服务端接口定义另类方法

       内部接口的定义与实现各有千秋，本文所提到的是这样的思路：通过内部通用的方法完成“路由”转发，这样做的好处，不言而喻：单点控制风险、通用逻辑校验、流量控制……等等。

直接上代码：

    public class MerchantPayment : IMerchantPayment    {        #region IPaymentClient 成员        /// <summary>        /// 执行API请求        /// </summary>        /// <typeparam name="T">领域对象</typeparam>        /// <param name="request">具体的API请求</param>        /// <param name="parser">自定义解析器</param>        /// <returns>领域对象</returns>        public T Execute<T>(IRequest request, IParser<T> parser) where T : IResponse        {            try            {                int RetCode = ToolUtils.CheckInvokeParameter(request);                if (RetCode != Consts.Success)                {                    return parser.Parse(RetCode);                }                InterfaceFactory factory = new InterfaceFactory();                factory.ApiName = request.GetApiName();                return factory.PaymentInstance.Payment<T>(request);            }            catch (System.Exception e)            {                LogHelper.Error(e);                return parser.Parse(e.Message);            }        }        public SinglePaymentResponse SingleAccount(SinglePaymentAccount request)        {            return this.Execute<SinglePaymentResponse>(request, new SinglePaymentParser());        }        public SinglePaymentResponse SingleCard(SinglePaymentCard request)        {            return this.Execute<SinglePaymentResponse>(request, new SinglePaymentParser());        }        public BatchPaymentResponse BatchPayment(BatchPaymentRequest request)        {            ((IApiNameChanger)request).SetName(Consts.ApiName.BatchAccountPay);            return this.Execute<BatchPaymentResponse>(request, new BatchPaymentParser());        }        public CheckPaymentResponse ValidatePayment(BatchPaymentRequest request)        {            ((IApiNameChanger)request).SetName(Consts.ApiName.BatchAccountCheck);            return this.Execute<CheckPaymentResponse>(request, new CheckPaymentParser());        }        #endregion    }        /// <summary>        /// 服务类对象        /// </summary>        public IPaymentService PaymentInstance        {            get            {                switch (ApiName)                {                    case Consts.ApiName.SinglePay: return new SinglePaymentService();                    case Consts.ApiName.BatchAccountPay: return new BatchPaymentService();                    case Consts.ApiName.BatchAccountCheck: return new ValidateService();                }                return new NullService();            }        }/// <summary>    /// 支付服务    /// </summary>    public interface IPaymentService    {        /// <summary>        /// 付款        /// </summary>        /// <typeparam name="T"></typeparam>        /// <param name="request">请求对象</param>        /// <returns></returns>        T Payment<T>(IRequest request) where T : IResponse;    }    /// <summary>    /// Summary description for SinglePaymentService    /// </summary>    public class SinglePaymentService : IPaymentService    {        #region IPaymentService 成员        public T Payment<T>(IRequest request) where T : IResponse        {            SinglePaymentResponse response = new SinglePaymentResponse();            //.......            return response as T;        }        #endregion    }    public class ValidateService : IPaymentService    {        T IPaymentService.Payment<T>(IRequest request)        {            BatchPaymentRequest req = request as BatchPaymentRequest;            //......            return GetResponse(Consts.Success) as T;        }    }    /// <summary>    /// Summary description for BatchPaymentService    /// </summary>    public class BatchPaymentService : IPaymentService    {        /// <summary>        /// 批量付款        /// </summary>        /// <typeparam name="T"></typeparam>        /// <param name="request"></param>        /// <returns></returns>        T Payment<T>(IRequest request) where T : IResponse        {            BatchPaymentRequest batch = request as BatchPaymentRequest;            //.......            return new BatchPaymentResponse            {                RetCode = Consts.Success,                Message = "success"            } as T;        }    }    /// <summary>    /// 默认服务, 异常兼容    /// </summary>    public class NullService : IPaymentService    {        #region IPaymentService 成员        T IPaymentService.Payment<T>(IRequest request)        {            throw new NotImplementedException();        }        #endregion    } 

 

接口调用时，根据需要可以自行执行解析器、指定验证器等。