.NET Core简单读取json配置文件

{
 "name": "wen",
 "age": 26,
 "family": {
  "mother": {
   "name": "娘",
   "age": 55
  },
  "father": {
   "name": "爹",
   "age": 56
  }
 }
}

using System;
using System.IO;
using Microsoft.Extensions.Configuration;

namespace Demo
{
  class Program
  {
    static void Main(string[] args)
    {
      //添加 json 文件路径
      var builder = new ConfigurationBuilder().SetBasePath(Directory.GetCurrentDirectory()).AddJsonFile("appsettings.json");
      //创建配置根对象
      var configurationRoot = builder.Build();

      //取配置根下的 name 部分
      var nameSection = configurationRoot.GetSection("name");
      //取配置根下的 family 部分
      var familySection = configurationRoot.GetSection("family");
      //取 family 部分下的 mother 部分下的 name 部分
      var motherNameSection = familySection.GetSection("mother").GetSection("name");
      //取 family 部分下的 father 部分下的 age 部分
      var fatherAgeSection = familySection.GetSection("father").GetSection("age");

      //Value 为文本值
      Console.WriteLine($"name: {nameSection.Value}");
      Console.WriteLine($"motherName: {motherNameSection.Value}");
      Console.WriteLine($"fatherAge: {fatherAgeSection.Value}");
      Console.Read();
    }
  }
}