Question

所以我是一名自学成才的C＃程序员。我所知道的关于C＃的一切都来自于在学校学习Java并将其应用于C＃。我对类的了解不是很好，使用JSON数据几乎完全没有。所以我有这个JSON数据，我从HttpWebClient下拉，然后使用JSON.NET反序列化它。我使用json2csharp类生成器作为类结构。但是，我相信，我错过了一个步骤，导致对象只为所有内容都为null。

示例JSON数据 https://github.com/justintv/Twitch-API/blob/master/v3_resources/games.md获取/游戏/热门示例数据

我的代码

var client = new HttpClient();
var url = new Uri("https://api.twitch.tv/kraken/games/top");
client.DefaultRequestHeaders.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("application/vnd.twitchtv.v3+json"));
var response = await client.GetAsync(url);
var content = await response.Content.ReadAsStringAsync();
TwitchReturn objectHolder = JsonConvert.DeserializeObject<TwitchReturn>(content);
Console.WriteLine(objectHolder);

^这应该有objectHolder.top [0] .game.name;我只是不知道如何访问它。

Twitch Return Class

class TwitchReturn
{
    public class Links
    {
        public string self { get; set; }
        public string next { get; set; }
    }

    public class Box
    {
        public string large { get; set; }
        public string medium { get; set; }
        public string small { get; set; }
        public string template { get; set; }
    }

    public class Logo
    {
        public string large { get; set; }
        public string medium { get; set; }
        public string small { get; set; }
        public string template { get; set; }
    }

    public class Links2
    {
    }

    public class Game
    {
        public string name { get; set; }
        public int _id { get; set; }
        public int giantbomb_id { get; set; }
        public Box box { get; set; }
        public Logo logo { get; set; }
        public Links2 _links { get; set; }
    }

    public class Top
    {
        public int viewers { get; set; }
        public int channels { get; set; }
        public Game game { get; set; }
    }

    public class RootObject
    {
        public int _total { get; set; }
        public Links _links { get; set; }
        public List<Top> top { get; set; }
    }

}

我确信我所犯的错误来自该课程和控制台声明，我只是不知道这样做。虽然我知道这很可能非常简单。

Answer 1

只有当.Net Entity与传入的JSON数据明确匹配时，才能实现JSON到.NET对象的反序列化。在这里，您不必创建嵌套类，而是必须创建TwitchReturn类，并根据数据决定属性以及是否将是集合。

class TwitchReturn
{
    public Links _links { get; set; }
    public IEnumerable<Top> top { get; set; }
    public RootObject rootObject { get; set; }
}

public class Links
{
    public string self { get; set; }
    public string next { get; set; }
}

public class Box
{
    public string large { get; set; }
    public string medium { get; set; }
    public string small { get; set; }
    public string template { get; set; }
}

public class Logo
{
    public string large { get; set; }
    public string medium { get; set; }
    public string small { get; set; }
    public string template { get; set; }
}

public class Links2
{
}

public class Game
{
    public string name { get; set; }
    public int _id { get; set; }
    public int giantbomb_id { get; set; }
    public Box box { get; set; }
    public Logo logo { get; set; }
    public Links2 _links { get; set; }
}

public class Top
{
    public int viewers { get; set; }
    public int channels { get; set; }
    public Game game { get; set; }
}

public class RootObject
{
    public int _total { get; set; }
    public Links _links { get; set; }
    public List<Top> top { get; set; }
}

C＃Twitch类总是存储空

1 个答案: