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我希望能夠建立其實現以下WCF服務：不能暴露REST XML，JSON REST和SOAP通過適當的配置只對WCF
- REST風格暴露出JSON
- REST風格公開XML
- 自曝SOAP
- 其他綁定如有必要
這裏的關鍵是，我想要做的這一切通過配置，並且只有一個函數用代碼編寫，用於每個所需的方法，而不必在代碼ResponseFormat=ResponseFormat.Json或ResponseFormat=ResponseFormat.Xml以上單獨指定RESTful方法的單獨函數。我已經做了大量的研究，並且我無法找到任何可靠的信息，純粹是否可以通過配置實現。
奇怪的是，當我構建項目時，RESTful方法在通過URL訪問它們時起作用，但WSDL引發錯誤 - 即如果有人想通過SOAP引用/使用服務，它將在WSDL上失敗導入步驟。
該服務的代碼如下，以及配置，該服務託管在本地進行測試http://localhost/WCF。以下2個RESTful的通話成功地工作，並在瀏覽器中成功返回XML和JSON：
本地主機/ WCF/service1.svc/JSON /學生
本地主機/ WCF/service1.svc/REST /學生
但是，如果我撥打http://localhost/WCF/service1.svc?wsdl，我會收到下面的錯誤消息。如果我刪除了一個webhttpBinding端點配置，那麼WSDL將正常工作並顯示，因此可以被引用。
是不是有可能在配置中有多個webHttpBindings（即必須通過單獨的方法和屬性完成，例如ResponseFormat=ResponseFormat.Json）才能使WSDL生成有效？或者我在這裏配置了錯誤的東西？
任何幫助表示讚賞，會更直接地通過配置來執行指定序列化的額外功能。謝謝。
WSDL文件生成錯誤
An ExceptionDetail, likely created by IncludeExceptionDetailInFaults=true, whose value is:
System.NullReferenceException: Object reference not set to an instance of an object.
at System.ServiceModel.Description.WsdlExporter.CreateWsdlBindingAndPort(ServiceEndpoint endpoint, XmlQualifiedName wsdlServiceQName, Port& wsdlPort, Boolean& newBinding, Boolean& bindingNameWasUniquified)
at System.ServiceModel.Description.WsdlExporter.ExportEndpoint(ServiceEndpoint endpoint, XmlQualifiedName wsdlServiceQName)
at System.ServiceModel.Description.WsdlExporter.ExportEndpoints(IEnumerable`1 endpoints, XmlQualifiedName wsdlServiceQName)
at System.ServiceModel.Description.ServiceMetadataBehavior.MetadataExtensionInitializer.GenerateMetadata()
at System.ServiceModel.Description.ServiceMetadataExtension.EnsureInitialized()
at System.ServiceModel.Description.ServiceMetadataExtension.get_Metadata()
at System.ServiceModel.Description.ServiceMetadataExtension.HttpGetImpl.InitializationData.InitializeFrom(ServiceMetadataExtension extension)
at System.ServiceModel.Description.ServiceMetadataExtension.HttpGetImpl.GetInitData()
at System.ServiceModel.Description.ServiceMetadataExtension.HttpGetImpl.TryHandleMetadataRequest(Message httpGetRequest, String[] queries, Message& replyMessage)
at System.ServiceModel.Description.ServiceMetadataExtension.HttpGetImpl.ProcessHttpRequest(Message httpGetRequest)
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.ProcessMessage31(MessageRpc& rpc)
at System.ServiceModel.Dispatcher.MessageRpc.Process(Boolean isOperationContextSet)
的Web.config
<?xml version="1.0"?>
<configuration>
<system.web>
<compilation debug="true" targetFramework="4.0" />
</system.web>
<system.serviceModel>
<services>
<service behaviorConfiguration="httpGetBehavior" name="WCF.Service1">
<endpoint address="json" binding="webHttpBinding" name="jsonRest" contract="WCF.IService1" behaviorConfiguration="jsonBehavior"></endpoint>
<endpoint address="rest" binding="webHttpBinding" name="xmlRest" contract="WCF.IService1" behaviorConfiguration="restBehaviour"></endpoint>
<endpoint address="soap" binding="basicHttpBinding" name="soap" contract="WCF.IService1"></endpoint>
<endpoint name="mex" address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
<host>
<baseAddresses>
<add baseAddress="http://localhost/WCF"/>
</baseAddresses>
</host>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="httpGetBehavior">
<serviceMetadata httpGetEnabled="true"/>
</behavior>
</serviceBehaviors>
<endpointBehaviors>
<behavior name="jsonBehavior">
<webHttp defaultOutgoingResponseFormat="Json"/>
</behavior>
<behavior name="restBehaviour">
<webHttp/>
</behavior>
</endpointBehaviors>
</behaviors>
<serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
</system.serviceModel>
<system.webServer>
<modules runAllManagedModulesForAllRequests="true"/>
</system.webServer>
</configuration>
代碼
public class Service1 : IService1
{
public IList<Student> GetStudents()
{
IList<Student> students = new List<Student>();
students.Add(new Student() { FirstNme = "Bob", LastName = "Long", StudentId = 1, Subject = "Economics" });
students.Add(new Student() { FirstNme = "Jack", LastName = "Short", StudentId = 2, Subject = "IT" });
return students;
}
}
[ServiceContract]
public interface IService1
{
[WebGet(UriTemplate = "/students")]
[OperationContract]
IList<Student> GetStudents();
}
[DataContract]
public class Student
{
private int _studentId;
private string _firstName;
private string _lastName;
private string _subject;
[DataMember]
public int StudentId
{
get { return _studentId; }
set { _studentId = value; }
}
[DataMember]
public string FirstNme
{
get { return _firstName; }
set { _firstName = value; }
}
[DataMember]
public string LastName
{
get { return _lastName; }
set { _lastName = value; }
}
[DataMember]
public string Subject
{
get { return _subject; }
set { _subject = value; }
}
}
感謝您的反饋，我實際上設法終於找到這個隱晦別的地方還有，但它似乎並不容易找到。請求內容類型的解決方法在這裏聽起來很不錯。 – Fitzroy79 2012-04-06 02:45:55
的WebAPI不提供WSDL – PositiveGuy 2013-10-13 15:41:54