c# - 如何将 Autofac 与 Asp.net core 2.2 集成

Question

我有以下指南:https://autofac.readthedocs.io/en/latest/integration/aspnetcore.html

在最后一步，它显示:

// Create the IServiceProvider based on the container.
return new AutofacServiceProvider(this.ApplicationContainer);

但是，Asp Net core 2.2 的最新版本，函数ConfigureServices(IServiceCollection services) 返回void

public void ConfigureServices(IServiceCollection services)

如何根据最新更改重构我的代码？

Answer 1

在您的解决方案中，您在 ConfigureServices 方法中使用了 void 返回类型:

public void ConfigureServices(IServiceCollection services)

实际上你可以设置并返回IServiceProvider:

public class Startup 
{
  public IContainer Container { get; private set; }

  // ...

  public IServiceProvider ConfigureServices(IServiceCollection services)
  {
    // create new container builder
    var containerBuilder = new ContainerBuilder();
    // populate .NET Core services
    containerBuilder.Populate(services);
    // register your autofac modules
    containerBuilder.RegisterModule(new ApiModule());

    // build container
    Container = containerBuilder.Build();

    // return service provider
    return new AutofacServiceProvider(Container);
}

在 official documentation 中查看更多详细信息