它可以序列化(通过插入自定义__type属性)
public IAsset Content;
但不是
public List<IAsset> Contents;
– 列表在序列化数据中显示为空.有没有办法做到这一点 – 序列化接口类型列表?
该应用程序是大而老的,它使用的对象的形状可能不会被允许改变.
谢谢
解决方法
你可能不需要做太多:)
The JSON and JSV Text serializers Now support serializing and
deserializing DTOs with Interface / Abstract or object types. Amongst
other things,this allows you to have an IInterface property which
when serialized will include its concrete type information in a __type
property field (similar to other JSON serializers) which when
serialized populates an instance of that concrete type (provided it
exists).[…]
Note: This feature is automatically added to all
Abstract/Interface/Object types,i.e. you don’t need to include any
[KNownType] attributes to take advantage of it.
不多:
public interface IAsset { string Bling { get; set; } } public class AAsset : IAsset { public string Bling { get; set; } public override string ToString() { return "A" + Bling; } } public class BAsset : IAsset { public string Bling { get; set; } public override string ToString() { return "B" + Bling; } } public class AssetBag { [JsonProperty(TypeNameHandling = TypeNameHandling.None)] public List<IAsset> Assets { get; set; } } class Program { static void Main(string[] args) { try { var bag = new AssetBag { Assets = new List<IAsset> {new AAsset {Bling = "Oho"},new BAsset() {Bling = "Aha"}} }; string json = JsonConvert.SerializeObject(bag,new JsonSerializerSettings() { TypeNameHandling = TypeNameHandling.Auto }); var anotherBag = JsonConvert.DeserializeObject<AssetBag>(json,new JsonSerializerSettings() { TypeNameHandling = TypeNameHandling.Auto });
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