如何:导入自定义 WSDL

本主题描述如何导入自定义 WSDL。若要处理自定义 WSDL,必须实现 IWsdlImportExtension 接口。

导入自定义 WSDL

  1. 实现 IWsdlImportExtension。实现 BeforeImport 方法,以便在导入元数据之前对其进行修改。实现 ImportEndpointImportContract 方法,以便修改从元数据导入的协定和终结点。若要访问所导入的协定或终结点,请使用相应的上下文对象(WsdlContractConversionContextWsdlEndpointConversionContext):

    public class WsdlDocumentationImporter : IWsdlImportExtension
       {
          public void ImportContract(WsdlImporter importer, WsdlContractConversionContext context)
    {
            // Contract documentation
         if (context.WsdlPortType.Documentation != null)
         {
               context.Contract.Behaviors.Add(new WsdlDocumentationImporter(context.WsdlPortType.Documentation));
    }
    // Operation documentation
    foreach (Operation operation in context.WsdlPortType.Operations)
    {
    if (operation.Documentation != null)
    {
    OperationDescription operationDescription = context.Contract.Operations.Find(operation.Name);
    if (operationDescription != null)
    {
                            operationDescription.Behaviors.Add(new WsdlDocumentationImporter(operation.Documentation));
    }
    }
    }
    }
    
    public void BeforeImport(ServiceDescriptionCollection wsdlDocuments, XmlSchemaSet xmlSchemas, ICollection<XmlElement> policy) 
            {
                Console.WriteLine("BeforeImport called.");
            }
    
    public void ImportEndpoint(WsdlImporter importer, WsdlEndpointConversionContext context) 
            {
                Console.WriteLine("ImportEndpoint called.");
            }
       }
    
  2. 将客户端应用程序配置为使用自定义 WSDL 导入程序。请注意,如果使用的是 Svcutil.exe,则应将此配置添加到 Svcutil.exe (Svcutil.exe.config) 的配置文件中:

    <system.serviceModel>
          <client>
            <endpoint 
              address="https://localhost:8000/Fibonacci" 
              binding="wsHttpBinding"
              contract="IFibonacci"
            />
            <metadata>
              <wsdlImporters>
                <extension type="Microsoft.WCF.Documentation.WsdlDocumentationImporter, WsdlDocumentation" />
              </wsdlImporters>
            </metadata>
          </client>
        </system.serviceModel>
    
  3. 创建一个新的 WsdlImporter 实例(并将其传入包含要导入的 WSDL 文档的 MetadataSet 实例),然后调用 ImportAllContracts

    WsdlImporter importer = new WsdlImporter(metaDocs);          System.Collections.ObjectModel.Collection<ContractDescription> contracts  = importer.ImportAllContracts();
    

另请参见

概念

元数据
导出和导入元数据

其他资源

Custom WSDL Publication