WCF - 如何正确配置MVC客户端使用WCF服务？

我完全知道这个问题已经被讨论了很多次，但是这是我的项目的一个特定配置，我很想掌握哪些使我的服务 - 客户端通信出错。我在这件事上请求你的帮助。请原谅我的愚蠢错误，我对WCF和REST服务一般都很陌生。WCF - 如何正确配置MVC客户端使用WCF服务？

所以，基本上，我想创建一个MVC应用程序，它将使用托管在IIS服务器上的WCF REST服务。

我已经创建了一个WCF服务应用程序具有以下服务合同：

[ServiceContract] 
public interface IUserService 
{ 
    [OperationContract] 
    [WebInvoke(Method = "GET", 
     ResponseFormat = WebMessageFormat.Json, 
     RequestFormat = WebMessageFormat.Json, 
     BodyStyle = WebMessageBodyStyle.Wrapped, 
     UriTemplate = "/ListaUtilizatori/")] 
    DataSet ListaUtilizatori(); 

    [OperationContract] 
    [WebInvoke(Method = "GET", 
     ResponseFormat = WebMessageFormat.Json, 
     RequestFormat = WebMessageFormat.Json, 
     BodyStyle = WebMessageBodyStyle.Wrapped, 
     UriTemplate = "/DetaliiUtilizator/{id}")] 
    DataSet DetaliiUtilizator(String id); 


    [OperationContract] 
    [WebInvoke(Method = "POST", 
     ResponseFormat = WebMessageFormat.Json, 
     RequestFormat = WebMessageFormat.Json, 
     BodyStyle = WebMessageBodyStyle.Wrapped, 
     UriTemplate = "/AdaugaUtilizator")] 
    String AdaugaUtilizator(Utilizator utilizator); 

    [OperationContract] 
    [WebInvoke(Method = "PUT", 
     RequestFormat = WebMessageFormat.Json, 
     ResponseFormat = WebMessageFormat.Json, 
     UriTemplate = "/ActualizeazaUtilizator")] 
    String ActualizeazaUtilizator(Utilizator utilizator); 

    [OperationContract] 
    [WebInvoke(Method = "DELETE", 
     RequestFormat = WebMessageFormat.Json, 
     ResponseFormat = WebMessageFormat.Json, 
     UriTemplate = "/StergeUtilizator/{id}")] 
    String StergeUtilizator(String id); 
}

我正确实现的方法和在web.config文件I配置的服务模型为这样：

<system.serviceModel> 
    <services> 
     <service name="RESTService.UserService" behaviorConfiguration="RESTServiceBehaviour"> 
     <endpoint address="" binding="webHttpBinding" bindingConfiguration="WebHttpBinding_IUserService" contract="RESTService.IUserService" behaviorConfiguration="RESTEndpointBehavior"></endpoint> 
     </service> 
    </services> 
    <behaviors> 
     <serviceBehaviors>   
     <behavior name="RESTServiceBehaviour"> 
      <!-- To avoid disclosing metadata information, set the values below to false before deployment --> 
      <serviceMetadata httpGetEnabled="true" httpsGetEnabled="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="RESTEndpointBehavior"> 
      <webHttp helpEnabled="True"/> 
     </behavior> 
     </endpointBehaviors> 
    </behaviors> 
    <bindings> 
     <webHttpBinding> 
     <binding name="WebHttpBinding_IUserService" /> 
     </webHttpBinding> 
    </bindings> 
    <protocolMapping> 
     <add binding="webHttpBinding" scheme="http" /> 
    </protocolMapping>  
    <serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" /> 
    </system.serviceModel>

之后，我在IIS服务器上发布了WCF App，它在浏览器中正常返回预期的JSON格式响应。

我创建了一个MVC应用程序，我向其添加了对发布的WCF服务的服务引用，并将其命名为UserServiceReference。奇怪的是，没有system.serviceModel节点加入或在MVC的web.config配置，所以手动添加了以下内容：

<system.serviceModel> 
    <behaviors> 
     <endpointBehaviors> 
     <behavior name="RESTEndpoint"> 
      <webHttp helpEnabled="true"/> 
     </behavior> 
     </endpointBehaviors> 
    </behaviors> 
    <bindings> 
     <webHttpBinding> 
     <binding name="WebHttpBinding_IUserService" />   
     </webHttpBinding>  
    </bindings> 
    <client> 
     <endpoint address="http://localhost/RESTUserService/UserService.svc" binding="webHttpBinding" bindingConfiguration="WebHttpBinding_IUserService" 
       behaviorConfiguration="RESTEndpoint" contract="UserServiceReference.IUserService" name="WebHttpBinding_IUserService" /> 
    </client> 
</system.serviceModel>

