ASP.NET Core 專案樣版的預設相依注入服務研究分析 1

ASP.NET Core 3.0 專案樣版的預設相依注入服務研究分析

在這篇文章中，將會使用 Visual Studio 2019 來使用預設的 專案樣板，使用 .NET Core 3.0 平台，依序建立起各個專案樣板中的 ASP.NET Core 的專案，接著，觀察這些專案中的預設相依性注入的服務有哪些。

ASP.NET Core 專案樣版的預設相依注入服務研究分析 1
ASP.NET Core 專案樣版的預設相依注入服務研究分析 2
ASP.NET Core 專案樣版的預設相依注入服務研究分析 3
ASP.NET Core 專案樣版的預設相依注入服務研究分析 4
ASP.NET Core 專案樣版的預設相依注入服務研究分析 5

為了要能夠了解到專案內的相依性注入容器內已經有哪些預設的服務已經注入完成，這裡需要取得 IServiceCollection 這個具體實作的物件，並且使用底下的方式，逐一取得相依性注入服務容器的各個已經註冊的型別對應關係。

foreach (var item in serviceDescriptors)
{
    var newObject = new ServiceRegistration()
    {
        Lifetime = item.Lifetime.ToString(),
        ServiceType = item.ServiceType.Name,
        ImplementationType = item.ImplementationType?.Name,
        ImplementationInstance = item.ImplementationInstance?.GetType().Name,
        ImplementationFactory = item.ImplementationFactory?.GetType().GenericTypeArguments[1].Name
        //ImplementationFactory = item.ImplementationFactory != null ? "Factory" : ""
    };
    list.Add(newObject);
}

其中，需要在 Startup 類別中宣告一個欄位 IServiceCollection Services，接著在 ConfigureServices 方法內，將傳入的 IServiceCollection 參數物件，設定給剛剛宣告好的 Services 欄位變數

最後，請在 Configure 方法內，將上述程式碼在這個方法內來執行，就可以取得現在相依性注入服務容器的各個型別對應註冊表了。

另外，在這篇文章中，也彙整了各種專案範本的 Program 與 Startup 類別的程式碼，大家可以參考與比對，在不同的專案範本中，這些程式碼的差異在哪裡呢？

空白的專案

• 請先使用 Visual Studio 2019 在 [建立新專案]對話窗中，選擇建立一個 [ASP.NET Core Web 應用程式]
• 在 [設定新的專案] 對話窗中，輸入適合的專案名稱
• 在 [建立新的 ASP.NET Core Web 應用程式] 對話窗中，請選擇 [空白] 專案樣版

  可用於建立 ASP.NET Core 應用程式的空白專案範本，此範本不含任何內容

• 點選右下方 [建立] 按鈕，完成此專案範本的建立工作
• 現在可以開始執行這個專案，底下是這個專案的執行畫面截圖 

這個專案的 Program 類別的程式碼為

    public class Program
    {
        public static void Main(string[] args)
        {
            CreateHostBuilder(args).Build().Run();
        }

        public static IHostBuilder CreateHostBuilder(string[] args) =>
            Host.CreateDefaultBuilder(args)
                .ConfigureWebHostDefaults(webBuilder =>
                {
                    webBuilder.UseStartup<Startup>();
                });
    }

這個專案的 Startup 類別程式碼為

    public class Startup
    {
        // This method gets called by the runtime. Use this method to add services to the container.
        // For more information on how to configure your application, visit https://go.microsoft.com/fwlink/?LinkID=398940
        public void ConfigureServices(IServiceCollection services)
        {
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }

            app.UseRouting();

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapGet("/", async context =>
                {
                    await context.Response.WriteAsync("Hello World!");
                });
            });
        }
    }

這裡是預設註冊的所有服務清單，總共有 71 個

All Services

Index	Type	Lifetime	ImplementationType	ImplementationInstance	ImplementationFactory
1	Microsoft.Extensions.Hosting.IHostingEnvironment	Singleton		HostingEnvironment
2	Microsoft.Extensions.Hosting.IHostEnvironment	Singleton		HostingEnvironment
3	Microsoft.Extensions.Hosting.HostBuilderContext	Singleton		HostBuilderContext
4	Microsoft.Extensions.Configuration.IConfiguration	Singleton			IConfiguration
5	Microsoft.Extensions.Hosting.IApplicationLifetime	Singleton			IApplicationLifetime
6	Microsoft.Extensions.Hosting.IHostApplicationLifetime	Singleton	ApplicationLifetime
7	Microsoft.Extensions.Hosting.IHostLifetime	Singleton	ConsoleLifetime
8	Microsoft.Extensions.Hosting.IHost	Singleton	Host
9	Microsoft.Extensions.Options.IOptions`1	Singleton	OptionsManager`1
10	Microsoft.Extensions.Options.IOptionsSnapshot`1	Scoped	OptionsManager`1
11	Microsoft.Extensions.Options.IOptionsMonitor`1	Singleton	OptionsMonitor`1
12	Microsoft.Extensions.Options.IOptionsFactory`1	Transient	OptionsFactory`1
13	Microsoft.Extensions.Options.IOptionsMonitorCache`1	Singleton	OptionsCache`1
14	Microsoft.Extensions.Logging.ILoggerFactory	Singleton	LoggerFactory
15	Microsoft.Extensions.Logging.ILogger`1	Singleton	Logger`1
16	Microsoft.Extensions.Options.IConfigureOptions`1[[Microsoft.Extensions.Logging.LoggerFilterOptions, Microsoft.Extensions.Logging, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton		DefaultLoggerLevelConfigureOptions
17	Microsoft.Extensions.Options.IConfigureOptions`1[[Microsoft.Extensions.Logging.LoggerFilterOptions, Microsoft.Extensions.Logging, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton		ConfigureNamedOptions`1
18	Microsoft.Extensions.Logging.Configuration.ILoggerProviderConfigurationFactory	Singleton	LoggerProviderConfigurationFactory
19	Microsoft.Extensions.Logging.Configuration.ILoggerProviderConfiguration`1	Singleton	LoggerProviderConfiguration`1
20	Microsoft.Extensions.Options.IConfigureOptions`1[[Microsoft.Extensions.Logging.LoggerFilterOptions, Microsoft.Extensions.Logging, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton		LoggerFilterConfigureOptions
21	Microsoft.Extensions.Options.IOptionsChangeTokenSource`1[[Microsoft.Extensions.Logging.LoggerFilterOptions, Microsoft.Extensions.Logging, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton		ConfigurationChangeTokenSource`1
22	Microsoft.Extensions.Logging.Configuration.LoggingConfiguration	Singleton		LoggingConfiguration
23	Microsoft.Extensions.Logging.ILoggerProvider	Singleton	ConsoleLoggerProvider
24	Microsoft.Extensions.Options.IConfigureOptions`1[[Microsoft.Extensions.Logging.Console.ConsoleLoggerOptions, Microsoft.Extensions.Logging.Console, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton	LoggerProviderConfigureOptions`2
25	Microsoft.Extensions.Options.IOptionsChangeTokenSource`1[[Microsoft.Extensions.Logging.Console.ConsoleLoggerOptions, Microsoft.Extensions.Logging.Console, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton	LoggerProviderOptionsChangeTokenSource`2
26	Microsoft.Extensions.Logging.ILoggerProvider	Singleton	DebugLoggerProvider
27	Microsoft.Extensions.Logging.EventSource.LoggingEventSource	Singleton		LoggingEventSource
28	Microsoft.Extensions.Logging.ILoggerProvider	Singleton	EventSourceLoggerProvider
29	Microsoft.Extensions.Options.IConfigureOptions`1[[Microsoft.Extensions.Logging.LoggerFilterOptions, Microsoft.Extensions.Logging, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton	EventLogFiltersConfigureOptions
30	Microsoft.Extensions.Options.IOptionsChangeTokenSource`1[[Microsoft.Extensions.Logging.LoggerFilterOptions, Microsoft.Extensions.Logging, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton	EventLogFiltersConfigureOptionsChangeSource
31	Microsoft.Extensions.Logging.ILoggerProvider	Singleton	EventLogLoggerProvider
32	Microsoft.AspNetCore.Hosting.IWebHostEnvironment	Singleton		HostingEnvironment
33	Microsoft.AspNetCore.Hosting.IHostingEnvironment	Singleton		HostingEnvironment
34	Microsoft.AspNetCore.Hosting.IApplicationLifetime	Singleton	GenericWebHostApplicationLifetime
35	Microsoft.Extensions.Options.IConfigureOptions`1[[Microsoft.AspNetCore.Hosting.GenericWebHostServiceOptions, Microsoft.AspNetCore.Hosting, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton		ConfigureNamedOptions`1
36	System.Diagnostics.DiagnosticListener	Singleton		DiagnosticListener
37	System.Diagnostics.DiagnosticSource	Singleton		DiagnosticListener
38	Microsoft.AspNetCore.Http.IHttpContextFactory	Singleton	DefaultHttpContextFactory
39	Microsoft.AspNetCore.Http.IMiddlewareFactory	Scoped	MiddlewareFactory
40	Microsoft.AspNetCore.Hosting.Builder.IApplicationBuilderFactory	Singleton	ApplicationBuilderFactory
41	Microsoft.AspNetCore.Connections.IConnectionListenerFactory	Singleton	SocketTransportFactory
42	Microsoft.Extensions.Options.IConfigureOptions`1[[Microsoft.AspNetCore.Server.Kestrel.Core.KestrelServerOptions, Microsoft.AspNetCore.Server.Kestrel.Core, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Transient	KestrelServerOptionsSetup
43	Microsoft.AspNetCore.Hosting.Server.IServer	Singleton	KestrelServer
44	Microsoft.Extensions.Options.IConfigureOptions`1[[Microsoft.AspNetCore.Server.Kestrel.Core.KestrelServerOptions, Microsoft.AspNetCore.Server.Kestrel.Core, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton		ConfigureNamedOptions`1
45	Microsoft.Extensions.Options.IPostConfigureOptions`1[[Microsoft.AspNetCore.HostFiltering.HostFilteringOptions, Microsoft.AspNetCore.HostFiltering, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton		PostConfigureOptions`1
46	Microsoft.Extensions.Options.IOptionsChangeTokenSource`1[[Microsoft.AspNetCore.HostFiltering.HostFilteringOptions, Microsoft.AspNetCore.HostFiltering, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton		ConfigurationChangeTokenSource`1
47	Microsoft.AspNetCore.Hosting.IStartupFilter	Transient	HostFilteringStartupFilter
48	Microsoft.AspNetCore.Routing.IInlineConstraintResolver	Transient	DefaultInlineConstraintResolver
49	Microsoft.Extensions.ObjectPool.ObjectPoolProvider	Transient	DefaultObjectPoolProvider
50	Microsoft.Extensions.ObjectPool.ObjectPool`1[[Microsoft.AspNetCore.Routing.UriBuildingContext, Microsoft.AspNetCore.Routing, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton			ObjectPool`1
51	Microsoft.AspNetCore.Routing.Tree.TreeRouteBuilder	Transient			TreeRouteBuilder
52	Microsoft.AspNetCore.Routing.RoutingMarkerService	Singleton	RoutingMarkerService
53	Microsoft.Extensions.Options.IConfigureOptions`1[[Microsoft.AspNetCore.Routing.RouteOptions, Microsoft.AspNetCore.Routing, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Transient			ConfigureRouteOptions
54	Microsoft.AspNetCore.Routing.EndpointDataSource	Singleton			EndpointDataSource
55	Microsoft.AspNetCore.Routing.ParameterPolicyFactory	Singleton	DefaultParameterPolicyFactory
56	Microsoft.AspNetCore.Routing.Matching.MatcherFactory	Singleton	DfaMatcherFactory
57	Microsoft.AspNetCore.Routing.Matching.DfaMatcherBuilder	Transient	DfaMatcherBuilder
58	Microsoft.AspNetCore.Routing.Internal.DfaGraphWriter	Singleton	DfaGraphWriter
59	Microsoft.AspNetCore.Routing.Matching.DataSourceDependentMatcher+Lifetime	Transient	Lifetime
60	Microsoft.AspNetCore.Routing.Matching.EndpointMetadataComparer	Singleton			EndpointMetadataComparer
61	Microsoft.AspNetCore.Routing.LinkGenerator	Singleton	DefaultLinkGenerator
62	Microsoft.AspNetCore.Routing.IEndpointAddressScheme`1[[System.String, System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]]	Singleton	EndpointNameAddressScheme
63	Microsoft.AspNetCore.Routing.IEndpointAddressScheme`1[[Microsoft.AspNetCore.Routing.RouteValuesAddress, Microsoft.AspNetCore.Routing, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton	RouteValuesAddressScheme
64	Microsoft.AspNetCore.Routing.LinkParser	Singleton	DefaultLinkParser
65	Microsoft.AspNetCore.Routing.Matching.EndpointSelector	Singleton	DefaultEndpointSelector
66	Microsoft.AspNetCore.Routing.MatcherPolicy	Singleton	HttpMethodMatcherPolicy
67	Microsoft.AspNetCore.Routing.MatcherPolicy	Singleton	HostMatcherPolicy
68	Microsoft.AspNetCore.Routing.Template.TemplateBinderFactory	Singleton	DefaultTemplateBinderFactory
69	Microsoft.AspNetCore.Routing.Patterns.RoutePatternTransformer	Singleton	DefaultRoutePatternTransformer
70	Microsoft.Extensions.Options.IConfigureOptions`1[[Microsoft.AspNetCore.Hosting.GenericWebHostServiceOptions, Microsoft.AspNetCore.Hosting, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton		ConfigureNamedOptions`1
71	Microsoft.Extensions.Hosting.IHostedService	Singleton	GenericWebHostService

