MetadataResolver 类

定义

public ref class MetadataResolver abstract sealed

public static class MetadataResolver

type MetadataResolver = class

Public Class MetadataResolver

继承

Object

MetadataResolver

示例

下面的代码示例演示如何使用 MetadataResolver 类将元数据作为对象集合 ServiceEndpoint 返回，这些对象随后用于连接到服务实例。

// 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();
    }
}

下面的代码示例演示如何使用 MetadataResolver HTTP GET 请求（而不是 WS-Transfer）将元数据下载和返回为对象的集合 ServiceEndpoint 。

// 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();
    }
}

注解

使用 MetadataResolver 类从元数据快速导入服务的终结点。 此类将下载元数据并将其转换为 ServiceEndpoint 对象。 若要下载元数据并处理该信息， System.ServiceModel.Description.MetadataSet请参阅 System.ServiceModel.Description.MetadataExchangeClient。