为什么在 Azure 中托管 MVC 时 MultipartFormDataContent 不起作用？

Question

我在向 MVC 发布表单时遇到问题，但仅当网站托管在 azure 中时。当它本地托管在 IIS 内部或计算模拟器内部时，它可以正常工作。

请求已发布，但表单中的字段未映射到操作的参数。

我需要对 azure 部署做些什么？

MultipartFormDataContent data = new MultipartFormDataContent();
if (!String.IsNullOrEmpty(about))
{
    data.Add(new StringContent(about), "about");
}
data.Add(new StringContent(displayName), "displayName");
data.Add(new StringContent(name), "name");
data.Add(new StringContent(email), "email");
data.Add(new StringContent(phone), "phone");
data.Add(new StringContent(isPublic ? "true": "false"), "isPublic");
data.Add(new StringContent(isPrimary ? "true" : "false"), "isPrimaryProfile");
if (picture != null)
{
    byte[] imageBytes = await picture.GetBtyeFromFile();
    string imageString = Convert.ToBase64String(imageBytes);
    data.Add(new StringContent(imageString), "picture");
}

Uri uri = new Uri(url, UriKind.Absolute);
HttpResponseMessage responseMessage = await client.PostAsync(uri, data);

在服务器端，一切似乎都正确到达。这是我从 InputStream 中取出的主体：

--614f8827-0cfe-48a6-a819-e6e9acdccae0
Content-Type: text/plain; charset=utf-8
Content-Disposition: form-data; name=displayName

display
--614f8827-0cfe-48a6-a819-e6e9acdccae0
Content-Type: text/plain; charset=utf-8
Content-Disposition: form-data; name=name

Test Seller Account
--614f8827-0cfe-48a6-a819-e6e9acdccae0
Content-Type: text/plain; charset=utf-8
Content-Disposition: form-data; name=email

email
--614f8827-0cfe-48a6-a819-e6e9acdccae0
Content-Type: text/plain; charset=utf-8
Content-Disposition: form-data; name=phone

phone
--614f8827-0cfe-48a6-a819-e6e9acdccae0
Content-Type: text/plain; charset=utf-8
Content-Disposition: form-data; name=isPublic

false
--614f8827-0cfe-48a6-a819-e6e9acdccae0
Content-Type: text/plain; charset=utf-8
Content-Disposition: form-data; name=isPrimaryProfile

true
--614f8827-0cfe-48a6-a819-e6e9acdccae0--

并且是标题：

ALL_RAW - Content-Length: 880
Content-Type: multipart/form-data; boundary="614f8827-0cfe-48a6-a819-e6e9acdccae0"
Host: [my server]

Answer 1

见：How to upload files to Asp.Net MVC 4.0 action running in IIS Express with HttpClient class included in .Net 4.0

基本上，您必须引用参数名称：

data.Add(new StringContent(displayName), @"""displayName""");