C#-Json-抽象类的反序列化

引用：

using System;
using System.Collections.Generic;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;

自定义转化器：

   public class JsonPersonConverter : JsonConverter
   {
       public override bool CanConvert (Type objectType)
       {
           return typeof (Person).IsAssignableFrom (objectType);
       }

       public override object ReadJson (JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
       {
           var jsonObject = JObject.Load (reader);
           object target = null;
           JToken gender;
           if (jsonObject.TryGetValue ("Gender", out gender))
           {
               switch (gender.ToString ())
               {
                   case "man":
                       target = new Man ();
                       break;
                   case "woman":
                       target = new Woman ();
                       break;
               }
           }
           serializer.Populate (jsonObject.CreateReader (), target);
           return target;
       }

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

   public abstract class Person
   {
       public string Gender { get; set; }
   }

   public class Man : Person
   {
       public string Power { get; set; }
   }

   public class Woman : Person
   {
       public string Skirt { get; set; }
   }

 

调用：

   var json = JsonConvert.SerializeObject (new List<Person> ()
   {
       new Man { Gender = "man", Power = "power" },
       new Woman { Gender = "woman", Skirt = "skirt" }
   });
   var people = JsonConvert.DeserializeObject<List<Person>> (json, new JsonPersonConverter ());

 

效果：