Stream参数始终为空

Question

我正在从客户端（ASP.NET MVC）向Webapi服务发送发布请求，但是，Webapi服务控制器需要一个Stream参数，该参数始终为null。

来自ASP.NET MVC应用的请求：

using(var client = new HttpClient())
{
    Token token = GetToken();
    client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue(token.TokenType, token.AccessToken);
    var content = new StreamContent(stream);
    content.Headers.ContentType = new MediaTypeHeaderValue("application/json");
    content.Headers.ContentDisposition = new ContentDispositionHeaderValue("form-data") { Name = "keliaStream" };
    var res = client.PostAsync(GetSdcUri(), content).Result;
}

WebApi控制器：

// POST: api/Publication
[HttpPost]
[Route("whatever-route")]
[RequireHttps]
public System.Web.Mvc.ActionResult GenerateSDCFromTBox([FromBody]Stream keliaStream)
{
    // whatever
}

[keliaStream始终为空，我缺少什么？

Answer 1

感谢您的评论，我已经找到了解决方案。万一有人遇到同样的问题，这是我的解决方案：

客户端（ASP.NET MVC）：

using(var client = new HttpClient())
{
    Token token = GetToken();
    client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue(token.TokenType, token.AccessToken);
    var content = new StreamContent(stream);
    content.Headers.ContentType = new MediaTypeHeaderValue("application/json");
    var res = client.PostAsync(GetSdcUri(), content).Result;
}

SERVEUR（WebApi）：

public System.Web.Mvc.ActionResult GenerateSDCFromTBox()
{
    Stream stream = Request.Content.ReadAsStreamAsync().Result;
    // return do what ever with stream
}