C＃从随机密钥开始排序使用Facebook JSON [英] C# Deserialize Facebook JSON starting with random key

问题描述

你还是一个newb（学生）到C＃，我想知道如何反序列化这种JSON数据（使用JsonConvert和一个模型类）

JSON示例：

  {
435321729828514：{
id：435321729828514，
 name：Kursaal Oostende
}，
56302776046：{
id：56302776046，
name：Caf\\\é Charlatan 
} 
} 
  

资料库类：

  public class FB 
 {
 public async static任务< FBModel> Entries（string id）
 {
 using（var client = new HttpClient（））
 {
 client.BaseAddress = new Uri（@https：//graph.facebook。 COM / V2.8 /）; 
 HttpResponseMessage response = await client.GetAsync（？ids =+ ids +& fields = id，name& access_token = secret_token）; 
 if（response.IsSuccessStatusCode）
 {
 string s = await response.Content.ReadAsStringAsync（）; 
 FBModel entries = JsonConvert.DeserializeObject< FBModel>（s）; 
返回条目; 
} 
 else 
返回null; 
} 
} 
} 
  

型号：

  public class FBModel 
 {
 public string ID {get;组; } 
 public string Name {get;组; } 
 
 public override string ToString（）
 {
返回ID +：+名称; 
} 
} 
  

MainPage.xaml（call）：

  private static FBModel _entries; //全局变量
 // ... 
 _entries = await FB.Entries（ids_to_pass）; 
  

---------已解决（型号）----- -----

  public class FBModel 
 {
 #region properties 
 public string Id {get;组; } 
 public string Name {get;组; } 
 public Events事件{get;组; } 
 #endregion 
} 
 public class Events 
 {
 #region props 
 public List< Datum>数据{get;组; } 
 public Paging Paging {get;组; 
 #endregion 
} 
 
 public class Datum 
 {
 #region props 
 public string Description {get;组; } 
 public string End_time {get;组; } 
 public string Name {get;组; } 
 public Place Place {get;组; } 
 public string Start_time {get;组; } 
 public string Id {get;组; 
 #endregion 
} 
 
 public class Place 
 {
 #region props 
 public string Id {get;组; } 
 public string Name {get;组; } 
 public Location Location {get;组; } 
 #endregion 
} 
 
 public class Location 
 {
 #region props 
 public string City {get;组; } 
 public string国家{get;组; } 
 public double Latitude {get;组; } 
 public double Longitude {get;组; } 
 public string Street {get;组; } 
 public string Zip {get;组; 
 #endregion 
} 
 
 #region不重要
 public class Paging 
 {
 #region props 
 public Cursors游标{get;组; } 
 public string Next {get;组; 
 #endregion 
} 
 
 public class Cursors 
 {
 #region props 
 public string Before {get;组; } 
 public string {get;组; } 
 #endregion 
} 
  

------ - 已解决（完整的JSON）----------

  {
 435321729828514：{
id：435321729828514，
name：Kursaal Oostende，
events：{
data：[
 {
description：CHRISTOFF，...，
end_time：2017-11-25T23：00：00 + 0100，
name： 
place：{
name：Kursaal Oostende，
location：{
city：Oostende，
country：比利时，
纬度：51.2312299，
longitude：2.9126599，
st reet：Westhelling 12，
zip：8400
}，
id：435321729828514
}，
start_time 2017-11-25T20：00：00 + 0100，
id：161310354323914
} 
]，
分页：{
 $$$
，
next：https：//graph.facebook：$$$$$$$ COM / V2.8 / 435321729828514 /事件=的access_token&EAAH2ZAZAq846IBAM9ZAX0LWpDxlzFaPr8jNOxDct2tZBw7YJAtnYxIlVud67hiXI51ybmhLcz4AhMtiVxZBBcPixx9wB9ntF1ZBRhSIuSxeUu83mg6tZBc0BseLpdmkWuu7bohQxXvvLUe67pjETnqDOj8PzFZAXHHAyqEqYrWOXvAZDZD\\\%22放大器;漂亮= 1&安培;限额= 1&放大器;后= MTYxMzEwMzU0MzIzOTE0\" 
} 
} 
 
