转移.net core 3.1，为.NET 5做准备

OpenAuth.WebApi/Program.cs

@@ -0,0 +1,31 @@
+using Autofac.Extensions.DependencyInjection;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Logging;
+
+namespace OpenAuth.WebApi
+{
+    public class Program
+    {
+        public static void Main(string[] args)
+        {
+            CreateHostBuilder(args).Build().Run();
+        }
+
+        public static IHostBuilder CreateHostBuilder(string[] args) =>
+            Host.CreateDefaultBuilder(args)
+                .ConfigureLogging((hostingContext, logging) =>
+                {
+                    logging.ClearProviders(); //去掉默认的日志
+                    logging.AddFilter("System", LogLevel.Error);
+                    logging.AddFilter("Microsoft", LogLevel.Error);
+                    logging.AddLog4Net();
+                })
+                .UseServiceProviderFactory(
+                    new AutofacServiceProviderFactory()) //将默认ServiceProviderFactory指定为AutofacServiceProviderFactory
+                .ConfigureWebHostDefaults(webBuilder =>
+                {
+                    webBuilder.UseUrls("http://*:52789").UseStartup<Startup>();
+                });
+    }
+}