如何在.Net内核中将App.config更改为json配置文件

{
  "AppSettings": {
    "Key1": "Value1",
    "Key2": "Value2"
  },
  "ConnectionStrings": {
    "ConnectionString1": "Data Source=ServerName;Initial Catalog=DatabaseName;User ID=UserName;Password=Password"
  }
}

using Newtonsoft.Json;
using System;
using System.Configuration;
using System.IO;

public class AppConfig
{
    public string Key1 { get; set; }
    public string Key2 { get; set; }
    public string ConnectionString1 { get; set; }
}

public class Program
{
    static void Main(string[] args)
    {
        string jsonConfigPath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "config.json");
        string jsonConfig = File.ReadAllText(jsonConfigPath);
        AppConfig appConfig = JsonConvert.DeserializeObject<AppConfig>(jsonConfig);

        // 使用配置项
        Console.WriteLine(appConfig.Key1);
        Console.WriteLine(appConfig.ConnectionString1);
    }
}