core Web中使用appsettings.json配置文件的实例详解（ASP.NET ）

public void ConfigureServices(IServiceCollection services)

{

 // Add framework services.

 services.AddMvc();

}

public void ConfigureServices(IServiceCollection services)

{

 // Add framework services.

 services.AddMvc();

 // Added - uses IOptions<T> for your settings.

 services.AddOptions();

 // Added - Confirms that we have a home for our DemoSettings

 services.Configure<DemoSettings>(Configuration.GetSection("DemoSettings"));

}

public class HomeController : Controller

{

 private DemoSettings ConfigSettings { get; set; }

 public HomeController(IOptions<DemoSettings> settings)

 {

  ConfigSettings = settings.Value;

 }

 public IActionResult Index()

 {

  ViewData["SiteName"] = ConfigSettings.SiteName;

  return View();

 }

}