API 專案

• 請先使用 Visual Studio 2019 在 [建立新專案]對話窗中，選擇建立一個 [ASP.NET Core Web 應用程式]
• 在 [設定新的專案] 對話窗中，輸入適合的專案名稱
• 在 [建立新的 ASP.NET Core Web 應用程式] 對話窗中，請選擇 [API] 專案樣版

  用於建立 ASP.NET Core 應用程式的專案範本，富有 RESTful HTTP 服務的控制器範例。此範本也可用於 ASP.NET Core MVC 的檢視及控制器

• 點選右下方 [建立] 按鈕，完成此專案範本的建立工作
• 現在可以開始執行這個專案，底下是這個專案的執行畫面截圖 

這個專案的 Program 類別的程式碼為

    public class Program
    {
        public static void Main(string[] args)
        {
            CreateHostBuilder(args).Build().Run();
        }

        public static IHostBuilder CreateHostBuilder(string[] args) =>
            Host.CreateDefaultBuilder(args)
                .ConfigureWebHostDefaults(webBuilder =>
                {
                    webBuilder.UseStartup<Startup>();
                });
    }

這個專案的 Startup 類別程式碼為

    public class Startup
    {
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        public IConfiguration Configuration { get; }

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddControllers();
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }

            app.UseHttpsRedirection();

            app.UseRouting();

            app.UseAuthorization();

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllers();
            });
        }
    }

