appsettings.json如下

{  "Logging": {    "LogLevel": {      "Default": "Debug",      "System": "Information",      "Microsoft": "Information"    },    "AllowedHosts": "*"  },  "ConfigSetting": {    "Ctu": 1,    "Btu": "Btu",    "Atu": "Atu"  }}

建立实体ConfigSetting

public class ConfigSetting    {        public int Ctu { get; set; }        public string Btu { get; set; }        public string Atu { get; set; }    }

Startup配置

public void ConfigureServices(IServiceCollection services)        {            services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2);            services.Configure
     
      (Configuration.GetSection("ConfigSetting"));        }
     

Controller配置

[Route("api/[controller]")]    [ApiController]    public class ValuesController : ControllerBase    {        private readonly IOptions
     
       _ConfigSettingt;        public ValuesController(IOptions
      
        ConfigSetting)        {            _ConfigSettingt = ConfigSetting;        }        [HttpGet("{id}")]        public ActionResult
       
         Get(int id)        {            return _ConfigSettingt.Value.Atu;        }    }