Startup.cs public class Startup { // This method gets called by the runtime. Use this method to add services to the container. public void ConfigureServices(IServiceCollection services) { services.AddLocalWebStorage(); //add this code //other code } } public class HomeController : Controller { WebStorageProvider webStorageProvider; public HomeController(WebStorageProvider provider) { this.webStorageProvider = provider; } public IActionResult Index() { var file = this.webStorageProvider.GetFile("/f/abc.txt"); return View(); } } or public IActionResult Index([FromServices]WebStorageProvider provider) { var file = provider.GetFile("/f/abc.txt"); return View(); } 

WebStorageProvider webStorageProvider = new AliyunOSSWebStorageProvider(endpoint, bucketName, accessKeyId, accessKeySecret);