wcf message 返回统一格式的json

// 

// 接口部分
        [OperationContract]
        [WebInvoke(Method = "POST", BodyStyle = WebMessageBodyStyle.WrappedRequest, ResponseFormat = WebMessageFormat.Json, RequestFormat = WebMessageFormat.Json)]
        Message Msg(Message msg);


        [OperationContract]
        [WebInvoke(Method = "GET", BodyStyle = WebMessageBodyStyle.WrappedRequest, ResponseFormat = WebMessageFormat.Json, RequestFormat = WebMessageFormat.Json)]
        Message MsgGet();


// 接口实现
        // post
        public Message Msg(Message msg)
        {
            Stream stream = msg.GetBody<Stream>();
            StreamReader sr = new StreamReader(stream);
            string sResult = sr.ReadToEnd();
            NameValueCollection nvc = HttpUtility.ParseQueryString(sResult);
            string name = nvc["name"];
            //return WebOperationContext.Current.CreateJsonResponse<object>(new { name = name, code = 200 }, new System.Runtime.Serialization.Json.DataContractJsonSerializer(typeof(object)));
            return WebOperationContext.Current.CreateTextResponse(JsonConvert.SerializeObject(new { name = name, code = 200 }));
        }

        // get
        public Message MsgGet()
        {
            string name = HttpContext.Current.Request["name"];
            return WebOperationContext.Current.CreateTextResponse(JsonConvert.SerializeObject(new { name = name, code = 200 }));
        }

// 前端返回结果
{"name":"1324134134134","code":200}