使用JSON在Restfull WCF服务中接收POST请求的多个对象

Question

将2个对象序列化为流，并将其附加到HttpWebRequest

    DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(OBJECT1));
    ser.WriteObject(stream1, controller);
    ser = new DataContractJsonSerializer(typeof(OBJECT2));
    ser.WriteObject(stream1, reader);
    stream1.position =0;

我的json字符串如下（在上面的代码之后）：{"Object1Parameter1":"2"}{"Object2Parameter1":"Added reader","Object2Parameter2":"2"}

甚至尝试将父项添加到此字符串中，名称分别为OBJECT1和OBJECT2，但仍然无法在服务器上反序列化数据。

在Rest服务接收这样的数据没有问题

[OperationContract]
        [WebInvoke(Method = "POST",
            RequestFormat = WebMessageFormat.Json,
            ResponseFormat = WebMessageFormat.Json,
            BodyStyle = WebMessageBodyStyle.Wrapped,
            UriTemplate = "Controller")]
        string AddBothObjects(/*parameters of both objects listed*/);

如何在服务端接收这两个对象中的数据，而不是单个参数中的数据。类似这样的东西：

[OperationContract]
            [WebInvoke(Method = "POST",
                RequestFormat = WebMessageFormat.Json,
                ResponseFormat = WebMessageFormat.Json,
                BodyStyle = WebMessageBodyStyle.Wrapped,
                UriTemplate = "Controller")]
            string AddBothObjects(Object1 obj1,Object2 obj2);

Answer 1

我认为当您将数据POST到WCF服务时，您应该将发送的所有数据打包到一个对象（1个请求对象）中。这是示例代码，展示了我所说的

客户：

            // declare ascii encoding
            ASCIIEncoding encoding = new ASCIIEncoding();
            string jsonObject1 = "{"Object1Parameter1":"2"}";
            string jsonObject2 = "{"Object2Parameter1":"Added reader","Object2Parameter2":"2"}";

            byte[] data = encoding.GetBytes(jsonObject1 + jsonObject2);
            string url = "http://localhost:64273/Sparql.svc/TestForStack";
            string strResult = string.Empty;
            // declare httpwebrequet wrt url defined above
            HttpWebRequest webrequest = (HttpWebRequest)WebRequest.Create(url);
            // set method as post
            webrequest.Method = "POST";
            // set content type
            webrequest.ContentType = "application/x-www-form-urlencoded";
            // set content length
            webrequest.ContentLength = data.Length;
            // get stream data out of webrequest object
            Stream newStream = webrequest.GetRequestStream();
            newStream.Write(data, 0, data.Length);
            newStream.Close();
            //Gets the response
            WebResponse response = webrequest.GetResponse();
            //Writes the Response
            Stream responseStream = response.GetResponseStream();
            StreamReader sr = new StreamReader(responseStream);
            string s = sr.ReadToEnd();

服务接口

[OperationContract]
    [WebInvoke(Method = "POST",
        UriTemplate = "TestForStack",
        RequestFormat = WebMessageFormat.Json,
        ResponseFormat = WebMessageFormat.Json,
        BodyStyle = WebMessageBodyStyle.Bare)]
    Stream TestForStack(Stream request);

服务实施

public Stream TestForStack(Stream request)
    {
        StreamReader requestReader = new StreamReader(request);
        //data contains "{"Object1Parameter1":"2"}{"Object2Parameter1":"Added reader","Object2Parameter2":"2"}"
        string data = HttpUtility.UrlDecode(requestReader.ReadToEnd());
        //Splits the two json objects into a list of json objects
        var output = data.Split(new[] { '{', '}' }, StringSplitOptions.RemoveEmptyEntries)
              .Select(x => "{" + x + "}")
              .ToList();
        //Parse your json object
        foreach (var entry in output)
        {
            var parsedObject = JsonConvert.DeserializeObject<JObject>(entry);
            foreach (var dataset in parsedObject.Properties())
            {
                Console.WriteLine(dataset.Name);
            }
        }
        byte[] htmlBytes = Encoding.UTF8.GetBytes("Done");
        return new MemoryStream(htmlBytes);
    }