ex.ToString();
}
}
非常感谢你的帮助！
答案 0 :(得分：0)
要创建OneNote页面，我们需要在内容正文中指定演示部分，其中包含名称属性。这是一个使用Fiddler作为参考的例子：
POST: https://graph.microsoft.com/v1.0/me/onenote/sections/{id}/pages
authorization: bearer {token}
Content-type: multipart/form-data; boundary=MyPartBoundary198374
--MyPartBoundary198374
Content-Disposition:form-data; name="Presentation"
Content-Type:text/html
<!DOCTYPE html>
<html>
<head>
<title>A page with <i>rendered</i> images and an <b>attached</b> file</title>
<meta name="created" content="2015-07-22T09:00:00-08:00" />
</head>
<body>
<p>Here's an image uploaded as binary data:</p>
<img src="name:imageBlock1" alt="an image on the page" width="300" />
</body>
</html>
--MyPartBoundary198374
Content-Disposition: form-data; name="imageBlock1"
Content-Type: image/jpeg
<@INCLUDE *C:\me.jpg*@>
--MyPartBoundary198374--
有关此请求的更多详细信息，请参阅this link。
以下是通过C＃创建包含HTML的页面的代码示例：
string token = "";
using (var client = new HttpClient())
{
client.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", token);
using (var content = new MultipartFormDataContent("MyPartBoundary198374"))
{
var stringContent = new StringContent("<h1>Hello</h1>",Encoding.UTF8, "text/html");
content.Add(stringContent, "Presentation");
using (
var message =
await client.PostAsync("https://graph.microsoft.com/v1.0/me/onenote/sections/{id}/pages", content))
{
Console.WriteLine(message.StatusCode);
}
}
}