} 
  

--------已解决（存储库） ---------

  public async static任务<列表&FBModel>> Entries（string id）
 {
 using（var client = new HttpClient（））
 {
 client.BaseAddress = new Uri（@https：//graph.facebook。 COM / V2.8 /）; 
 HttpResponseMessage response = await client.GetAsync（？ids =+ ids +& fields = id，name，events.limit（60）& access_token = secret_token）; 
 if（response.IsSuccessStatusCode）
 {
 string s = await response.Content.ReadAsStringAsync（）; 
 var entries = JsonConvert.DeserializeObject< Dictionary< string，FBModel>>（s）; 
列表< FBModel> data = entries.Select（item => item.Value）.ToList（）; 
返回数据; 
} 
 else 
返回null; 
} 
} 
  

解决方案

是你要做的。

步骤1：将json转换为字典。

  var dataDictionary = JsonConvert.DeserializeObject< Dictionary< string，FBModel>>（yourJsonstring）; 
  

步骤2：然后获取对象列表

 列表< FBModel> data = new List< FBModel>（）; 
 foreach（dataDictionary中的var item）
 {
 data.Add（item.Value）; 
} 
  

步骤2可以作为一个linq查询完成

 列表< FBModel> data = dataDictionary.Select（item => item.Value）.ToList（）; 
  

更新
您的类结构应如下所示事件数据。

  public class FBModel 
 {
 public string ID {get;组; } 
 public string Name {get;组; } 
 public Events事件{get;组; } 
 
 public override string ToString（）
 {
返回ID +：+名称; 
} 
} 
 
 public class Events 
 {
 public List< Data>数据{get;组; } 
} 
 
 
 
 public class Data 
 {
 public string Description {get;组; } 
 public string End_Time {get;组; } 
 public string Name {get;组; } 
 public Place Place {get;组; } 
 public string Start_Time {get;组; } 
 public string Id {get;组; 
} 
 
 public class Place 
 {
 public string Name {get;组; } 
 public Location Location {get;组; 
} 
 
 public class Location 
 {
 public string City {get;组; } 
 public string国家{get;组; } 
 public string Latitude {get;组; } 
 public string Longitude {get;组; } 
 public string Street {get;组; } 
 public string Zip {get;组; 
} 
  

Hello still a newb (student) to C#, I was wondering how to deserialize this kind of JSON data (with JsonConvert and a model class)

JSON example:

            {
               "435321729828514": {
                  "id": "435321729828514",
                  "name": "Kursaal Oostende"
               },
               "56302776046": {
                  "id": "56302776046",
                  "name": "Caf\u00e9 Charlatan"
               }
            }

Repository class:

        public class FB
        {
            public async static Task<FBModel> Entries(string ids)
            {
                using (var client = new HttpClient())
                {
                    client.BaseAddress = new Uri(@"https://graph.facebook.com/v2.8/");
                    HttpResponseMessage response = await client.GetAsync("?ids="+ ids +"&fields=id,name&access_token=secret_token");
                    if (response.IsSuccessStatusCode)
                    {
                        string s = await response.Content.ReadAsStringAsync();
                        FBModel entries = JsonConvert.DeserializeObject<FBModel>(s);
                        return entries;
                    }
                    else
                        return null;
                }
            }
        }

Model:

        public class FBModel
        {
            public string ID { get; set; }
            public string Name { get; set; }

            public override string ToString()
            {
                return ID + ": " + Name;
            }
        }

MainPage.xaml (call):

        private static FBModel _entries; // global variable
        // ...
        _entries = await FB.Entries(ids_to_pass);

--------- Solved (model) ----------

            public class FBModel
            {
                #region properties
                public string Id { get; set; }
                public string Name { get; set; }
                public Events Events { get; set; }
                #endregion
            }
            public class Events
            {
                #region props
                public List<Datum> Data { get; set; }
                public Paging Paging { get; set; }
                #endregion
            }

            public class Datum
            {
                #region props
                public string Description { get; set; }
                public string End_time { get; set; }
                public string Name { get; set; }
                public Place Place { get; set; }
                public string Start_time { get; set; }
                public string Id { get; set; }
                #endregion
            }

            public class Place
            {
                #region props
                public string Id { get; set; }
                public string Name { get; set; }
                public Location Location { get; set; }
                #endregion
            }

            public class Location
            {
                #region props
                public string City { get; set; }
                public string Country { get; set; }
                public double Latitude { get; set; }
                public double Longitude { get; set; }
                public string Street { get; set; }
                public string Zip { get; set; }
                #endregion
            }

