便于与structuremap进行集成，将代理包装核心部分独立出来供外部调用 (#132)

* 1

* 1

Author: wangronghua

extras/src/AspectCore.Extensions.DependencyInjection/AspectCore.Extensions.DependencyInjection.csproj

@@ -13,7 +13,7 @@
     <TargetFramework>netstandard2.0</TargetFramework>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="2.0.0" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="2.1.1" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\..\..\core\src\AspectCore.Core\AspectCore.Core.csproj" />

extras/src/AspectCore.Extensions.DependencyInjection/ServiceCollectionBuildExtensions.cs

@@ -7,12 +7,18 @@
 using AspectCore.Injector;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.DependencyInjection.Extensions;
+using System.Collections.Generic;
+using System.Linq;
 
 namespace AspectCore.Extensions.DependencyInjection
 {
     public static class ServiceCollectionBuildExtensions
     {
         public static IServiceProvider BuildAspectCoreServiceProvider(this IServiceCollection services)
+        {
+            return services.AddDynamicProxyCore().BuildServiceProvider(false);
+        }
+        public static IServiceCollection AddDynamicProxyCore(this IServiceCollection services)
         {
             if (services == null)
             {
@@ -24,8 +30,7 @@ public static IServiceProvider BuildAspectCoreServiceProvider(this IServiceColle
             var serviceValidator = new ServiceValidator(serviceProvider.GetRequiredService<IAspectValidatorBuilder>());
             var proxyTypeGenerator = serviceProvider.GetRequiredService<IProxyTypeGenerator>();
 
-            var dynamicProxyServices = new ServiceCollection();
-
+            IServiceCollection dynamicProxyServices = new ServiceCollection();
             foreach (var service in services)
             {
                 if (serviceValidator.TryValidate(service, out Type implementationType))
@@ -36,9 +41,10 @@ public static IServiceProvider BuildAspectCoreServiceProvider(this IServiceColle
 
             serviceProvider.Dispose();
 
-            return dynamicProxyServices.BuildServiceProvider(false);
+            return dynamicProxyServices;
         }
 
+
         private static ServiceDescriptor MakeProxyService(ServiceDescriptor descriptor, Type implementationType, IProxyTypeGenerator proxyTypeGenerator)
         {
             var serviceTypeInfo = descriptor.ServiceType.GetTypeInfo();