c# - 读入 JSON 数组并转换为 IEnumerable

Question

我从未使用过 JSON 文件，但我有实现 JSON 文件的任务，我需要将其转换为 IEnumerable。当我尝试对 JSON 对象进行反序列化时，我得到一个异常，上面写着:

An unhandled exception of type 'Newtonsoft.Json.JsonSerializationException' occurred in Newtonsoft.Json.dll

Additional information: Cannot deserialize the current JSON object (e.g. {"name":"value"}) into type 'Price_Algorithm.AuctionInfo' because the type requires a JSON array (e.g. [1,2,3]) to deserialize correctly.

我的代码:

var data = File.ReadAllText(@"C:\benatia.json");
var terry = JsonConvert.DeserializeObject<IEnumerable<AuctionInfo>>(data);

public class AuctionInfo : IEnumerable
{
    public string BidState { get; set; }
    public uint BuyNowPrice { get; set; }
    public uint CurrentBid { get; set; }
    public int Expires { get; set; }
    public ItemData ItemData { get; set; }
    public uint StartingBid { get; set; }
    public string TradeState { get; set; }

    public IEnumerator GetEnumerator()
    {
        throw new NotImplementedException();
    }
}

我已经上传了 JSON 对象，所以每个人都知道整个 JSON 文件的内容:http://puu.sh/fancH/9a495ecbe9.json (新 JSON)

Answer 1

使用 json2csharp.com你应该反序列化的类应该是这样的:

public class AttributeList
{
    public int Index { get; set; }
    public int Value { get; set; }
}

public class LifeTimeStat
{
    public int Index { get; set; }
    public int Value { get; set; }
}

public class StatsList
{
    public int Index { get; set; }
    public int Value { get; set; }
}

public class ItemData
{
    public int AssetId { get; set; }
    public int Assists { get; set; }
    public List<AttributeList> AttributeList { get; set; }
    public int CardSubTypeId { get; set; }
    public int Contract { get; set; }
    public int DiscardValue { get; set; }
    public int Fitness { get; set; }
    public string Formation { get; set; }
    public object Id { get; set; }
    public int InjuryGames { get; set; }
    public string InjuryType { get; set; }
    public string ItemState { get; set; }
    public string ItemType { get; set; }
    public int LastSalePrice { get; set; }
    public int LeagueId { get; set; }
    public int LifeTimeAssists { get; set; }
    public List<LifeTimeStat> LifeTimeStats { get; set; }
    public int LoyaltyBonus { get; set; }
    public int Morale { get; set; }
    public int Owners { get; set; }
    public int PlayStyle { get; set; }
    public string PreferredPosition { get; set; }
    public int RareFlag { get; set; }
    public int Rating { get; set; }
    public int ResourceId { get; set; }
    public List<StatsList> StatsList { get; set; }
    public int Suspension { get; set; }
    public int TeamId { get; set; }
    public string Timestamp { get; set; }
    public int Training { get; set; }
    public bool Untradeable { get; set; }
    public int Pile { get; set; }
}

public class RootObject
{
    public string BidState { get; set; }
    public int BuyNowPrice { get; set; }
    public int CurrentBid { get; set; }
    public int Expires { get; set; }
    public ItemData ItemData { get; set; }
    public int Offers { get; set; }
    public string SellerEstablished { get; set; }
    public int SellerId { get; set; }
    public string SellerName { get; set; }
    public int StartingBid { get; set; }
    public object TradeId { get; set; }
    public string TradeState { get; set; }
    public object Watched { get; set; }
}

我从您发布的链接中获取了 JSON，将其放入一个文件中，然后组合了一个小控制台应用程序，该应用程序执行以下操作:

var data = File.ReadAllText("json1.json");
var auctions = JsonConvert.DeserializeObject<IEnumerable<RootObject>>(data);

这是我构建的解决方案的链接 http://1drv.ms/1ChmYYx但实际上并没有超过我已经发布的内容。

完美运行，我得到了 26 个 RootObject 实例。

如果您愿意，可以将 RootObject 重命名为其他名称。我只是直接从 json2charp 生成的内容中剪切和粘贴。