我如何从C＃返回JSON，但删除响应D：null

Question

如何从我的服务响应中删除d：null？ 我尝试了许多选项，它继续返回值d：null，我不知道该怎么做来解决问题，

我添加了我的c＃代码，我的web.config的配置以及服务的响应，您可以看到正确的响应：200，但它继续添加值D：null

[WebMethod]
        [OperationContract]
        [WebInvoke(Method = "POST", RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json, BodyStyle = WebMessageBodyStyle.WrappedRequest)]

        public void test(string numberDoc)
        {
            if (!inicializo) inicializa();
            string resp = "200";
            WebException webException = null;
            JavaScriptSerializer js = new JavaScriptSerializer();
            Context.Response.Clear();
            // Context.Response.ContentType = "application/json";
            Response des = new Response();
            des.response = resp;


            Context.Response.Write(js.Serialize(des));
        }


<system.serviceModel>
        <behaviors>
            <endpointBehaviors>
                <behavior name="DebugJSonBehavior" >
                    <enableWebScript />
                    <!--need set automaticFormatSelectionEnabled attribute -->
                    <webHttp automaticFormatSelectionEnabled="true" />
                </behavior>
            </endpointBehaviors>
            <serviceBehaviors>
                <behavior name="DebugJSonBehavior" >
                    <serviceMetadata httpGetEnabled="true" />
                    <serviceDebug httpHelpPageEnabled="true" includeExceptionDetailInFaults="true" />
                </behavior>
            </serviceBehaviors>
        </behaviors>

    </system.serviceModel>

这是我调用Postman服务的响应 { “响应”：“ 200” } { “ D”：空 }

谢谢

Answer 1

这是我的解决方案

        [ScriptMethod(UseHttpGet = false, ResponseFormat = ResponseFormat.Json)]
        public void test(string number)
        {
          
        
            WebException webException = null;

            var js = new System.Web.Script.Serialization.JavaScriptSerializer();
            Resultres = new Result();
            res.response = "ok";
            HttpContext.Current.Response.Clear();
            HttpContext.Current.Response.ContentType = "application/json; charset=utf-8";
            HttpContext.Current.Response.Write(js.Serialize(res));
            HttpContext.Current.Response.Flush();
            HttpContext.Current.Response.End();
        }

Answer 2

使用此代码，它将返回我在映像中看到的内容，其中d：null在响应末尾添加了postman

 [WebMethod]
        [ScriptMethod(UseHttpGet = false, ResponseFormat = ResponseFormat.Json)]
        public void test(string numberDoc)
        {
            if (!inicializo) inicializa();
            string resp = "200";
            WebException webException = null;
       
            Context.Response.Clear();
            // Context.Response.ContentType = "application/json";
            Response des = new Response();
            des.response = resp;

            Response res = new Response();
            res.response = "Apple";
            string json = JsonConvert.SerializeObject(res);
            Context.Response.Write(json);
        }

现在返回一个字符串邮递员在响应中包括d，而我不don' t知道如何删除D：

 [WebMethod]
        [ScriptMethod(UseHttpGet = false, ResponseFormat = ResponseFormat.Json)]
        public string test(string numberDoc)
        {
            if (!inicializo) inicializa();
            string resp = "200";
            WebException webException = null;
       
            Context.Response.Clear();
            // Context.Response.ContentType = "application/json";
            Response des = new Response();
            des.response = resp;

            Response res = new Response();
            res.response = "Apple";
            string json = JsonConvert.SerializeObject(res);
            return json;
            //Context.Response.Write(json);
        }

响应邮递员

Answer 3

[WebMethod]
    [ScriptMethod(UseHttpGet = false, ResponseFormat = ResponseFormat.Json)]

    public void Locations(string Location)
    {
        JavaScriptSerializer Js = new JavaScriptSerializer();
        Context.Response.Clear();
        Context.Response.ContentType = "application/json";
        
        Query = "Select xxxx";
        DataTable Dt = Func.GetDataTable(Query);

        if (Dt.Rows.Count == 0)
        {
            LocationsCs Data = new LocationsCs();
            Data.Id = "0";
            Data.Location = "0";
            Context.Response.Write(Js.Serialize(Data));
        }
        else
        {
            List<LocationsCs> Locations = new List<LocationsCs>();
            for (int i = 0; i < Dt.Rows.Count; i++)
            {
                Locations.Add(new LocationsCs
                {
                    Id = Dt.Rows[i]["Id"].ToString(),
                    Location = Dt.Rows[i]["Location"].ToString(),
                });
            }
            //string  strResponse = Js.Serialize(Data);
            HttpContext.Current.Response.Clear();
            HttpContext.Current.Response.ContentType = "application/json; charset=utf-8";
            HttpContext.Current.Response.Write(Js.Serialize(Locations));
            HttpContext.Current.Response.Flush();
            HttpContext.Current.Response.End();
        }
    }

    public class LocationsCs
    {
        public String Id;
        public String Location;
    }

这对我有用。

Answer 4

 this is  works for me also.

 ResponseError err = new ResponseError();
   List<ResponseError> errorDetails = new List<ResponseError>();
   public class ResponseError
    {
        //public List<ErrorDetails> Error { get; set; }
        public string ErrorCode { get; set; }
        public string ErrorMessage { get; set; }
        public string ISACTicketNumber { get; set; }
    }
       errorDetails.Add(err);

            
            var outputJson = err;
JavaScriptSerializer Js = new JavaScriptSerializer();
            var jresp = JsonConvert.SerializeObject(outputJson, Formatting.Indented);
            HttpContext.Current.Response.Clear();
            HttpContext.Current.Response.ContentType ="application/json; charset=utf-8";
            HttpContext.Current.Response.Write(Js.Serialize(outputJson));
            HttpContext.Current.Response.Flush();
            HttpContext.Current.Response.SuppressContent = true;
            HttpContext.Current.ApplicationInstance.CompleteRequest();
            //HttpContext.Current.Response.End();
           
            return outputJson;