將複雜的json對象反序列化爲自定義數據模型c＃

Question

我在將json數據轉換爲C＃中的自定義模型時遇到了困難。 JSON數據具有這樣的結構象下面這樣：

{ 
    "id": "100002231955291", 
    "albums": { 
    "data": [ 
     { 
     "id": "103570756393989", 
     "name": "xyz", 
     "photos": { 
     "data": [ 
      { 
        "id": "707563939dsf89", 
        "picture": "htp:// ssdsome data" 
      }, 
      { 
        "id": "7075dfsd6393989", 
        "picture": "htp:// ssdsome data" 
      }, 
............ 
..................... .. and so on ...... 

我試圖代碼反序列化上述JSON數據：

var parsed = JsonConvert.DeserializeObject<FacebookModel>(data.ToString()); 

但問題是rootObject還含有一些JSON數組，這是不能轉換（反序列化）。我的模型（POCO類）是：

public class FacebookModel 
     { 
      public string id { get; set; } 
      List<AlbumModel> albums { get; set; } 
     } 

     public class AlbumModel 
     { 
      public string id { get; set; } 
      public string name { get; set; } 
      public List<PictureModel> photos { get; set; } 
     } 

     public class PictureModel 
     { 
      public string id { get; set; } 
      public string picture { get; set; } 
     } 

錯誤：

Cannot deserialize the current JSON object (e.g. {"name":"value"}) into type 'System.Collections.Generic.List`1[Bricks.Common.CustomModels.PictureModel]' because the type requires a JSON array (e.g. [1,2,3]) to deserialize correctly. 
To fix this error either change the JSON to a JSON array (e.g. [1,2,3]) or change the deserialized type so that it is a normal .NET type (e.g. not a primitive type like integer, not a collection type like an array or List<T>) that can be deserialized from a JSON object. JsonObjectAttribute can also be added to the type to force it to deserialize from a JSON object. 

任何幫助，將不勝感激。謝謝

Answer 1

albums和photos實際上是對象而不是數組。

喜歡的東西：

public class FacebookModel 
{ 
    public string id { get; set; } 
    public AlbumModel albums { get; set; } 
} 

public class AlbumModel 
{ 
    public List<AlbumData> data {get;set;} 
} 

public class AlbumData 
{ 
    public string id { get; set; } 
    public string name { get; set; } 
    public PictureModel photos { get; set; } 
} 

public class PictureModel 
{ 
    public List<PictureData> data {get;set;} 
} 

public class PictureData 
{ 
    public string id { get; set; } 
    public string picture { get; set; } 
} 

等。

Answer 2

此方法將任何複雜的物體上工作：

示例用法：
VAR complexObject = GetObjectFromJson <YourComplexObject>（jsonString的typeof（YourComplexObject））;

using System.Runtime.Serialization.Json; 

    public static T GetObjectFromJson<T>(string jsonString, Type type) 
    { 
     var dcSerializer = new DataContractJsonSerializer(type); 
     using (var stream = new MemoryStream(Encoding.UTF8.GetBytes(jsonString))) 
     { 
      return (T)dcSerializer.ReadObject(stream); 
     } 
    }