一 创建ConfigurationManager类

public class ConfigurationManager { public readonly static IConfiguration Configuration; static ConfigurationManager() { Configuration = new ConfigurationBuilder().SetBasePath(Directory.GetCurrentDirectory()).AddJsonFile("appsettings.json", optional: true).Build(); } }

二 控制器内读取方式

public class HomeController : Controller { public IActionResult Index() { //读取 string str=ConfigurationManager.Configuration["Logging:LogLevel:Default"]; return View(); } }