這裡是預設註冊的所有服務清單，總共有 159 個

All Services

Index	Type	Lifetime	ImplementationType	ImplementationInstance	ImplementationFactory
1	Microsoft.Extensions.Hosting.IHostingEnvironment	Singleton		HostingEnvironment
2	Microsoft.Extensions.Hosting.IHostEnvironment	Singleton		HostingEnvironment
3	Microsoft.Extensions.Hosting.HostBuilderContext	Singleton		HostBuilderContext
4	Microsoft.Extensions.Configuration.IConfiguration	Singleton			IConfiguration
5	Microsoft.Extensions.Hosting.IApplicationLifetime	Singleton			IApplicationLifetime
6	Microsoft.Extensions.Hosting.IHostApplicationLifetime	Singleton	ApplicationLifetime
7	Microsoft.Extensions.Hosting.IHostLifetime	Singleton	ConsoleLifetime
8	Microsoft.Extensions.Hosting.IHost	Singleton	Host
9	Microsoft.Extensions.Options.IOptions`1	Singleton	OptionsManager`1
10	Microsoft.Extensions.Options.IOptionsSnapshot`1	Scoped	OptionsManager`1
11	Microsoft.Extensions.Options.IOptionsMonitor`1	Singleton	OptionsMonitor`1
12	Microsoft.Extensions.Options.IOptionsFactory`1	Transient	OptionsFactory`1
13	Microsoft.Extensions.Options.IOptionsMonitorCache`1	Singleton	OptionsCache`1
14	Microsoft.Extensions.Logging.ILoggerFactory	Singleton	LoggerFactory
15	Microsoft.Extensions.Logging.ILogger`1	Singleton	Logger`1
16	Microsoft.Extensions.Options.IConfigureOptions`1[[Microsoft.Extensions.Logging.LoggerFilterOptions, Microsoft.Extensions.Logging, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton		DefaultLoggerLevelConfigureOptions
17	Microsoft.Extensions.Options.IConfigureOptions`1[[Microsoft.Extensions.Logging.LoggerFilterOptions, Microsoft.Extensions.Logging, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton		ConfigureNamedOptions`1
18	Microsoft.Extensions.Logging.Configuration.ILoggerProviderConfigurationFactory	Singleton	LoggerProviderConfigurationFactory
19	Microsoft.Extensions.Logging.Configuration.ILoggerProviderConfiguration`1	Singleton	LoggerProviderConfiguration`1
20	Microsoft.Extensions.Options.IConfigureOptions`1[[Microsoft.Extensions.Logging.LoggerFilterOptions, Microsoft.Extensions.Logging, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton		LoggerFilterConfigureOptions
21	Microsoft.Extensions.Options.IOptionsChangeTokenSource`1[[Microsoft.Extensions.Logging.LoggerFilterOptions, Microsoft.Extensions.Logging, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton		ConfigurationChangeTokenSource`1
22	Microsoft.Extensions.Logging.Configuration.LoggingConfiguration	Singleton		LoggingConfiguration
23	Microsoft.Extensions.Logging.ILoggerProvider	Singleton	ConsoleLoggerProvider
24	Microsoft.Extensions.Options.IConfigureOptions`1[[Microsoft.Extensions.Logging.Console.ConsoleLoggerOptions, Microsoft.Extensions.Logging.Console, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton	LoggerProviderConfigureOptions`2
25	Microsoft.Extensions.Options.IOptionsChangeTokenSource`1[[Microsoft.Extensions.Logging.Console.ConsoleLoggerOptions, Microsoft.Extensions.Logging.Console, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton	LoggerProviderOptionsChangeTokenSource`2
26	Microsoft.Extensions.Logging.ILoggerProvider	Singleton	DebugLoggerProvider
27	Microsoft.Extensions.Logging.EventSource.LoggingEventSource	Singleton		LoggingEventSource
28	Microsoft.Extensions.Logging.ILoggerProvider	Singleton	EventSourceLoggerProvider
29	Microsoft.Extensions.Options.IConfigureOptions`1[[Microsoft.Extensions.Logging.LoggerFilterOptions, Microsoft.Extensions.Logging, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton	EventLogFiltersConfigureOptions
30	Microsoft.Extensions.Options.IOptionsChangeTokenSource`1[[Microsoft.Extensions.Logging.LoggerFilterOptions, Microsoft.Extensions.Logging, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton	EventLogFiltersConfigureOptionsChangeSource
31	Microsoft.Extensions.Logging.ILoggerProvider	Singleton	EventLogLoggerProvider
32	Microsoft.AspNetCore.Hosting.IWebHostEnvironment	Singleton		HostingEnvironment
33	Microsoft.AspNetCore.Hosting.IHostingEnvironment	Singleton		HostingEnvironment
34	Microsoft.AspNetCore.Hosting.IApplicationLifetime	Singleton	GenericWebHostApplicationLifetime
35	Microsoft.Extensions.Options.IConfigureOptions`1[[Microsoft.AspNetCore.Hosting.GenericWebHostServiceOptions, Microsoft.AspNetCore.Hosting, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton		ConfigureNamedOptions`1
36	System.Diagnostics.DiagnosticListener	Singleton		DiagnosticListener
37	System.Diagnostics.DiagnosticSource	Singleton		DiagnosticListener
38	Microsoft.AspNetCore.Http.IHttpContextFactory	Singleton	DefaultHttpContextFactory
39	Microsoft.AspNetCore.Http.IMiddlewareFactory	Scoped	MiddlewareFactory
40	Microsoft.AspNetCore.Hosting.Builder.IApplicationBuilderFactory	Singleton	ApplicationBuilderFactory
41	Microsoft.AspNetCore.Connections.IConnectionListenerFactory	Singleton	SocketTransportFactory
42	Microsoft.Extensions.Options.IConfigureOptions`1[[Microsoft.AspNetCore.Server.Kestrel.Core.KestrelServerOptions, Microsoft.AspNetCore.Server.Kestrel.Core, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Transient	KestrelServerOptionsSetup
