使用Json.NET进行自定义映射

public class Person
{
    [JsonProperty("name")]
    public string Name { get; set; }

    [JsonProperty("age")]
    public int Age { get; set; }

    [JsonProperty("address")]
    public Address Address { get; set; }
}

public class Address
{
    [JsonProperty("street")]
    public string Street { get; set; }

    [JsonProperty("city")]
    public string City { get; set; }

    [JsonProperty("state")]
    public string State { get; set; }

    [JsonProperty("zip")]
    public string Zip { get; set; }
}

public class CustomConverter : JsonConverter
{
    public override bool CanConvert(Type objectType)
    {
        return objectType == typeof(Person);
    }

    public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
    {
        JObject obj = JObject.Load(reader);
        Person person = new Person();
        person.Name = obj["name"].ToString();
        person.Age = (int)obj["age"];
        person.Address = new Address
        {
            Street = obj["address"]["street"].ToString(),
            City = obj["address"]["city"].ToString(),
            State = obj["address"]["state"].ToString(),
            Zip = obj["address"]["zip"].ToString()
        };
        return person;
    }

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

public class CustomConverterAttribute : JsonConverterAttribute
{
    public override JsonConverter CreateConverter(Type objectType)
    {
        return new CustomConverter();
    }
}

[CustomConverter]
public class PersonWithCustomConverter : Person
{
}

public static void Main(string[] args)
{
    string json = "{\"name\":\"John Doe\",\"age\":30,\"address\":{\"street\":\"123 Main St\",\"city\":\"Anytown\",\"state\":\"CA\",\"zip\":\"12345\"}}";
    PersonWithCustomConverter person = JsonConvert.DeserializeObject<PersonWithCustomConverter>(json);
    Console.WriteLine(person.Name);
    Console.WriteLine(person.Age);
    Console.WriteLine(person.Address.Street);
    Console.WriteLine(person.Address.City);
    Console.WriteLine(person.Address.State);
    Console.WriteLine(person.Address.Zip);
}