接口类的序列化和反序列化

对接口类型的属性显式应用转换器

public class IOrderMerchs
{
    ......
}

public class OrderMerchs : IOrderMerchs
{
    ......
}


public class Order
{
    public string OrderId { get; set; }
    public string OrderSn { get; set; }

    // 显示指定转换器
    [JsonConverter(typeof(OrderMerchsJsonConverter<OrderMerchs>))]
    public List<IMerchs> MerchList { get; set; }
}

public class OrderMerchsJsonConverter<T> : JsonConverter
{
　　public override bool CanConvert(Type objectType)
　　{
　　　　return true;
　　}

　　public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
　　{
　　　　return serializer.Deserialize<T>(reader);
　　}

　　public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
　　{
　　    serializer.Serialize(writer, value);
　　}
}