问: ASP.NET CORE MVC 如何在Filter中使用依赖注入来读取AppSettings 答: Dependency injection is possible in filters as well. Here is a simple way to get connection string public class EBisUserAuthResourceFilter : Attribute, IResourceFilter { private readonly string co
问: .Net Core: Application startup exception: System.IO.FileNotFoundException: The configuration file 'appsettings.json' was not found and is not optional. 答: 问题代码: public Startup() { var builder = new ConfigurationBuilder().AddJsonFile("AppSetting.