C# 如何在restful服务方法中将类对象作为参数传递？

我想将对象作为参数传递到restful服务方法中。下面是接口代码

 [OperationContract]
        [WebGet(ResponseFormat = WebMessageFormat.Json,
                    UriTemplate = "searchCMSExposure/{requestObject}")]
        ResponseObject<GenericCollection<CONT_EXPRInfo>> SearchCMSExposure(RequestObject<ProposalInfoParm> requestObject);

[运营合同]
[WebGet（ResponseFormat=WebMessageFormat.Json，
UriTemplate=“searchCMSExposure/{requestObject}”）]
ResponseObject SearchCMSExposure（请求对象请求对象）；

正如预期的那样，我在协定“IProposalService”中得到了错误操作“SearchCMSExposure”，该操作有一个名为“requestObject”的路径变量，该变量没有“string”类型。UriTemplate路径段的变量必须具有“string”类型。因为它需要字符串类型。如何在restful服务方法中将对象作为参数传递？

请尝试以下代码

     using System.ServiceModel.Dispatcher;
    using System.ServiceModel.Description;
  public class StackOverflow_6783264
{
 public class InputData
{
    public string FirstName;
    public string LastName;
}
[ServiceContract]
public interface ITest
{
    [OperationContract]
    [WebGet(UriTemplate = "/InsertData?param1={param1}")]
    string saveDataGet(InputData param1);
    [OperationContract]
    [WebInvoke(UriTemplate = "/InsertData")]
    string saveDataPost(InputData param1);
}
public class Service : ITest
{
    public string saveDataGet(InputData param1)
    {
        return "Via GET: " + param1.FirstName + " " + param1.LastName;
    }
    public string saveDataPost(InputData param1)
    {
        return "Via POST: " + param1.FirstName + " " + param1.LastName;
    }
}
public class MyQueryStringConverter : QueryStringConverter
{
    public override bool CanConvert(Type type)
    {
        return (type == typeof(InputData)) || base.CanConvert(type);
    }
    public override object ConvertStringToValue(string parameter, Type parameterType)
    {
        if (parameterType == typeof(InputData))
        {
            string[] parts = parameter.Split(',');
            return new InputData { FirstName = parts[0], LastName = parts[1] };
        }
        else
        {
            return base.ConvertStringToValue(parameter, parameterType);
        }
    }
}
public class MyWebHttpBehavior : WebHttpBehavior
{
    protected override QueryStringConverter GetQueryStringConverter(OperationDescription operationDescription)
    {
        return new MyQueryStringConverter();
    }
}
public static void Test()
{
    string baseAddress = "http://" + Environment.MachineName + ":8000/Service";
    ServiceHost host = new ServiceHost(typeof(Service), new Uri(baseAddress));
    host.AddServiceEndpoint(typeof(ITest), new WebHttpBinding(), "").Behaviors.Add(new MyWebHttpBehavior());
    host.Open();
    Console.WriteLine("Host opened");

    WebClient client = new WebClient();
    Console.WriteLine(client.DownloadString(baseAddress + "/InsertData?param1=John,Doe"));

    client = new WebClient();
    client.Headers[HttpRequestHeader.ContentType] = "application/json";
    Console.WriteLine(client.UploadString(baseAddress + "/InsertData", "{\"FirstName\":\"John\",\"LastName\":\"Doe\"}"));

    Console.Write("Press ENTER to close the host");
    Console.ReadLine();
    host.Close();
 }

}