然后我试图通过在应用程序的用下面的代码控制器之一创建客户机来测试功能：

UserServiceReference.UserServiceClient client = new UserServiceReference.UserServiceClient(); 
      DataSet ds = client.DetaliiUtilizator("2"); 
UserServiceReference.UserDataContractUtilizator utilizator = new UserServiceReference.UserDataContractUtilizator();

当我运行我的应用程序我得到这个错误在浏览器：

[WebException: The remote server returned an error: (404) Not Found.] System.Net.HttpWebRequest.GetResponse() +1390 System.ServiceModel.Channels.HttpChannelRequest.WaitForReply(TimeSpan timeout) +55 

[EndpointNotFoundException: There was no endpoint listening at http://localhost/RESTUserService/UserService.svc/DetaliiUtilizator that could accept the message. This is often caused by an incorrect address or SOAP action. See InnerException, if present, for more details.] 
System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg) +153 



System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type) +336 
    MVCApp.UserServiceReference.IUserService.DetaliiUtilizator(String id) +0 
    MVCApp.UserServiceReference.UserServiceClient.DetaliiUtilizator(String id) in D:\F5IT\PROJECT\RESTService\MVCApp\Service References\UserServiceReference\Reference.cs:308 
    MVCApp.Controllers.HomeController.Index() in D:\F5IT\PROJECT\RESTService\MVCApp\Controllers\HomeController.cs:34 
    lambda_method(Closure , ControllerBase , Object[]) +61 
    System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters) +14 
    System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) +157 
    System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +27 
    System.Web.Mvc.Async.AsyncControllerActionInvoker.<BeginInvokeSynchronousActionMethod>b__39(IAsyncResult asyncResult, ActionInvocation innerInvokeState) +22 
    System.Web.Mvc.Async.WrappedAsyncResult`2.CallEndDelegate(IAsyncResult asyncResult) +29 
    System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +49 
    System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult) +32 
    System.Web.Mvc.Async.AsyncInvocationWithFilters.<InvokeActionMethodFilterAsynchronouslyRecursive>b__3d() +50 
    System.Web.Mvc.Async.<>c__DisplayClass46.<InvokeActionMethodFilterAsynchronouslyRecursive>b__3f() +225 
    System.Web.Mvc.Async.<>c__DisplayClass33.<BeginInvokeActionMethodWithFilters>b__32(IAsyncResult asyncResult) +10 
    System.Web.Mvc.Async.WrappedAsyncResult`1.CallEndDelegate(IAsyncResult asyncResult) +10 
    System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +49 
    System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult asyncResult) +34 
    System.Web.Mvc.Async.<>c__DisplayClass2b.<BeginInvokeAction>b__1c() +26 
    System.Web.Mvc.Async.<>c__DisplayClass21.<BeginInvokeAction>b__1e(IAsyncResult asyncResult) +100 
    System.Web.Mvc.Async.WrappedAsyncResult`1.CallEndDelegate(IAsyncResult asyncResult) +10 
    System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +49 
    System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult) +27 
    System.Web.Mvc.Controller.<BeginExecuteCore>b__1d(IAsyncResult asyncResult, ExecuteCoreState innerState) +13 
    System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +29 
    System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +49 
    System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +36 
    System.Web.Mvc.Controller.<BeginExecute>b__15(IAsyncResult asyncResult, Controller controller) +12 
    System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +22 
    System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +49 
    System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +26 
    System.Web.Mvc.Controller.System.Web.Mvc.Async.IAsyncController.EndExecute(IAsyncResult asyncResult) +10 
    System.Web.Mvc.MvcHandler.<BeginProcessRequest>b__5(IAsyncResult asyncResult, ProcessRequestState innerState) +21 
    System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +29 
    System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +49 
    System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +28 
    System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +9 
    System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +9744373 
    System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155 
Source Error: 

Line 306:   
Line 307:  public System.Data.DataSet DetaliiUtilizator(string id) { 
Line 308:   return base.Channel.DetaliiUtilizator(id); 
Line 309:  } 
Line 310:

我说这些东西作为编译Ø f我读过的所有帖子。它必须是所有代码中的某个错误。会是什么呢？

非常感谢！

来源

2016-07-25 Ionna

从错误：'查看InnerException，如果存在，获取更多详细信息。' –

@JamieR我添加了整个异常。 – Ionna

您确定'http：// localhost/RESTUserService/UserService.svc/DetaliiUtilizator'是否是正确的端点？ –

我已经最终意识到该问题是在这篇文章中：

https://blogs.msdn.microsoft.com/carlosfigueira/2012/03/25/mixing-add-service-reference-and-wcf-web-http-a-k-a-rest-endpoint-does-not-work/

好像使用WebHttpBinding将导致无用的自动生成的客户端代码添加服务引用WCF服务与端点。

来源

2016-07-25 22:12:47 Ionna

WCF - 如何正确配置MVC客户端使用WCF服务？

回答

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