            #region not important
            public class Paging
            {
                #region props
                public Cursors Cursors { get; set; }
                public string Next { get; set; }
                #endregion
            }

            public class Cursors
            {
                #region props
                public string Before { get; set; }
                public string After { get; set; }
                #endregion
            }

-------- Solved (complete JSON) ----------

        {
           "435321729828514": {
              "id": "435321729828514",
              "name": "Kursaal Oostende",
              "events": {
                 "data": [
                    {
                       "description": "CHRISTOFF, ...",
                       "end_time": "2017-11-25T23:00:00+0100",
                       "name": "Vrienden Voor Het Leven",
                       "place": {
                          "name": "Kursaal Oostende",
                          "location": {
                             "city": "Oostende",
                             "country": "Belgium",
                             "latitude": 51.2312299,
                             "longitude": 2.9126599,
                             "street": "Westhelling 12",
                             "zip": "8400"
                          },
                          "id": "435321729828514"
                       },
                       "start_time": "2017-11-25T20:00:00+0100",
                       "id": "161310354323914"
                    }
                 ],
                 "paging": {
                    "cursors": {
                       "before": "MTYxMzEwMzU0MzIzOTE0",
                       "after": "MTYxMzEwMzU0MzIzOTE0"
                    },
                    "next": "https://graph.facebook.com/v2.8/435321729828514/events?access_token=EAAH2ZAZAq846IBAM9ZAX0LWpDxlzFaPr8jNOxDct2tZBw7YJAtnYxIlVud67hiXI51ybmhLcz4AhMtiVxZBBcPixx9wB9ntF1ZBRhSIuSxeUu83mg6tZBc0BseLpdmkWuu7bohQxXvvLUe67pjETnqDOj8PzFZAXHHAyqEqYrWOXvAZDZD\u002522&pretty=1&limit=1&after=MTYxMzEwMzU0MzIzOTE0"
                 }
              }
           }
        }

-------- Solved (Repository) ---------

            public async static Task<List<FBModel>> Entries(string ids)
            {
                using (var client = new HttpClient())
                {
                    client.BaseAddress = new Uri(@"https://graph.facebook.com/v2.8/");
                    HttpResponseMessage response = await client.GetAsync("?ids="+ ids +"&fields=id,name,events.limit(60)&access_token=secret_token");
                    if (response.IsSuccessStatusCode)
                    {
                        string s = await response.Content.ReadAsStringAsync();
                        var entries = JsonConvert.DeserializeObject<Dictionary<string, FBModel>>(s);
                        List<FBModel> data = entries.Select(item => item.Value).ToList();
                        return data;
                    }
                    else
                        return null;
                }
            }

解决方案

This is what you have to do.

Step 1: Convert your json to Dictionary.

 var dataDictionary = JsonConvert.DeserializeObject<Dictionary<string, FBModel>>(yourJsonstring);

Step 2: Then get list of object

        List<FBModel> data=new List<FBModel>();
        foreach (var item in dataDictionary)
        {
           data.Add(item.Value);
        }

Step 2 can be done as a linq query

List<FBModel> data= dataDictionary.Select(item => item.Value).ToList();

Update your class structure should be like below to access the event data.

public class FBModel
{
    public string ID { get; set; }
    public string Name { get; set; }
    public Events Events { get; set; }

    public override string ToString()
    {
        return ID + ": " + Name;
    }
}

public class Events
{
    public List<Data> Data { get; set; }
}



 public class Data
{
    public string Description { get; set; }
    public string End_Time { get; set; }
    public string Name { get; set; }
    public Place Place { get; set; }
    public string Start_Time { get; set; }
    public string Id { get; set; }
}

public class Place
{
    public string Name { get; set; }
    public Location Location { get; set; }
}

public class Location
{
    public string City { get; set; }
    public string Country { get; set; }
    public string Latitude { get; set; }
    public string Longitude { get; set; }
    public string Street { get; set; }
    public string Zip { get; set; }
}

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