如何更改 WCf 服务的 wsdl 文件中的默认 schemalocation？

Answer 1

您可以通过添加实现“IWsdlExportExtension”的新行为来动态更新 WSDL 元数据中的 WCF 端点地址

public class HostNameAddressBehavior : Attribute, IWsdlExportExtension, IEndpointBehavior, IServiceBehavior
{
    public void AddBindingParameters(ServiceEndpoint endpoint,
        BindingParameterCollection bindingParameters)
    {
    }

    public void ApplyClientBehavior(ServiceEndpoint endpoint,
        ClientRuntime clientRuntime)
    {
    }

    public void ApplyDispatchBehavior(ServiceEndpoint endpoint,
        EndpointDispatcher endpointDispatcher)
    {

    }

    public void Validate(ServiceEndpoint endpoint)
    {
    }

    public void AddBindingParameters(ServiceDescription serviceDescription,
        ServiceHostBase serviceHostBase, Collection<ServiceEndpoint> endpoints,
        BindingParameterCollection bindingParameters)
    {
    }

    public void ApplyDispatchBehavior(ServiceDescription serviceDescription,
        ServiceHostBase serviceHostBase)
    {
    }

    public void Validate(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase)
    {
    }

    public void ExportContract(WsdlExporter exporter,
        WsdlContractConversionContext context)
    {
    }

    /// <summary>
    /// Overwrite service meta data
    /// </summary>
    /// <param name="exporter"></param>
    /// <param name="context"></param>
    public void ExportEndpoint(WsdlExporter exporter, WsdlEndpointConversionContext context)
    {
        var address = "YOUR_ENDPOINT";

        context.Endpoint.Address = new System.ServiceModel.EndpointAddress(address);

        XmlSchemaSet schemaSet = exporter.GeneratedXmlSchemas;

        foreach (System.Web.Services.Description.ServiceDescription wsdl in exporter.GeneratedWsdlDocuments)
        {
            foreach (XmlSchema schema in wsdl.Types.Schemas)
            {
                ChangeSchemaLocation(schemaSet, schema, address);
            }
        }
    }

    /// <summary>
    /// Update XSD location
    /// </summary>
    /// <param name="xmlSchemaSet"></param>
    /// <param name="xsdDoc"></param>
    /// <param name="address"></param>
    private void ChangeSchemaLocation(XmlSchemaSet xmlSchemaSet, XmlSchema xsdDoc, string address)
    {
        foreach (XmlSchemaExternal external in xsdDoc.Includes)
        {
            if ((external != null) && string.IsNullOrEmpty(external.SchemaLocation))
            {
                string str = (external is XmlSchemaImport) ? ((XmlSchemaImport)external).Namespace : xsdDoc.TargetNamespace;
                foreach (XmlSchema schema in xmlSchemaSet.Schemas(str ?? string.Empty))
                {
                    if (schema != xsdDoc)
                    {
                        external.SchemaLocation = address + "/?xsd=xsd0"; // set the location;
                        break;
                    }
                }
                continue;
            }
        }
    }
}

通过代码或配置文件添加新行为。

通过代码：

var endpoint = listener.ServiceHost.Description.Endpoints.First();
endpoint.Behaviors.Add(new HostNameAddressBehavior());

或

按配置：

创建扩展：

    public class HostNameAddressBehaviorExtension : BehaviorExtensionElement
{
    public override Type BehaviorType
    {
        get
        {
            return typeof(HostNameAddressBehavior);
        }
    }

    protected override object CreateBehavior()
    {
        return new HostNameAddressBehavior();
    }
}

然后添加：

<extensions>
    <behaviorExtensions>
      <add name="hostNameAddress" type="YourService.HostNameAddressBehaviorExtension, YourService, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null"/>
    </behaviorExtensions>
  </extensions>