fix issue #I3QBZI

Infrastructure/StartupLogger.cs

@@ -1,24 +0,0 @@
-
-
-using Microsoft.Extensions.Logging;
-
-namespace Infrastructure
-{
-    /// <summary>
-    /// 从3.0开始Startup ConfigureServices中不能使用ILogger，需要扩展
-    /// </summary>
-    public class StartupLogger
-    {
-        private readonly ILogger<StartupLogger> _logger;
-
-        public StartupLogger(ILogger<StartupLogger> logger)
-        {
-            _logger = logger;
-        }
-
-        public void LogInformation(string message)
-        {
-            _logger.LogInformation(message);
-        }
-    }
-}

OpenAuth.Mvc/Startup.cs

@@ -30,12 +30,12 @@ namespace OpenAuth.Mvc
         // This method gets called by the runtime. Use this method to add services to the container.
         public void ConfigureServices(IServiceCollection services)
         {
-            services.AddSingleton(provider =>
+            //在startup中需要强制创建log4net
+            var loggerFactory = LoggerFactory.Create(builder =>
             {
-                var service = provider.GetRequiredService<ILogger<StartupLogger>>();
-                return new StartupLogger(service);
+                builder.AddLog4Net();
             });
-            var logger = services.BuildServiceProvider().GetRequiredService<StartupLogger>();
+            ILogger logger = loggerFactory.CreateLogger<Startup>();
             var identityServer = ((ConfigurationSection)Configuration.GetSection("AppSetting:IdentityServerUrl")).Value;
             if (!string.IsNullOrEmpty(identityServer))
             {