43	Microsoft.AspNetCore.Hosting.Server.IServer	Singleton	KestrelServer
44	Microsoft.Extensions.Options.IConfigureOptions`1[[Microsoft.AspNetCore.Server.Kestrel.Core.KestrelServerOptions, Microsoft.AspNetCore.Server.Kestrel.Core, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton		ConfigureNamedOptions`1
45	Microsoft.Extensions.Options.IPostConfigureOptions`1[[Microsoft.AspNetCore.HostFiltering.HostFilteringOptions, Microsoft.AspNetCore.HostFiltering, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton		PostConfigureOptions`1
46	Microsoft.Extensions.Options.IOptionsChangeTokenSource`1[[Microsoft.AspNetCore.HostFiltering.HostFilteringOptions, Microsoft.AspNetCore.HostFiltering, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton		ConfigurationChangeTokenSource`1
47	Microsoft.AspNetCore.Hosting.IStartupFilter	Transient	HostFilteringStartupFilter
48	Microsoft.AspNetCore.Routing.IInlineConstraintResolver	Transient	DefaultInlineConstraintResolver
49	Microsoft.Extensions.ObjectPool.ObjectPoolProvider	Transient	DefaultObjectPoolProvider
50	Microsoft.Extensions.ObjectPool.ObjectPool`1[[Microsoft.AspNetCore.Routing.UriBuildingContext, Microsoft.AspNetCore.Routing, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton			ObjectPool`1
51	Microsoft.AspNetCore.Routing.Tree.TreeRouteBuilder	Transient			TreeRouteBuilder
52	Microsoft.AspNetCore.Routing.RoutingMarkerService	Singleton	RoutingMarkerService
53	Microsoft.Extensions.Options.IConfigureOptions`1[[Microsoft.AspNetCore.Routing.RouteOptions, Microsoft.AspNetCore.Routing, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Transient			ConfigureRouteOptions
54	Microsoft.AspNetCore.Routing.EndpointDataSource	Singleton			EndpointDataSource
55	Microsoft.AspNetCore.Routing.ParameterPolicyFactory	Singleton	DefaultParameterPolicyFactory
56	Microsoft.AspNetCore.Routing.Matching.MatcherFactory	Singleton	DfaMatcherFactory
57	Microsoft.AspNetCore.Routing.Matching.DfaMatcherBuilder	Transient	DfaMatcherBuilder
58	Microsoft.AspNetCore.Routing.Internal.DfaGraphWriter	Singleton	DfaGraphWriter
59	Microsoft.AspNetCore.Routing.Matching.DataSourceDependentMatcher+Lifetime	Transient	Lifetime
60	Microsoft.AspNetCore.Routing.Matching.EndpointMetadataComparer	Singleton			EndpointMetadataComparer
61	Microsoft.AspNetCore.Routing.LinkGenerator	Singleton	DefaultLinkGenerator
62	Microsoft.AspNetCore.Routing.IEndpointAddressScheme`1[[System.String, System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]]	Singleton	EndpointNameAddressScheme
63	Microsoft.AspNetCore.Routing.IEndpointAddressScheme`1[[Microsoft.AspNetCore.Routing.RouteValuesAddress, Microsoft.AspNetCore.Routing, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton	RouteValuesAddressScheme
64	Microsoft.AspNetCore.Routing.LinkParser	Singleton	DefaultLinkParser
65	Microsoft.AspNetCore.Routing.Matching.EndpointSelector	Singleton	DefaultEndpointSelector
66	Microsoft.AspNetCore.Routing.MatcherPolicy	Singleton	HttpMethodMatcherPolicy
67	Microsoft.AspNetCore.Routing.MatcherPolicy	Singleton	HostMatcherPolicy
68	Microsoft.AspNetCore.Routing.Template.TemplateBinderFactory	Singleton	DefaultTemplateBinderFactory
69	Microsoft.AspNetCore.Routing.Patterns.RoutePatternTransformer	Singleton	DefaultRoutePatternTransformer
70	Microsoft.AspNetCore.Mvc.ApplicationParts.ApplicationPartManager	Singleton		ApplicationPartManager
71	Microsoft.Extensions.Options.IConfigureOptions`1[[Microsoft.AspNetCore.Mvc.MvcOptions, Microsoft.AspNetCore.Mvc.Core, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Transient	MvcCoreMvcOptionsSetup
72	Microsoft.Extensions.Options.IPostConfigureOptions`1[[Microsoft.AspNetCore.Mvc.MvcOptions, Microsoft.AspNetCore.Mvc.Core, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Transient	MvcOptionsConfigureCompatibilityOptions
73	Microsoft.Extensions.Options.IPostConfigureOptions`1[[Microsoft.AspNetCore.Mvc.MvcOptions, Microsoft.AspNetCore.Mvc.Core, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Transient	MvcCoreMvcOptionsSetup
74	Microsoft.Extensions.Options.IConfigureOptions`1[[Microsoft.AspNetCore.Mvc.ApiBehaviorOptions, Microsoft.AspNetCore.Mvc.Core, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Transient	ApiBehaviorOptionsSetup
75	Microsoft.Extensions.Options.IConfigureOptions`1[[Microsoft.AspNetCore.Routing.RouteOptions, Microsoft.AspNetCore.Routing, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Transient	MvcCoreRouteOptionsSetup
76	Microsoft.AspNetCore.Mvc.ApplicationModels.ApplicationModelFactory	Singleton	ApplicationModelFactory
77	Microsoft.AspNetCore.Mvc.ApplicationModels.IApplicationModelProvider	Transient	DefaultApplicationModelProvider
78	Microsoft.AspNetCore.Mvc.ApplicationModels.IApplicationModelProvider	Transient	ApiBehaviorApplicationModelProvider
79	Microsoft.AspNetCore.Mvc.Abstractions.IActionDescriptorProvider	Transient	ControllerActionDescriptorProvider
