从WCF/.Net向WSDL输出添加注释

[ServiceContract]
public interface IMyService
{
    [OperationContract]
    [Description("This is a sample operation")]
    string GetData(int value);
}

[ServiceBehavior]
public class MyService : IMyService
{
    [Display(Description = "This is a sample operation")]
    public string GetData(int value)
    {
        return string.Format("You entered: {0}", value);
    }
}

public class WsdlDocumentationBehavior : IWsdlExportExtension
{
    public void ExportContract(WsdlExporter exporter, WsdlContractConversionContext context)
    {
        foreach (OperationDescription operation in context.Contract.Operations)
        {
            AddDocumentation(operation, operation.SyncMethod);
        }
    }

    private void AddDocumentation(OperationDescription operation, MethodInfo method)
    {
        string documentation = GetDocumentation(method);
        if (!string.IsNullOrEmpty(documentation))
        {
            operation.Documentation = documentation;
        }
    }

    private string GetDocumentation(MethodInfo method)
    {
        object[] attributes = method.GetCustomAttributes(typeof(DescriptionAttribute), false);
        if (attributes.Length > 0)
        {
            return ((DescriptionAttribute)attributes[0]).Description;
        }
        return null;
    }
}

 <extensions>
    <behaviorExtensions>
      <add name="wsdlDocumentation" type="MyService.WsdlDocumentationBehavior, MyService, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null"/>
    </behaviorExtensions>
  </extensions>
  <behaviors>
   <serviceBehaviors>
      <behavior>
       <serviceMetadata httpGetEnabled="true" httpGetUrl=""/>
        <wsdlDocumentation/>
      </behavior>
    </serviceBehaviors>
  </behaviors>
 <services>
   <service name="MyService.MyService">
     <endpoint address="" binding="basicHttpBinding" contract="MyService.IMyService"/>
    </service>
  </services>
</system.serviceModel>