.net core 读取配置文件

   /// <summary>
     /// 读取配置信息
     /// </summary>
     public class Zconfig
     {
         #region 读取配置信息
         /// <summary>
         /// 读取配置信息
         /// </summary>
         /// <param name="name">key</param>
         /// <returns></returns>
         public static string Getconfig(string name)
         {
             IConfiguration config = new ConfigurationBuilder().Add(new JsonConfigurationSource { Path = "appsettings.json", ReloadOnChange = true }).Build();
             var appconfig = new ServiceCollection()
             .AddOptions()
             .Configure<SiteConfig>(config.GetSection("SiteConfig"))
             .BuildServiceProvider()
             .GetService<IOptions<SiteConfig>>()
             .Value;

             return appconfig.Configlist.FirstOrDefault(o => o.Name == name).Info;
         }
         #endregion

     }

     #region 读取配置相关类
     public class SiteConfig
     {

         public List<SiteConfiglist> Configlist { get; set; }
     }
     public class SiteConfiglist
     {
         public string Name { get; set; }
         public string Info { get; set; }
     }
     #endregion

通过在appsettings.json配置节点，再通过以上方法 传入name的值读取info的值