Autofacwith.NET6consoleappandServiceCollection
创始人
2024-11-12 12:00:31
0
  1. 安装NuGet包:Autofac和Autofac.Extensions.DependencyInjection。可以使用以下命令:
Install-Package Autofac
Install-Package Autofac.Extensions.DependencyInjection
  1. 创建.NET 6控制台应用程序并打开Program.cs

  2. 导入以下命名空间:

using Autofac;
using Autofac.Extensions.DependencyInjection;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
  1. 更改CreateHostBuilder方法,以使用Autofac替换默认的ServiceCollection:
public static IHostBuilder CreateHostBuilder(string[] args) =>
    Host.CreateDefaultBuilder(args)
        .UseServiceProviderFactory(new AutofacServiceProviderFactory())
        .ConfigureContainer(builder => {
            // 注册依赖项
        })
        .ConfigureServices((hostContext, services) =>
        {
            // 添加服务到ServiceCollection
        });
  1. ConfigureContainer方法中,注册类和它们的接口或基类作为接口的实现:
public static IHostBuilder CreateHostBuilder(string[] args) =>
    Host.CreateDefaultBuilder(args)
        .UseServiceProviderFactory(new AutofacServiceProviderFactory())
        .ConfigureContainer(builder => {
            // 将实现IService接口的类注册到容器
            builder.RegisterType().As();
        })
        .ConfigureServices((hostContext, services) =>
        {
            // 添加服务到ServiceCollection
        });
  1. 在程序中使用DI服类式:
class Program 
{
    private readonly IService _service;

    // 通过构造函数注入IService实例
    public Program(IService service)
    {
        _service = service;
    }

    static void Main(string[] args)
    {
        // 创建宿主,启动应用程序
        var builder = CreateHostBuilder(args);
        using var host = builder.Build();
        using var scope = host.Services.CreateScope();

        // 获取注册为IService类型的实例
        var service = scope.ServiceProvider.GetRequiredService();
        service.Run();

        Console.ReadLine();
    }
}

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