Added generic host support for the Volo.Abp.Autofac package.

framework/src/Volo.Abp.Autofac/Microsoft/Extensions/Hosting/AbpAutofacHostBuilderExtensions.cs

@@ -0,0 +1,20 @@
+using Autofac;
+using Volo.Abp.Autofac;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace Microsoft.Extensions.Hosting
+{
+    public static class AbpAutofacHostBuilderExtensions
+    {
+        public static IHostBuilder UseAutofac(this IHostBuilder hostBuilder)
+        {
+            var containerBuilder = new ContainerBuilder();
+
+            return hostBuilder.ConfigureServices((_, services) =>
+                {
+                    services.AddObjectAccessor(containerBuilder);
+                })
+                .UseServiceProviderFactory(new AbpAutofacServiceProviderFactory(containerBuilder));
+        }
+    }
+}

framework/src/Volo.Abp.Autofac/Volo.Abp.Autofac.csproj

@@ -16,6 +16,7 @@
   <ItemGroup>
     <PackageReference Include="Autofac.Extras.DynamicProxy" Version="4.5.0" />
     <PackageReference Include="Autofac" Version="4.9.4" />
+    <PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="3.0.0" />
   </ItemGroup>
 
   <ItemGroup>