Question

我正在从TheMovieDB访问API并检索包含以下信息的JSON：

JSON retrieved from API

我想将此JSON反序列化为一组模型。我有一个模型，用于定义如下的电视节目实例：

class SeriesModel : BindableBase
{
    public SeriesModel(){}

    #region Properties

    private string _backdropPath;
    public string Backdrop_Path
    {
        get { return _backdropPath; }
        set { this.SetProperty(ref this._backdropPath, value); }
    }

    private string _firstAirDate;
    public string First_Air_Date
    {
        get { return _firstAirDate; }
        set { this.SetProperty(ref this._firstAirDate, value); }
    }

    private int[] _genreIDs;
    public int[] Genre_IDs
    {
        get { return _genreIDs; }
        set { this.SetProperty(ref this._genreIDs, value); }
    }

    private int _id;
    public int ID
    {
        get { return _id; }
        set { this.SetProperty(ref this._id, value); }
    }

    private string _originalLanguage;
    public string OriginalLanguage
    {
        get { return _originalLanguage; }
        set { this.SetProperty(ref this._originalLanguage, value); }
    }

    private string _originalName;
    public string Original_Name
    {
        get { return _originalName; }
        set { this.SetProperty(ref this._originalName, value); }
    }

    private string _overview;
    public string Overview
    {
        get { return _overview; }
        set { this.SetProperty(ref this._overview, value); }
    }

    private string _originCountry;
    public string Origin_Country
    {
        get { return _originCountry; }
        set { this.SetProperty(ref this._originCountry, value); }
    }

    private string _posterPath;
    public string Poster_Path
    {
        get { return _posterPath; }
        set { this.SetProperty(ref this._posterPath, value); }
    }

    private string _popularity;
    public string Popularity
    {
        get { return _popularity; }
        set { this.SetProperty(ref this._popularity, value); }
    }

    private string _name;
    public string Name
    {
        get { return _name; }
        set { this.SetProperty(ref this._name, value); }
    }

    private string _voteAverage;
    public string Vote_Average
    {
        get { return _voteAverage; }
        set { this.SetProperty(ref this._voteAverage, value); }
    }

    private int _voteCount;

    public int Vote_Count
    {
        get { return _voteCount; }
        set { this.SetProperty(ref this._voteCount, value); }
    }

    #endregion
}

我使用Newtonsoft JSON使用以下代码对其进行反序列化：

    public async static void GetPopularSeriesCollection()
    {
        ObservableCollection<SeriesModel> seriesCollection = new ObservableCollection<SeriesModel>();
        var popularJson = await ApiHandler.GetPopularSeriesJSON();
        seriesCollection = JsonConvert.DeserializeObject<ObservableCollection<SeriesModel>>(popularJson);
    }

第二行调用以下方法，该方法返回上图中显示的json字符串：

    const string apiKey = "hidden";
    static readonly Uri baseAddress = new Uri("http://api.themoviedb.org/3/");
    static readonly HttpClient httpClient = new HttpClient { BaseAddress = baseAddress };

    public static async Task<string> GetPopularSeriesJSON()
    {
        using (httpClient)
        {
            httpClient.DefaultRequestHeaders.TryAddWithoutValidation("accept", "application/json");

            using (var response = await httpClient.GetAsync("tv/popular?api_key=" + apiKey))
                return await response.Content.ReadAsStringAsync();
        }
    }

我在JsonConvert.DeserializeObject＆lt; ...

行上收到以下错误

其他信息：无法反序列化当前的JSON对象（例如{＆＃34; name＆＃34;：＆＃34; value＆＃34;}）进入类型＆＃39; System.Collections.ObjectModel.ObservableCollection`1 [ProjectSirV.Models.SeriesModel]＆＃39; 因为该类型需要一个JSON数组（例如[1,2,3]）来反序列化正确。要修复此错误，请将JSON更改为JSON数组（例如 [1,2,3]）或更改反序列化类型，使其成为正常的.NET type（例如，不是像整数这样的基本类型，不是集合类型像数组或List一样，可以从JSON对象反序列化。 JsonObjectAttribute也可以添加到类型中以强制它从JSON对象反序列化。

这几乎是我第一次搞乱JSON API，而且我不完全确定我所做的事情是否正确。非常感谢任何帮助。

编辑：请求的原始JSON字符串

{"page":1,"results":[{"backdrop_path":"/98MkbBwdbw9xfmxJlYlBWqu6xZZ.jpg","first_air_date":"2015-06-14","genre_ids":[18,878],"id":62822,"original_language":"en","original_name":"Humans","overview":"In a parallel present where the latest must-have gadget for any busy family is a 'Synth' - a highly-developed robotic servant that's so similar to a real human it's transforming the way we live.","origin_country":["GB","US"],"poster_path":"/gJCyS65ieDT827F2NR9Nx9ZLuw5.jpg","popularity":34.850585,"name":"Humans","vote_average":9.4,"vote_count":6},{"backdrop_path":"/aKz3lXU71wqdslC1IYRC3yHD6yw.jpg","first_air_date":"2011-04-17","genre_ids":[10765,18],"id":1399,"original_language":"en","original_name":"Game of Thrones","overview":"Seven noble families fight for control of the mythical land of Westeros. Friction between the houses leads to full-scale war. All while a very ancient evil awakens in the farthest north. 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Answer 1

要反序列化的集合不在根级别，它位于“results”属性中：

seriesCollection = JObject.Parse(popularJson)["results"]
    .ToObject<ObservableCollection<SeriesModel>>();

试图反序列化TheMovieDB JSON

1 个答案: