Json一个key有多种数据类型情况的处理

描述的语言，暂且搁置。备忘。

{
“itemList”: [{
“data”: {
“cover”: {
“feed”: “http://img.kaiyanapp.com/5186fe44e2e90bb0013cc86b9808b710.png?imageMogr2/quality/60/format/jpg",
“detail”: “http://img.kaiyanapp.com/5186fe44e2e90bb0013cc86b9808b710.png?imageMogr2/quality/60/format/jpg",
“blurred”: “http://img.kaiyanapp.com/81fc3c98ac4dcbc6c955cf3b1805f051.jpeg?imageMogr2/quality/60/format/jpg",
“sharing”: null,
“homepage”: null
}
}
},
{
“data”: {
“cover”: “http://img.kaiyanapp.com/3bc8837d3320684bbc3607b82ff94761.jpeg?imageMogr2/quality/60/format/jpg"
}
}
]
}

1 2	[JsonConverter(typeof(CoverConverter))] public Cover cover { get; set; }

public class CoverConverter : JsonConverter
{
public override bool CanConvert(Type objectType) => false;

    private Cover ParseValue(JToken value)
    {
        switch (value.Type)
        {
            case JTokenType.Object:
                return value.ToObject<Cover>();

            default:
                return null;
        }
    }

    public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
    {
        switch (reader.TokenType)
        {
            case JsonToken.StartObject:
                return ParseValue(JToken.Load(reader));

            default:
                return null;
        }
    }

    public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
    {
        throw new NotImplementedException();
    }
}

参考文章：Deserialize JSON-File with multiple datatypes for a key