能够同时响应JSON(P)和XML并仍然用作SOAP web服务的RESTful WCF服务?

Given a contract such as:

订立合同，例如:

[ServiceContract] public interface IService
{
    [OperationContract]
    [WebGet(UriTemplate = "GetData/{id}.{format}")]
    ResponseData GetData(string id, string format);
}
[Service