c# - MIME多部分流的意外结尾。 MIME分段消息不完整。 Web API和 super 代理

我将文件从客户端上传到网络api时遇到问题。我收到此错误“ MIME分段流意外结束。MIME分段消息不完整。”在控制器中，当我尝试读取多部分内容时。我正在用超级代理构建一个React JS客户端，这是我的请求代码：

 UploadFiles(files: File[]): Promise.IThenable<any> {

    return this.Post("/Payment/files" , {
        data: {
            files: files
        },
        headers: {
            "Content-Type": "multipart/form-data; boundary=gc0p4Jq0M2Yt08jU534c0p",
            "Content-Disposition": "form-data; name=Foo",
        }
    });
}

这是我的控制器代码：

[Route("files")]
[HttpPost]
public async Task<HttpResponseMessage> UploadFiles()
{
        string root = Path.GetTempPath();
        var provider = new MultipartFormDataStreamProvider(root);

        Stream reqStream = Request.Content.ReadAsStreamAsync().Result;
        MemoryStream tempStream = new MemoryStream();
        reqStream.CopyTo(tempStream);

        tempStream.Seek(0, SeekOrigin.End);
        StreamWriter writer = new StreamWriter(tempStream);
        writer.WriteLine();
        writer.Flush();
        tempStream.Position = 0;

        StreamContent streamContent = new StreamContent(tempStream);
        foreach (var header in Request.Content.Headers)
        {
            streamContent.Headers.Add(header.Key, header.Value);

        }
        try
        {
            // Read the form data.
            streamContent.LoadIntoBufferAsync().Wait();

            //This is where it bugs out
            await streamContent.ReadAsMultipartAsync(provider);


            return Request.CreateResponse(HttpStatusCode.OK);
        }
        catch (Exception e)
        {
            return Request.CreateErrorResponse(HttpStatusCode.InternalServerError, e);
        }

}

最佳答案

我认为这里的问题是由于：

headers: {
             "Content-Type": "multipart/form-data; boundary=gc0p4Jq0M2Yt08jU534c0p",
             "Content-Disposition": "form-data; name=Foo",
         }

我有一个类似的问题，并且通过删除标头参数得以解决，我猜是superagent自动添加了它们。