整数类型上的JSON反序列化错误- C#

using Newtonsoft.Json;

public class MyObject
{
    [JsonProperty("id")]
    public int Id { get; set; }
}

public class CustomIntConverter : JsonConverter<int>
{
    public override int ReadJson(JsonReader reader, Type objectType, int existingValue, bool hasExistingValue, JsonSerializer serializer)
    {
        if (reader.Value is string stringValue)
        {
            if (int.TryParse(stringValue, out int intValue))
            {
                return intValue;
            }
        }

        return existingValue;
    }

    public override void WriteJson(JsonWriter writer, int value, JsonSerializer serializer)
    {
        writer.WriteValue(value.ToString());
    }
}

public class Program
{
    public static void Main()
    {
        string json = "{\"id\":\"123\"}";

        var settings = new JsonSerializerSettings();
        settings.Converters.Add(new CustomIntConverter());

        var myObject = JsonConvert.DeserializeObject<MyObject>(json, settings);

        Console.WriteLine(myObject.Id); // 输出：123
    }
}