一个非常简单的入门级ASP.NET Core Autofac使用

Posted 2020-12-20 cjb8973

好好学习，天天向上。

这是结构。

 

 

 方法一 在Program中，添加Autofac服务

1：

 1         public static void Main(string[] args)
 2         {
 3             CreateHostBuilder(args).Build().Run();
 4         }
 5         //    public static IHostBuilder CreateHostBuilder(string[] args) =>
 6         //Host.CreateDefaultBuilder(args)
 7         //    .ConfigureWebHostDefaults(webBuilder =>
 8         //    {
 9         //        webBuilder.UseStartup<Startup>();
10         //    }).UseServiceProviderFactory(new AutofacServiceProviderFactory());
11         public static IHostBuilder CreateHostBuilder(string[] args) =>
12             Host.CreateDefaultBuilder(args)
13             .UseServiceProviderFactory(new AutofacServiceProviderFactory())//添加Autofac服务
14                 .ConfigureWebHostDefaults(webBuilder =>
15                 {
16                     webBuilder.UseStartup<Startup>();
17                 });

2： Startup类修改ConfigureContainer方法

1   public void ConfigureContainer(ContainerBuilder builder)
2         {
3           builder.RegisterType<OneService>().As<IOneService>(); 
4         }

方法二，  继承module 

1. 创建CustomAutofacModule 类

 1  public class CustomAutofacModule :Autofac.Module
 2     {
 3         /// <summary>
 4         /// AutoFac注册类
 5         /// </summary>
 6         /// <param name="builder"></param>
 7         protected override void Load(ContainerBuilder builder)
 8         {
 9             /*单次注入*/
10             builder.RegisterType<OneService>().As<IService>();
11            14         }
15        24     }

2： Startup类修改ConfigureContainer方法

  public void ConfigureContainer(ContainerBuilder builder)
        {
            // 直接用Autofac注册我们自定义的 
            //
            builder.RegisterModule(new CustomAutofacModule());

        }

批量注入

修改CustomAutofacModule 类 

 1  public class CustomAutofacModule :Autofac.Module
 2     {
 3         /// <summary>
 4         /// AutoFac注册类
 5         /// </summary>
 6         /// <param name="builder"></param>
 7         protected override void Load(ContainerBuilder builder)
 8         {
 9             ///*单次注入*/
10             //builder.RegisterType<OneService>().As<IService>();
11             //注册Service中的对象,Service中的类要以Service结尾，否则注册失败
12             builder.RegisterAssemblyTypes(GetAssemblyByName("Services")).
13                 Where(a => a.Name.EndsWith("Service")).AsImplementedInterfaces();
14         }
15         /// <summary>
16         /// 根据程序集名称获取程序集
17         /// </summary>
18         /// <param name="AssemblyName">程序集名称</param>
19         /// <returns></returns>
20         public static Assembly GetAssemblyByName(String AssemblyName)
21         {
22             return Assembly.Load(AssemblyName);
23         }
24     }

之后再控制器注入调用一下就好（接口方法就自己去随便定义一下了，这只是一个初级入门。）

 1     public class HomeController : Controller
 2     {
 3         private readonly ILogger<HomeController> _logger;
 4         private readonly IOneService _server;
 5         private readonly IArticleService _articleService;
 6 
 7         public HomeController(ILogger<HomeController> logger, IOneService service, IArticleService articleService)
 8         {
 9             _logger = logger;
10             _server = service;
11             _articleService = articleService;
12         }
13 
14         public IActionResult Index()
15         {
16             string a = _server.SayHi();
17             string b = _articleService.article();
18             return View();
19         }
20 
21       
22     }

 

 

不知道如何深入学习， 有哪位能够指点一下学习道路。感激不尽