80	Microsoft.AspNetCore.Mvc.Infrastructure.IActionDescriptorCollectionProvider	Singleton	DefaultActionDescriptorCollectionProvider
81	Microsoft.AspNetCore.Mvc.Infrastructure.IActionSelector	Singleton	ActionSelector
82	Microsoft.AspNetCore.Mvc.ActionConstraints.ActionConstraintCache	Singleton	ActionConstraintCache
83	Microsoft.AspNetCore.Mvc.ActionConstraints.IActionConstraintProvider	Transient	DefaultActionConstraintProvider
84	Microsoft.AspNetCore.Routing.MatcherPolicy	Singleton	ConsumesMatcherPolicy
85	Microsoft.AspNetCore.Routing.MatcherPolicy	Singleton	ActionConstraintMatcherPolicy
86	Microsoft.AspNetCore.Mvc.Controllers.IControllerFactory	Singleton	DefaultControllerFactory
87	Microsoft.AspNetCore.Mvc.Controllers.IControllerActivator	Transient	DefaultControllerActivator
88	Microsoft.AspNetCore.Mvc.Controllers.IControllerFactoryProvider	Singleton	ControllerFactoryProvider
89	Microsoft.AspNetCore.Mvc.Controllers.IControllerActivatorProvider	Singleton	ControllerActivatorProvider
90	Microsoft.AspNetCore.Mvc.Controllers.IControllerPropertyActivator	Transient	DefaultControllerPropertyActivator
91	Microsoft.AspNetCore.Mvc.Infrastructure.IActionInvokerFactory	Singleton	ActionInvokerFactory
92	Microsoft.AspNetCore.Mvc.Abstractions.IActionInvokerProvider	Transient	ControllerActionInvokerProvider
93	Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvokerCache	Singleton	ControllerActionInvokerCache
94	Microsoft.AspNetCore.Mvc.Filters.IFilterProvider	Singleton	DefaultFilterProvider
95	Microsoft.AspNetCore.Mvc.Infrastructure.IActionResultTypeMapper	Singleton	ActionResultTypeMapper
96	Microsoft.AspNetCore.Mvc.Filters.RequestSizeLimitFilter	Transient	RequestSizeLimitFilter
97	Microsoft.AspNetCore.Mvc.Filters.DisableRequestSizeLimitFilter	Transient	DisableRequestSizeLimitFilter
98	Microsoft.AspNetCore.Mvc.Filters.RequestFormLimitsFilter	Transient	RequestFormLimitsFilter
99	Microsoft.AspNetCore.Mvc.ModelBinding.IModelMetadataProvider	Singleton	DefaultModelMetadataProvider
100	Microsoft.AspNetCore.Mvc.ModelBinding.Metadata.ICompositeMetadataDetailsProvider	Transient			ICompositeMetadataDetailsProvider
101	Microsoft.AspNetCore.Mvc.ModelBinding.IModelBinderFactory	Singleton	ModelBinderFactory
102	Microsoft.AspNetCore.Mvc.ModelBinding.Validation.IObjectModelValidator	Singleton			IObjectModelValidator
103	Microsoft.AspNetCore.Mvc.ModelBinding.Validation.ClientValidatorCache	Singleton	ClientValidatorCache
104	Microsoft.AspNetCore.Mvc.ModelBinding.ParameterBinder	Singleton	ParameterBinder
105	Microsoft.Extensions.DependencyInjection.MvcMarkerService	Singleton	MvcMarkerService
106	Microsoft.AspNetCore.Mvc.Infrastructure.ITypeActivatorCache	Singleton	TypeActivatorCache
107	Microsoft.AspNetCore.Mvc.Routing.IUrlHelperFactory	Singleton	UrlHelperFactory
108	Microsoft.AspNetCore.Mvc.Infrastructure.IHttpRequestStreamReaderFactory	Singleton	MemoryPoolHttpRequestStreamReaderFactory
109	Microsoft.AspNetCore.Mvc.Infrastructure.IHttpResponseStreamWriterFactory	Singleton	MemoryPoolHttpResponseStreamWriterFactory
110	System.Buffers.ArrayPool`1[[System.Byte, System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]]	Singleton		TlsOverPerCoreLockedStacksArrayPool`1
111	System.Buffers.ArrayPool`1[[System.Char, System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]]	Singleton		TlsOverPerCoreLockedStacksArrayPool`1
112	Microsoft.AspNetCore.Mvc.Infrastructure.OutputFormatterSelector	Singleton	DefaultOutputFormatterSelector
113	Microsoft.AspNetCore.Mvc.Infrastructure.IActionResultExecutor`1[[Microsoft.AspNetCore.Mvc.ObjectResult, Microsoft.AspNetCore.Mvc.Core, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton	ObjectResultExecutor
114	Microsoft.AspNetCore.Mvc.Infrastructure.IActionResultExecutor`1[[Microsoft.AspNetCore.Mvc.PhysicalFileResult, Microsoft.AspNetCore.Mvc.Core, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton	PhysicalFileResultExecutor
115	Microsoft.AspNetCore.Mvc.Infrastructure.IActionResultExecutor`1[[Microsoft.AspNetCore.Mvc.VirtualFileResult, Microsoft.AspNetCore.Mvc.Core, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton	VirtualFileResultExecutor
116	Microsoft.AspNetCore.Mvc.Infrastructure.IActionResultExecutor`1[[Microsoft.AspNetCore.Mvc.FileStreamResult, Microsoft.AspNetCore.Mvc.Core, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton	FileStreamResultExecutor
117	Microsoft.AspNetCore.Mvc.Infrastructure.IActionResultExecutor`1[[Microsoft.AspNetCore.Mvc.FileContentResult, Microsoft.AspNetCore.Mvc.Core, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton	FileContentResultExecutor
118	Microsoft.AspNetCore.Mvc.Infrastructure.IActionResultExecutor`1[[Microsoft.AspNetCore.Mvc.RedirectResult, Microsoft.AspNetCore.Mvc.Core, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton	RedirectResultExecutor
119	Microsoft.AspNetCore.Mvc.Infrastructure.IActionResultExecutor`1[[Microsoft.AspNetCore.Mvc.LocalRedirectResult, Microsoft.AspNetCore.Mvc.Core, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton	LocalRedirectResultExecutor
