將http頭添加到Service Reference服務方法

Question

我已經從WSDL生成服務引用。我一直在成功地針對服務參考編寫客戶端。我一直在使用serviceRef.serviceMethod（params ...）模式來調用基於服務的方法。現在我需要將http頭添加到我發送的消息中。我無法找到將它們設置爲服務的所有消息的默認位置，也無法在調用某些方法時找到我可以設置它們的位置。一些文章建議我可以使用IClientMessageInspector，但實現看起來很複雜。有什麼建議麼？

Answer 1

從許多地方借鑑，但大多是：

http://msmvps.com/blogs/paulomorgado/archive/2007/04/27/wcf-building-an-http-user-agent-message-inspector.aspx

我簡化了，但我覺得我有這將添加自定義httpheaders的實現。

public class HttpHeaderMessageInspector : IClientMessageInspector 
    { 
     private readonly Dictionary<string, string> _httpHeaders; 

     public HttpHeaderMessageInspector(Dictionary<string, string> httpHeaders) 
     { 
      this._httpHeaders = httpHeaders; 
     } 

     public void AfterReceiveReply(ref Message reply, object correlationState) { } 

     public object BeforeSendRequest(ref Message request, IClientChannel channel) 
     { 
      HttpRequestMessageProperty httpRequestMessage; 
      object httpRequestMessageObject; 

      if (request.Properties.TryGetValue(HttpRequestMessageProperty.Name, out httpRequestMessageObject)) 
      { 
       httpRequestMessage = httpRequestMessageObject as HttpRequestMessageProperty; 

       foreach (var httpHeader in _httpHeaders) 
       { 
        httpRequestMessage.Headers[httpHeader.Key] = httpHeader.Value; 
       } 
      } 
      else 
      { 
       httpRequestMessage = new HttpRequestMessageProperty(); 

       foreach (var httpHeader in _httpHeaders) 
       { 
        httpRequestMessage.Headers.Add(httpHeader.Key, httpHeader.Value); 
       } 
       request.Properties.Add(HttpRequestMessageProperty.Name, httpRequestMessage); 
      } 
      return null; 
     } 
    } 

internal class HttpHeadersEndpointBehavior : IEndpointBehavior 
    { 
     private readonly Dictionary<string,string> _httpHeaders; 

     public HttpHeadersEndpointBehavior(Dictionary<string, string> httpHeaders) 
     { 
      this._httpHeaders = httpHeaders; 
     } 
     public void AddBindingParameters(ServiceEndpoint endpoint, BindingParameterCollection bindingParameters) { } 

     public void ApplyClientBehavior(ServiceEndpoint endpoint, ClientRuntime clientRuntime) 
     { 
      var inspector = new HttpHeaderMessageInspector(this._httpHeaders); 

      clientRuntime.MessageInspectors.Add(inspector); 
     } 

     public void ApplyDispatchBehavior(ServiceEndpoint endpoint, EndpointDispatcher endpointDispatcher) { } 
     public void Validate(ServiceEndpoint endpoint) { } 
    } 

然後newing我的服務引用後：

var httpHeaders = new Dictionary<string, string>(); 
    httpHeaders.Add("header1", "value1"); 
    httpHeaders.Add("header2", "value2"); 

    _serviceRef.Endpoint.Behaviors.Add(new HttpHeadersEndpointBehavior(httpHeaders)); 

閒來無事不得不改變。如果你想到一個更簡單的方法，讓我知道。