WebOperationContext.Current.OutOngonResponse.Header停止使用自定义IDISPATCHMESSAGEFORMATERTARTE

Question

我有自定义 idisPatchMessageFormatter 注册

        public class JsonOperationBehavior : IOperationBehavior
        {
            public void AddBindingParameters(OperationDescription operationDescription, BindingParameterCollection bindingParameters)
            {

            }
            public void ApplyClientBehavior(OperationDescription operationDescription, ClientOperation clientOperation)
            {

            }
            public void ApplyDispatchBehavior(OperationDescription operationDescription, DispatchOperation dispatchOperation)
            {
                dispatchOperation.Formatter = new JsonFormatter(operationDescription, dispatchOperation.Formatter);
            }
            public void Validate(OperationDescription operationDescription)
            {

            }
        }

        public class JsonFormatter : IDispatchMessageFormatter
        {
            readonly OperationDescription _operationDescription;
            readonly IDispatchMessageFormatter _originalFormatter;

            public JsonFormatter(OperationDescription operationDescription, IDispatchMessageFormatter originalFormatter)
            {
                _operationDescription = operationDescription;
                _originalFormatter = originalFormatter;
            }


            public void DeserializeRequest(Message message, object[] parameters)
            {
                parameters[0] = JsonHelper.DeserializeObject(GetRequestType(), WebServiceHelper.GetRequestRawStringBody(message));
            }

            public Message SerializeReply(MessageVersion messageVersion, object[] parameters, object result)
            {
                var json = JsonHelper.SerializeObject(GetResponseType(), result);
                var bytes = Encoding.UTF8.GetBytes(json);
                var replyMessage = Message.CreateMessage(messageVersion, GetResponseAction(), new RawDataWriter(bytes));
                replyMessage.Properties.Add(WebBodyFormatMessageProperty.Name, new WebBodyFormatMessageProperty(WebContentFormat.Raw));

                return replyMessage;
            }


            private Type GetRequestType()
            {
                return _operationDescription.Messages[0].Body.Parts.Last().Type;
            }

            private Type GetResponseType()
            {
                return (_operationDescription.SyncMethod ?? _operationDescription.EndMethod).ReturnType;
            }

            private string GetResponseAction()
            {
                return _operationDescription.Messages[1].Action;
            }
        }

每个事物看起来都正确，但我指出，在

            WebOperationContext.Current.OutgoingResponse.Headers.Add(name, value);

停止工作之前工作的其他地方，没有显示新的标题。

但是随后，我将代码添加在 serializereply 中，例如：

_ = _originalFormatter.SerializeReply(messageVersion, parameters, result);

即使我不使用此功能的结果，标题也会再次工作。

Answer 1

在查看了WCF的源代码之后：

nnnb1 refence n N.NN N N.NN N.N N.N.NN N.N.NN NN） https://referencesource.microsoft.com/#servicemodel.web/system/servicemodel/dispatcher/multiplexiplexipingdispatchmessageformatter.cs，43219486eb5aa.b5aa.8b1 references /

全部归结为：

WebOperationContext.Current.OutgoingResponse.ContentType = "application/json; charset=utf-8";

WebOperationContext.Current.OutOnginResponse.headers 需要正确的工作。