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我正在尝试反序列化从 Asana API 中的 users/me 调用中获取的数据，如下所示，但该对象为 jsonResponse var 中的所有属性返回 null。数据就在那里——如果我以纯文本的形式阅读它，我可以看到它。我还尝试使用 [JsonProperty("id")] 属性而不是 [DataMember] 与 JsonSerializer 而不是 DataContractJsonSerializer 一起使用，但我得到一个异常：“无法转换类型为 'Newtonsoft.Json.Linq.JObject ' 输入 'Data2'。”

我究竟做错了什么？

注意：我一直在使用Xamasoft JSON Class Generator创建类；请参阅 GetUser 方法下方的类。

        public AsanaObjects.Data2 GetUser()
    {
        AsanaObjects.Data2 result = null;
        string url = "https://app.asana.com/api/1.0/users/me";

        try
        {
            var uri = new Uri(url);
            ServicePointManager.ServerCertificateValidationCallback = new System.Net.Security.RemoteCertificateValidationCallback(CertificateCheck);
            //ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls | SecurityProtocolType.Ssl3;
            //Must use Tls12 or else exception: "The underlying connection was closed: An unexpected error occurred on a send." InnerException = {"Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host."}
            ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;

            var webRequest = (HttpWebRequest)WebRequest.Create(uri);
            webRequest.Timeout = 10000;
            webRequest.Method = "GET"; webRequest.ContentType = "application/x-www-form-urlencoded";
            webRequest.Accept = "application/json";
            //webRequest.UseDefaultCredentials = true; //doesn't seem to make a difference
            webRequest.Headers.Add("Authorization", "Bearer " + AsanaBroker.Properties.Settings.Default.AccessToken);

            using (var response = webRequest.GetResponse())
            {
                //using (var responseStream = ((HttpWebResponse)response).GetResponseStream())
                //{
                //    if (responseStream != null)
                //    {
                //        var reader = new System.IO.StreamReader(responseStream);
                //        string readerText = reader.ReadToEnd();
                //        //Example return data: {"data":{"id":12343281337970,"name":"Eric Legault","email":"eric@foo.com","photo":null,"workspaces":[{"id":1234250096894,"name":"foo"},{"id":123446170860,"name":"Personal Projects"},{"id":12345000597911,"name":"foo2"}]}}
                //    }
                //}
                using (var responseStream = ((HttpWebResponse)response).GetResponseStream())
                {
                    if (responseStream != null)
                    {
                        try
                        {
                            AsanaObjects.Data2 jsonResponse = null;
                            var jsonSerializer = new DataContractJsonSerializer(typeof(AsanaObjects.Data2));
                            jsonResponse = jsonSerializer.ReadObject(responseStream) as AsanaObjects.Data2;

                            if (jsonResponse != null)
                            {
                                result = jsonResponse;
                            }
                        }
                        catch (Exception ex)
                        {
                            Log.Error(ex);
                        }
                    }
                }
            }
        }
        catch (Exception ex)
        {
        }

        return result;
    }

这是我试图反序列化的类（抱歉最初的未格式化部分 - 不知道如何修复）：

公共部分类 AsanaObjects { [DataContract] 公共类工作区 { [DataMember] 公共对象 id { 获取；放; }

        [DataMember]
        public string name { get; set; }
    }
}

public partial class AsanaObjects
{
    [DataContract]
    public class Data2
    {
        [DataMember]
        public long id { get; set; }

        [DataMember]
        public string name { get; set; }

        [DataMember]
        public string email { get; set; }

        [DataMember]
        public object photo { get; set; }

        [DataMember]
        public Workspace[] workspaces { get; set; }
    }
}

public partial class AsanaObjects
{
    [DataMember]
    public Data2[] data { get; set; }
}
4

1 回答 1

1
  1. data不是数组。在您的示例中，它是一个对象。
  2. 您希望在根、AsanaObjects类上反序列化，而不是在类的下data一级。
  3. 我还不得不[DataContract]在根AsanaObjects类上抛出一个

以下工作并返回一个完整的对象：

using System.IO;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Json;
using System.Text;

namespace ConsoleApplication1
{
    class Program
    {
        const string Json = @"{""data"":{""id"":12343281337970,""name"":""Eric Legault"",""email"":""eric@foo.com"",""photo"":null,""workspaces"":[{""id"":1234250096894,""name"":""foo""},{""id"":123446170860,""name"":""Personal Projects""},{""id"":12345000597911,""name"":""foo2""}]}}";
        static void Main(string[] args)
        {
            var theReturn = DeserializeJson(Json);
        }

        private static  AsanaObjects DeserializeJson(string json) {
            var jsonSerializer = new DataContractJsonSerializer(typeof(AsanaObjects));
            var stream = new MemoryStream(Encoding.UTF8.GetBytes(json));

            return jsonSerializer.ReadObject(stream) as AsanaObjects;
        }

        public partial class AsanaObjects
        {
            [DataContract]
            public class Workspace
            {
                [DataMember]
                public object id { get; set; }

                [DataMember]
                public string name { get; set; }
            }
        }

        public partial class AsanaObjects
        {
            [DataContract]
            public class Data2
            {
                [DataMember]
                public long id { get; set; }

                [DataMember]
                public string name { get; set; }

                [DataMember]
                public string email { get; set; }

                [DataMember]
                public object photo { get; set; }

                [DataMember]
                public Workspace[] workspaces { get; set; }
            }
        }

        [DataContract]
        public partial class AsanaObjects
        {
            [DataMember]
            public Data2 data { get; set; }
        }
    }
}
于 2016-10-07T00:42:36.013 回答