120	Microsoft.AspNetCore.Mvc.Infrastructure.IActionResultExecutor`1[[Microsoft.AspNetCore.Mvc.RedirectToActionResult, Microsoft.AspNetCore.Mvc.Core, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton	RedirectToActionResultExecutor
121	Microsoft.AspNetCore.Mvc.Infrastructure.IActionResultExecutor`1[[Microsoft.AspNetCore.Mvc.RedirectToRouteResult, Microsoft.AspNetCore.Mvc.Core, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton	RedirectToRouteResultExecutor
122	Microsoft.AspNetCore.Mvc.Infrastructure.IActionResultExecutor`1[[Microsoft.AspNetCore.Mvc.RedirectToPageResult, Microsoft.AspNetCore.Mvc.Core, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton	RedirectToPageResultExecutor
123	Microsoft.AspNetCore.Mvc.Infrastructure.IActionResultExecutor`1[[Microsoft.AspNetCore.Mvc.ContentResult, Microsoft.AspNetCore.Mvc.Core, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton	ContentResultExecutor
124	Microsoft.AspNetCore.Mvc.Infrastructure.IActionResultExecutor`1[[Microsoft.AspNetCore.Mvc.JsonResult, Microsoft.AspNetCore.Mvc.Core, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton	SystemTextJsonResultExecutor
125	Microsoft.AspNetCore.Mvc.Infrastructure.IClientErrorFactory	Singleton	ProblemDetailsClientErrorFactory
126	Microsoft.AspNetCore.Mvc.Infrastructure.ProblemDetailsFactory	Singleton	DefaultProblemDetailsFactory
127	Microsoft.AspNetCore.Mvc.Routing.MvcRouteHandler	Singleton	MvcRouteHandler
128	Microsoft.AspNetCore.Mvc.Routing.MvcAttributeRouteHandler	Transient	MvcAttributeRouteHandler
129	Microsoft.AspNetCore.Mvc.Routing.ControllerActionEndpointDataSource	Singleton	ControllerActionEndpointDataSource
130	Microsoft.AspNetCore.Mvc.Routing.ActionEndpointFactory	Singleton	ActionEndpointFactory
131	Microsoft.AspNetCore.Mvc.Routing.DynamicControllerEndpointSelector	Singleton	DynamicControllerEndpointSelector
132	Microsoft.AspNetCore.Routing.MatcherPolicy	Singleton	DynamicControllerEndpointMatcherPolicy
133	Microsoft.AspNetCore.Mvc.Filters.MiddlewareFilterConfigurationProvider	Singleton	MiddlewareFilterConfigurationProvider
134	Microsoft.AspNetCore.Mvc.Filters.MiddlewareFilterBuilder	Singleton	MiddlewareFilterBuilder
135	Microsoft.AspNetCore.Hosting.IStartupFilter	Singleton	MiddlewareFilterBuilderStartupFilter
136	Microsoft.AspNetCore.Mvc.ApiExplorer.IApiDescriptionGroupCollectionProvider	Singleton	ApiDescriptionGroupCollectionProvider
137	Microsoft.AspNetCore.Mvc.ApiExplorer.IApiDescriptionProvider	Transient	DefaultApiDescriptionProvider
138	Microsoft.AspNetCore.Authentication.IAuthenticationService	Scoped	AuthenticationService
139	Microsoft.AspNetCore.Authentication.IClaimsTransformation	Singleton	NoopClaimsTransformation
140	Microsoft.AspNetCore.Authentication.IAuthenticationHandlerProvider	Scoped	AuthenticationHandlerProvider
141	Microsoft.AspNetCore.Authentication.IAuthenticationSchemeProvider	Singleton	AuthenticationSchemeProvider
142	Microsoft.AspNetCore.Authorization.IAuthorizationService	Transient	DefaultAuthorizationService
143	Microsoft.AspNetCore.Authorization.IAuthorizationPolicyProvider	Transient	DefaultAuthorizationPolicyProvider
144	Microsoft.AspNetCore.Authorization.IAuthorizationHandlerProvider	Transient	DefaultAuthorizationHandlerProvider
145	Microsoft.AspNetCore.Authorization.IAuthorizationEvaluator	Transient	DefaultAuthorizationEvaluator
146	Microsoft.AspNetCore.Authorization.IAuthorizationHandlerContextFactory	Transient	DefaultAuthorizationHandlerContextFactory
147	Microsoft.AspNetCore.Authorization.IAuthorizationHandler	Transient	PassThroughAuthorizationHandler
148	Microsoft.AspNetCore.Authorization.Policy.AuthorizationPolicyMarkerService	Singleton	AuthorizationPolicyMarkerService
149	Microsoft.AspNetCore.Authorization.Policy.IPolicyEvaluator	Transient	PolicyEvaluator
150	Microsoft.AspNetCore.Mvc.ApplicationModels.IApplicationModelProvider	Transient	AuthorizationApplicationModelProvider
151	Microsoft.AspNetCore.Cors.Infrastructure.ICorsService	Transient	CorsService
152	Microsoft.AspNetCore.Cors.Infrastructure.ICorsPolicyProvider	Transient	DefaultCorsPolicyProvider
153	Microsoft.AspNetCore.Mvc.ApplicationModels.IApplicationModelProvider	Transient	CorsApplicationModelProvider
154	Microsoft.AspNetCore.Mvc.Cors.CorsAuthorizationFilter	Transient	CorsAuthorizationFilter
155	Microsoft.Extensions.Options.IConfigureOptions`1[[Microsoft.AspNetCore.Mvc.MvcOptions, Microsoft.AspNetCore.Mvc.Core, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Transient	MvcDataAnnotationsMvcOptionsSetup
156	Microsoft.AspNetCore.Mvc.DataAnnotations.IValidationAttributeAdapterProvider	Singleton	ValidationAttributeAdapterProvider
157	Microsoft.AspNetCore.Mvc.Formatters.FormatFilter	Singleton	FormatFilter
158	Microsoft.Extensions.Options.IConfigureOptions`1[[Microsoft.AspNetCore.Hosting.GenericWebHostServiceOptions, Microsoft.AspNetCore.Hosting, Version=3.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]]	Singleton		ConfigureNamedOptions`1
159	Microsoft.Extensions.Hosting.IHostedService	Singleton	GenericWebHostService

