要件に従って、Iphone から画像とファイル名を投稿するには、残りの WCF サービスが必要です。Rest サービスを作成しました。しかし、WCF サービスを実行すると、次のエラーが発生します。
An ExceptionDetail, likely created by IncludeExceptionDetailInFaults=true, whose value is:
System.InvalidOperationException: An exception was thrown in a call to a WSDL export extension: System.ServiceModel.Description.DataContractSerializerOperationBehavior
contract: http://tempuri.org/:IService1 ----> System.InvalidOperationException: For request in operation PostImage to be a stream the operation must have a single parameter whose type is Stream.
at System.ServiceModel.Dispatcher.StreamFormatter.ValidateAndGetStreamPart(MessageDescription messageDescription, Boolean isRequest, String operationName)
at System.ServiceModel.Dispatcher.StreamFormatter.Create(MessageDescription messageDescription, String operationName, Boolean isRequest)
at System.ServiceModel.Description.MessageContractExporter.ExportMessage(Int32 messageIndex, Object state)
at System.ServiceModel.Description.MessageContractExporter.ExportMessageContract()
at System.ServiceModel.Description.DataContractSerializerOperationBehavior.System.ServiceModel.Description.IWsdlExportExtension.ExportContract(WsdlExporter exporter, WsdlContractConversionContext contractContext)
at System.ServiceModel.Description.WsdlExporter.CallExtension(WsdlContractConversionContext contractContext, IWsdlExportExtension extension)
--- End of inner ExceptionDetail stack trace ---
at System.ServiceModel.Description.WsdlExporter.CallExtension(WsdlContractConversionContext contractContext, IWsdlExportExtension extension)
at System.ServiceModel.Description.WsdlExporter.CallExportContract(WsdlContractConversionContext contractContext)
at System.ServiceModel.Description.WsdlExporter.ExportContract(ContractDescription contract)
at System.ServiceModel.Description.WsdlExporter.ExportEndpoint(ServiceEndpoint endpoint, XmlQualifiedName wsdlServiceQName, BindingParameterCollection bindingParameters)
at System.ServiceModel.Description.WsdlExporter.ExportEndpoints(IEnumerable`1 endpoints, XmlQualifiedName wsdlServiceQName, BindingParameterCollection bindingParameters)
at System.ServiceModel.Description.ServiceMetadataBehavior.MetadataExtensionInitializer.GenerateMetadata()
at System.ServiceModel.Description.ServiceMetadataExtension.EnsureInitialized()
at System.ServiceModel.Description.ServiceMetadataExtension.HttpGetImpl.InitializationData.InitializeFrom(ServiceMetadataExtension extension)
at System.ServiceModel.Description.ServiceMetadataExtension.HttpGetImpl.GetInitData()
at System.ServiceModel.Description.ServiceMetadataExtension.HttpGetImpl.TryHandleDocumentationRequest(Message httpGetRequest, String[] queries, Message& replyMessage)
at System.ServiceModel.Description.ServiceMetadataExtension.HttpGetImpl.ProcessHttpRequest(Message httpGetRequest)
at System.ServiceModel.Description.ServiceMetadataExtension.HttpGetImpl.Get(Message message)
at SyncInvokeGet(Object , Object[] , Object[] )
at System.ServiceModel.Dispatcher.SyncMethodInvoker.Invoke(Object instance, Object[] inputs, Object[]& outputs)
at System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc)
at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage5(MessageRpc& rpc)
at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage41(MessageRpc& rpc)
at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage4(MessageRpc& rpc)
at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage31(MessageRpc& rpc)
at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage3(MessageRpc& rpc)
at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage2(MessageRpc& rpc)
at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage11(MessageRpc& rpc)
at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage1(MessageRpc& rpc)
at System.ServiceModel.Dispatcher.MessageRpc.Process(Boolean isOperationContextSet)
次のコードを使用しました
[OperationContract]
[WebInvoke(BodyStyle = WebMessageBodyStyle.Bare,
UriTemplate = "PostImage/{filename}",
Method = "POST")]
string PostImage(string filename, Stream obj);
public string PostImage(string filename, Stream obj)
{
}
そして、次の web.config を使用して
<system.serviceModel>
<bindings>
<webHttpBinding>
<binding name="webHttpBindingStreamed" crossDomainScriptAccessEnabled="true" transferMode="Streamed" maxBufferSize="2147483647" maxReceivedMessageSize="2147483647" openTimeout="00:25:00" closeTimeout="00:25:00" sendTimeout="00:25:00" receiveTimeout="00:25:00"></binding>
</webHttpBinding>
</bindings>
<services>
<service name="Test.Service1" behaviorConfiguration="ServiceBehaviour">
<endpoint address=""
binding="webHttpBinding"
contract="Test.IService1"
behaviorConfiguration="webHttp"
bindingConfiguration="webHttpBindingStreamed"/>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="ServiceBehaviour">
<!-- To avoid disclosing metadata information, set the values below to false before deployment -->
<serviceMetadata httpGetEnabled="true" />
<!-- To receive exception details in faults for debugging purposes, set the value below to true. Set to false before deployment to avoid disclosing exception information -->
<serviceDebug includeExceptionDetailInFaults="true" />
</behavior>
</serviceBehaviors>
<endpointBehaviors>
<behavior name="webHttp" >
<webHttp automaticFormatSelectionEnabled="true" defaultOutgoingResponseFormat="Json"/>
</behavior>
</endpointBehaviors>
</behaviors>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" />
</system.serviceModel>
私はこのエラーに苦労しています。誰でもこのエラーについて何か考えがあります。前もって感謝します。