1

PostFile を使用して画像をアップロードしようとしています。簡単な例として、次の DTO があります。

[Route("/Pictures/{Id}", "GET, PUT, DELETE")]
public class Picture
{
    public int Id { get; set; }
}

public class PictureResponse : IHasResponseStatus
{
    public int Id { get; set; }

    #region Implementation of IHasResponseStatus

    public ResponseStatus ResponseStatus { get; set; }

    #endregion
}

私のGETはうまくいきます：

public override object OnGet(Picture request)
{
    var memoryStream = new MemoryStream();
    PictureRepository.Get(request.Id).Save(memoryStream, ImageFormat.Png);
    return new HttpResult(memoryStream, "image/png");
}

しかし、私の PostFile は爆発します:

var imagePathInfo = new FileInfo(@"C:\Users\Mark\Downloads\avatars\symang.jpg");
var serviceClient = new JsonServiceClient("http://localhost:52712/api")
serviceClient.PostFile<PictureResponse>("/Pictures/{0}".Fmt(id), imagePathInfo, MimeTypes.GetMimeType(imagePathInfo.Name));

エラーとスタック トレースは次のとおりです。

Server Error in '/' Application.

An existing connection was forcibly closed by the remote host

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 

Exception Details: System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host

Source Error: 


Line 32:             var imagePathInfo = new FileInfo(@"C:\Users\Mark\Downloads\avatars\symang.jpg");
Line 33:             var serviceClient = new JsonServiceClient("http://localhost:52712/api");
Line 34:             serviceClient.PostFile<PictureResponse>("/Pictures/{0}".Fmt(id), imagePathInfo, MimeTypes.GetMimeType(imagePathInfo.Name));
Line 35:             RedirectToAction("Index");
Line 36:             return View();

Source File: C:\Users\Mark\Documents\Visual Studio 2010\Projects\Sandbox\UploadFileAttachments\UploadFileAttachments\Controllers\HomeController.cs    Line: 34 

Stack Trace: 


[SocketException (0x2746): An existing connection was forcibly closed by the remote host]
System.Net.Sockets.Socket.Receive(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags) +6210712
System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size) +134

[IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host.]
System.Net.ConnectStream.Read(Byte[] buffer, Int32 offset, Int32 size) +318
System.Net.HttpWebRequest.MakeMemoryStream(Stream stream) +221

[WebException: The underlying connection was closed: An unexpected error occurred on a receive.]
System.Net.HttpWebRequest.GetResponse() +6115603
ServiceStack.ServiceClient.Web.ServiceClientBase.PostFile(String relativeOrAbsoluteUrl, Stream fileToUpload, String fileName, String mimeType) in C:\src\ServiceStack\src\ServiceStack.Common\ServiceClient.Web\ServiceClientBase.cs:815
ServiceStack.ServiceClient.Web.ServiceClientBase.PostFile(String relativeOrAbsoluteUrl, FileInfo fileToUpload, String mimeType) in C:\src\ServiceStack\src\ServiceStack.Common\ServiceClient.Web\ServiceClientBase.cs:790
UploadFileAttachments.Controllers.HomeController.ChangePicture(Int32 id) in C:\Users\Mark\Documents\Visual Studio 2010\Projects\Sandbox\UploadFileAttachments\UploadFileAttachments\Controllers\HomeController.cs:34
lambda_method(Closure , ControllerBase , Object[] ) +150
System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters) +17
System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) +208
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +27
System.Web.Mvc.<>c__DisplayClass15.<InvokeActionMethodWithFilters>b__12() +55
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) +263
System.Web.Mvc.<>c__DisplayClass17.<InvokeActionMethodWithFilters>b__14() +19
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodWithFilters(ControllerContext controllerContext, IList`1 filters, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +191
System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) +343
System.Web.Mvc.Controller.ExecuteCore() +116
System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext) +97
System.Web.Mvc.ControllerBase.System.Web.Mvc.IController.Execute(RequestContext requestContext) +10
System.Web.Mvc.<>c__DisplayClassb.<BeginProcessRequest>b__5() +37
System.Web.Mvc.Async.<>c__DisplayClass1.<MakeVoidDelegate>b__0() +21
System.Web.Mvc.Async.<>c__DisplayClass8`1.<BeginSynchronous>b__7(IAsyncResult _) +12
System.Web.Mvc.Async.WrappedAsyncResult`1.End() +62
System.Web.Mvc.<>c__DisplayClasse.<EndProcessRequest>b__d() +50
System.Web.Mvc.SecurityUtil.<GetCallInAppTrustThunk>b__0(Action f) +7
System.Web.Mvc.SecurityUtil.ProcessInApplicationTrust(Action action) +22
System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +60
System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +9
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +8970061
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +184

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.272

PostFile の使い方を誤解していると思います。ちなみに、自分のサービスで OnPost メソッドを実行したことはありません。洞察をありがとう。

4

1 に答える 1

0

PostFileは HTTP を行いますPOST。
しかし、あなたのサービスは のみを許可しGET、コード例の最初の行のルートのために:PUTDELETE

[Route("/Pictures/{Id}", "GET, PUT, DELETE")]

解決：

ルートに次のいずれかを含めPOSTます。

[Route("/Pictures/{Id}", "GET, PUT, DELETE, POST")]

...または単に HTTP 動詞を省略します。

[Route("/Pictures/{Id}")]
于 2012-10-26T12:19:03.127 に答える