web api 上传

using System.Net;

using System.Net.Http;

using System.Web;

using System.Web.Http;

namespace FileUploadTest.Controllers

{

public class FileUploadController : ApiController
{
    public async Task<HttpResponseMessage> Post()
    {
        if (Request.Content.IsMimeMultipartContent())
        {
            var path = HttpContext.Current.Server.MapPath("~/App_Data");
            var provider = new MultipartFormDataStreamProvider(path);
            await Request.Content.ReadAsMultipartAsync(provider).ContinueWith(t =>
            {
                if (t.IsFaulted || t.IsCanceled)
                    throw new HttpResponseException(HttpStatusCode.InternalServerError);
            });
            //Here you should return a meaningful response
            return Request.CreateResponse(HttpStatusCode.OK);
        }
        else
        {
            throw new HttpResponseException(Request.CreateResponse(HttpStatusCode.NotAcceptable, "This request is not properly formatted"));
        }
    }
}

}