asp.net core使用autofac作为服务注册容器

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asp.net core使用autofac作为服务注册容器

1.引用nuget包

<PackageReference Include="Autofac" Version="6.0.0" />
<PackageReference Include="Autofac.Extensions.DependencyInjection" Version="6.0.0" />

2.创建接口和实现类

   public interface IMyService{void print();}public class MyService : IMyService{public void print(){Console.WriteLine("hello");}}

3.创建服务注册模块类

public class MyServicesModule : Module{protected override void Load(ContainerBuilder builder){// 注册服务builder.RegisterType<MyService>().As<IMyService>().InstancePerLifetimeScope();}}

4.在program中使用autofac容器

 builder.Host.UseServiceProviderFactory(new AutofacServiceProviderFactory(p => { p.RegisterModule<MyServicesModule>(); }));

5.在控制器或其他需要使用依赖注入的类中注入服务

public class MyController : Controller
{private readonly IMyService _myService;public MyController(IMyService myService){_myService = myService;}// 使用_myService...
}