WCF REST-“；获取"；使用复杂类型

我有一个WCF 4 RESTful web服务，它必须在GET（其JSONP）上使用。我向这个服务添加了一个方法，它需要一个复杂的类型参数。

[OperationContract]
[WebGet(RequestFormat=WebMessageFormat.Json)]
void InsertEventActionList(string pageViewGUID, 
                             List<EventActionItem> eventActionItemList);

然后我得到了错误：

Operation 'InsertEventActionList' in contract 'ITrackingService' 
has a query variable named 'eventActionItemList' of type 
'System.Collections.Generic.List`1[EventActionItem]', but type 
'System.Collections.Generic.List`1[EventActionItem]' is not convertible by 
'QueryStringConverter'.  Variables for UriTemplate query values 
must have types that can be converted by 'QueryStringConverter'.

好吧，所以使用这篇文章-http://blogs.msdn.com/b/carlosfigueira/archive/2011/08/09/wcf-extensibility-querystringconverter.aspx我创建了一个附加到行为扩展的自定义QueryStringConverter：

[DataContract]
public class EventActionItem
{
    [DataMember]
    public string ActionName { get; set; }
    [DataMember]
    public string ActionValue { get; set; }
    [DataMember]
    public string ActionCategory { get; set; }
}
public class EventActionItemQueryStringConverter : QueryStringConverter
{
    public override bool CanConvert(Type type)
    {
        return type == typeof(List<EventActionItem>) || base.CanConvert(type);
    }
    public override object ConvertStringToValue(string parameter, Type parameterType)
    {
        if (parameterType == typeof(List<EventActionItem>))
        {
            List<EventActionItem> item = JsonConvert.DeserializeObject<List<EventActionItem>>(parameter);
            if (item != default(List<EventActionItem>))
            {
                return item;
            }
        }
        return base.ConvertStringToValue(parameter, parameterType);
    }
}
public class TrackingWebHttpBehavior : WebHttpBehavior
{
    protected override QueryStringConverter GetQueryStringConverter(OperationDescription operationDescription)
    {
        return new EventActionItemQueryStringConverter();
    }
}
public class TrackingBehaviorExtension : BehaviorExtensionElement
{
    public override Type BehaviorType
    {
        get { return typeof(TrackingWebHttpBehavior); }
    }
    protected override object CreateBehavior()
    {
        return new TrackingWebHttpBehavior();
    }
}

web.config：

<system.serviceModel>
    <extensions>
      <behaviorExtensions>
        <add name="queryString"
             type="namespace.TrackingBehaviorExtension, namespace"/>
      </behaviorExtensions>
    </extensions>
    <behaviors>
      <serviceBehaviors>
        <behavior>
          <serviceMetadata httpGetEnabled="true"/>
          <serviceDebug includeExceptionDetailInFaults="false"/>
        </behavior>
      </serviceBehaviors>
      <endpointBehaviors>
        <behavior>
          <queryString />
        </behavior>
      </endpointBehaviors>
    </behaviors>
    <serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true"/>
    <standardEndpoints>
      <webHttpEndpoint>
        <standardEndpoint name="" helpEnabled="true" automaticFormatSelectionEnabled="true" />
      </webHttpEndpoint>
    </standardEndpoints>
  </system.serviceModel>

但是，我仍然收到相同的错误。我已经调试了服务初始化，正在创建BehaviorExtensionElement，但从未调用过QueryStringConverter。

是因为我使用的是standardEndpoint配置，而不是客户用户定义的端点吗？如果是，我如何将自定义行为附加到standardEndpoint？