[ServiceContract]
    public interface IMemberService
    {
        [OperationContract]
        string GetData(int value);

        [OperationContract]
        CompositeType GetDataUsingDataContract(CompositeType composite);

        [OperationContract]
        [WebInvoke(Method = "POST", UriTemplate = "/create", ResponseFormat = WebMessageFormat.Json, RequestFormat = WebMessageFormat.Json, BodyStyle = WebMessageBodyStyle.Wrapped)]
        string CreateMember(Member member);

        [OperationContract]
        [WebGet(UriTemplate = "all")]
        string GetAll();
        // TODO: 在此添加您的服务操作
    }

<%@ServiceHost language=c# Debug="true" Service="WebApplication1.MemberService" Factory="System.ServiceModel.Activation.WebServiceHostFactory"%>

Request Headers：

User-Agent: Fiddler
Content-Type: application/json;charset=UTF-8
Host: localhost:4087
Content-Length: 45


RequestBody:
{"member":{"ID":"Brett","Name":"McLaughlin"}}