MetadataResolver Classe

Definizione

public ref class MetadataResolver abstract sealed

public static class MetadataResolver

type MetadataResolver = class

Public Class MetadataResolver

Ereditarietà

Object

MetadataResolver

Esempio

Nell'esempio di codice seguente viene illustrato l'uso della MetadataResolver classe per restituire metadati come raccolta di ServiceEndpoint oggetti che vengono quindi usati per connettersi a un'istanza del servizio.

// Get the endpoints for such a service
ServiceEndpointCollection endpoints = MetadataResolver.Resolve(typeof(SampleServiceClient), metaAddress);
Console.WriteLine("Trying all available WS-Transfer metadata endpoints...");

foreach (ServiceEndpoint point in endpoints)
{
    if (point != null)
    {
        // Create a new wcfClient using retrieved endpoints.
        wcfClient = new SampleServiceClient(point.Binding, point.Address);
        Console.WriteLine(
          wcfClient.SampleMethod("Client used the "
          + point.Address.ToString()
          + " address.")
        );
        wcfClient.Close();
    }
}

Nell'esempio di codice seguente viene illustrato l'uso di MetadataResolver per scaricare e restituire metadati come raccolta di ServiceEndpoint oggetti usando una richiesta HTTP GET anziché WS-Transfer.

// Get the endpoints for such a service using Http/Get request
endpoints = MetadataResolver.Resolve(typeof(SampleServiceClient), httpGetMetaAddress.Uri, MetadataExchangeClientMode.HttpGet);
Client.WriteParameters(endpoints);
ISampleService serviceChannel;
Console.WriteLine(
  "\r\nTrying all endpoints from HTTP/Get and with direct service channels...");

foreach (ServiceEndpoint point in endpoints)
{
    if (point != null)
    {
        ChannelFactory<ISampleService> factory = new ChannelFactory<ISampleService>(point.Binding);
        factory.Endpoint.Address = point.Address;
        serviceChannel = factory.CreateChannel();
        Console.WriteLine("Client used the " + point.Address.ToString() + " address.");
        Console.WriteLine(
          serviceChannel.SampleMethod(
            "Client used the " + point.Address.ToString() + " address."
          )
        );
        factory.Close();
    }
}

Commenti

Usare la MetadataResolver classe per importare rapidamente gli endpoint per un servizio dai metadati. Questa classe scarica e converte i metadati in ServiceEndpoint oggetti. Per scaricare i metadati ed elaborare tali informazioni come System.ServiceModel.Description.MetadataSet, vedere System.ServiceModel.Description.MetadataExchangeClient.