我的 Bootstrap 使用 VS Code 的學習工具

更多關於 Blazor 教學影片，可以參考 Blazor 教學影片播放清單 或者 Blazor 快速體驗教學影片撥放清單。也歡迎訂閱本 .NET / Blazor / Xamarin.Forms 影片頻道 。

今年 2019 年， ASP.NET Core 3.0 正式推出支援 Blazor Server ，所以，對於我而言，現在正是一個回歸到網頁開發的好時機，因為，當在進行網站開發的時候，退去的 JavaScript 程式語言，與其相關開發框架，jQuery, Angular , Reace, Vue 等等，對於身為一個 .NET 開發者而言，想要進軍網站開發應用程式之列，就僅剩下了 CSS / Bootstrap 了 。

因此，我決定使用底下工具來進行學習如何使用 Bootstrap 4.x 的工具。

• Visual Studio Code
• Live Server
• Prettier - Code formatter
• vscode-icons

接著，請點選左下角的齒輪圖示，選擇 [設定] 選項，接著，請使用 [使用者] 模式來進行設定

• 請搜尋 Editor.FormatOnSave 這個文字，將其設定為啟用狀態
• 請搜尋 Editor.FontSize 這個文字，設定適當的大小
• 請搜尋 Editor.wordWrap 這個文字，設定為 on