Question

我正在尝试反序列化以下JSON数据：

{
  "bids": [
    [
      "392031.00000000",
      "0.00254444"
    ],
    [
      "390000.00000000",
      "0.52917503"
    ],
     ......
    ],

   "asks": [
    [
      "392999.00000000",
      "1.00000000"
    ],
    [
      "393000.00000000",
      "0.31572236"
    ],
    .....
    ]
}

我已经研究了this one这样的类似问题，但是我没有得到接近的结果，并且还注意到在那个问题中JSON的结构并不相似。

我的反序列化代码如下

public class OrderBookElement
{
    // I've also tried below commented code
    //[JsonProperty(PropertyName = "0")]
    //public double price { get; set; }

    //[JsonProperty(PropertyName = "1")]
    //public double volume { get; set; }

    List<double> values;
}
public class OrderBookResponse
{
    [JsonProperty(PropertyName = "bids")]
    List<OrderBookElement> bids { get; set; }
    [JsonProperty(PropertyName = "asks")]
    List<OrderBookElement> asks { get; set; }
}

以下是我用于反序列化的代码

var ordBook = JsonConvert.DeserializeObject<OrderBookResponse>(jsonResponse);

这给了我错误：

Cannot deserialize the current JSON array (e.g. [1,2,3]) into type 'RestAPI.OrderBookElement' because the type requires a JSON object (e.g. {"name":"value"}) to deserialize correctly.
To fix this error either change the JSON to a JSON object (e.g. {"name":"value"}) or change the deserialized type to an array or a type that implements a collection interface (e.g. ICollection, IList) like List<T> that can be deserialized from a JSON array. JsonArrayAttribute can also be added to the type to force it to deserialize from a JSON array.

Answer 1

您展示的JSON将代表：

public class OrderBookResponse
{
    [JsonProperty("bids")]
    public List<List<string>> Bids { get; set; }

    [JsonProperty("asks")]
    public List<List<string>> Asks { get; set; }
}

JSON中的bids和asks属性都只是字符串数组的数组。

我建议反序列化到与JSON匹配的模型，然后将其转换为更有用的模型。可能可以将属性应用到您的类中以说服Json.NET做您想做的事情，但我倾向于认为当时存在重大差异（而不仅仅是属性名称）），值得将两个模型分开，一个用于序列化，另一个用于代码的其余部分。

无法将当前JSON数组反序列化为类型

1 个答案: