C# 无法从Apple反序列化JSON'；s iTunes流派ID服务

苹果iTunes流派ID服务返回的JSON与我过去遇到的其他JSON不同。正因为如此，我在构建反序列化所需的类时遇到了困难

下面是一个JSON示例（为了清晰起见，我将其删节；可以找到完整的JSON）：

以下是我接收数据的课程：

public class PodcastGenreResult
{
    public PodcastGenreInfo GenreInfo { get; set; }
}

public class PodcastGenreInfo
{
    [JsonProperty("name")]
    public string GenreName { get; set; }
}

下面是反序列化调用：

PodcastGenreResult result = JsonConvert.DeserializeObject<PodcastGenreResult>(sResults);

PodcastGenreResult结果=JsonConvert.DeserializeObject（sResults）；

其中，

sResults

是JSON字符串。我已确认此字符串包含正确的数据

---

在此之后，不会抛出错误，但

result.GenreInfo

始终为空。我也尝试过其他方法，但这是我认为最有效的方法。大多数情况下，我使用

JsonProperty

属性来指定我想要的对象，但我在这里不能指定，因为根名称会根据我请求的ID而改变。如何定义类以反序列化数据？

在我看来，问题在于json设计不当，使用的是类型id而不是属性名。json应该如下所示：

{"genre":{"name":"Podcasts","id":"26", ...
    "subgenres":{"genre": {"name":"Arts","id":"1301","url":

而不是：

{"26":{"name":"Podcasts","id":"26", ...
    "subgenres":{"1301":{"name":"Arts","id":"1301","url":

我会将json加载到动态对象中：

dynamic genres = new System.Web.Script.Serialization.JavaScriptSerializer().Deserialize<dynamic>(json);

dynamic genres=new System.Web.Script.Serialization.JavaScriptSerializer（）.Deserialize（json）；

---

如果需要，可以将动态对象转换为强类型对象。

这实际上相当常见。要处理键是动态的对象，需要将其反序列化到

字典中，其中
T
是您的项目类。因此，在你的情况下：

Dictionary<string, PodcastGenreInfo> genres = 
    JsonConvert.DeserializeObject<Dictionary<string, PodcastGenreInfo>>(sResults);

下面是一个工作演示：

class Program
{
    static void Main(string[] args)
    {
        using (WebClient client = new WebClient())
        {
            string url = "http://itunes.apple.com/WebObjects/MZStoreServices.woa/ws/genres?id=26";
            string json = client.DownloadString(url);
            var genres = JsonConvert.DeserializeObject<Dictionary<string, PodcastGenreInfo>>(json);
            Dump(new PodcastGenreInfo { GenreName = "Genres", Subgenres = genres }, "");
        }
    }

    private static void Dump(PodcastGenreInfo genre, string indent)
    {
        Console.WriteLine(indent + genre.GenreName);
        if (genre.Subgenres != null)
            foreach (var kvp in genre.Subgenres)
                Dump(kvp.Value, indent + "  ");
    }

    public class PodcastGenreInfo
    {
        [JsonProperty("name")]
        public string GenreName { get; set; }

        [JsonProperty("subgenres")]
        public Dictionary<string, PodcastGenreInfo> Subgenres { get; set; }
    }
}

放一些Json，这样我们就可以得到一个完整的画面。这非常有效。这也是有道理的，我从来没有使用过这条路线。谢谢，没问题；很高兴我能帮上忙。@brian rogers的回答对我有用，但我可以看出动态类型在这种情况下是多么有用。谢谢你的回复。
public class PodcastGenreInfo
{
    [JsonProperty("name")]
    public string GenreName { get; set; }

    [JsonProperty("subgenres")]
    public Dictionary<string, PodcastGenreInfo> Subgenres { get; set; }
}

class Program
{
    static void Main(string[] args)
    {
        using (WebClient client = new WebClient())
        {
            string url = "http://itunes.apple.com/WebObjects/MZStoreServices.woa/ws/genres?id=26";
            string json = client.DownloadString(url);
            var genres = JsonConvert.DeserializeObject<Dictionary<string, PodcastGenreInfo>>(json);
            Dump(new PodcastGenreInfo { GenreName = "Genres", Subgenres = genres }, "");
        }
    }

    private static void Dump(PodcastGenreInfo genre, string indent)
    {
        Console.WriteLine(indent + genre.GenreName);
        if (genre.Subgenres != null)
            foreach (var kvp in genre.Subgenres)
                Dump(kvp.Value, indent + "  ");
    }

    public class PodcastGenreInfo
    {
        [JsonProperty("name")]
        public string GenreName { get; set; }

        [JsonProperty("subgenres")]
        public Dictionary<string, PodcastGenreInfo> Subgenres { get; set; }
    }
}

Genres
  Podcasts
    Arts
      Design
      Fashion & Beauty
      Food
      Literature
      Performing Arts
      Visual Arts
    Business
      Business News
      Careers
      Investing
      Management & Marketing
      Shopping
    Comedy
    Education
      Educational Technology
      Higher Education
      K-12
      Language Courses
      Training
    Games & Hobbies
      Automotive
      Aviation
      Hobbies
      Other Games
      Video Games
    Government & Organizations
      Local
      National
      Non-Profit
      Regional
    Health
      Alternative Health
      Fitness & Nutrition
      Self-Help
      Sexuality
    Kids & Family
    Music
    News & Politics
    Religion & Spirituality
      Buddhism
      Christianity
      Hinduism
      Islam
      Judaism
      Other
      Spirituality
    Science & Medicine
      Medicine
      Natural Sciences
      Social Sciences
    Society & Culture
      History
      Personal Journals
      Philosophy
      Places & Travel
    Sports & Recreation
      Amateur
      College & High School
      Outdoor
      Professional
    TV & Film
    Technology
      Gadgets
      Podcasting
      Software How-To
      Tech News