Question

使用ConfigurationChannelFactory.CreateChannel时，我需要向WCF请求添加请求标头。

我已经尝试使用OperationContextScope。

我具有如下功能：

    public O Execute<O>(Func<T, O> action, string configFilePath, string endpoint, StringDictionary headers)
    {
        bool closed = false;
        T channel = default(T);
        O output = default(O);

        try
        {
            channel = this.GetChannel(configFilePath, endpoint);

            if (headers != null && headers.Count > 0)
            {
                (channel as IClientChannel).Open();
                using (new OperationContextScope(channel as IClientChannel))
                {
                    HttpRequestMessageProperty requestMessage = new HttpRequestMessageProperty();
                    foreach (DictionaryEntry header in headers)
                    {
                        requestMessage.Headers[header.Key.ToString()] = header.Value.ToString();
                    }

                    OperationContext.Current.OutgoingMessageProperties[HttpRequestMessageProperty.Name] = requestMessage;
                    output = action(channel);
                }
                (channel as IClientChannel).Close();
            }
            else
            {
                (channel as IClientChannel).Open();
                output = action(channel);
                (channel as IClientChannel).Close();
            }

            closed = true;
        }
        finally
        {
            if (!closed && channel != null)
            {
                (channel as IClientChannel).Abort();
            }
        }

        return output;
    }

    private T GetChannel(string configFilePath, string endpoint)
    {
        //Get the ChannelFactoryObject
        ConfigurationChannelFactory<T> wcfClientFactory = null;
        ExeConfigurationFileMap fileMap = new ExeConfigurationFileMap { ExeConfigFilename = configFilePath };
        wcfClientFactory = new ConfigurationChannelFactory<T>(endpoint, ConfigurationManager.OpenMappedExeConfiguration(fileMap, ConfigurationUserLevel.None), null); 
        return wcfClientFactory.CreateChannel();
    }

配置文件条目：

&lt;security mode="Transport"&gt;
   &lt;transport clientCredentialType="None" proxyCredentialType="None" realm="" /&gt;;clientCredentialType="Windows" negotiateServiceCredential="true" /&gt;
&lt;/security&gt;

上面的函数是从另一个.cs文件中调用的，如下所示，并传递Func<T,O>作为参数：

Execute&lt;MyService.InformationResponse[]&gt;=&gt;IMyService.GetInformation(Request), ConfigPath, myServiceEndPoint, headers);

我得到了400，BadRequest，因为服务期望Request头中没有它的“授权”。

Answer 1

我们可以使用WebOperationContext类来更改和添加HTTP标头，请参考以下代码段。

  IService service = factory.CreateChannel();
            using (OperationContextScope scope = new OperationContextScope((IContextChannel)service))
            {
                WebOperationContext.Current.OutgoingRequest.ContentType = "application/json; charset=utf-8";
                WebOperationContext.Current.OutgoingRequest.Headers.Add("Authorization", "bearer xxxxxxxx");
                service.GetData();
            }

结果。

有关详细信息，
https://docs.microsoft.com/en-us/dotnet/api/system.servicemodel.web.weboperationcontext?redirectedfrom=MSDN&view=netframework-4.8
随时让我知道是否有什么可以帮助您的。

使用ConfigurationChannelFactory.CreateChannel时将请求标头添加到WCF

1 个答案: