c# - ASP.NET Core 中的 ConfigureServices() 和 Configure() 有什么区别？

Question

learn.microsoft.com 上的文档说明如下:

Use ConfigureServices method to add services to the container.

Use Configure method to configure the HTTP request pipeline.

谁能用简单的例子解释一下，什么是向容器添加服务，什么是配置 HTTP 请求管道？

Answer 1

简而言之:

ConfigureServices用于配置依赖注入(inject)

public void ConfigureServices(IServiceCollection services)
{
    // register MVC services
    services.AddMvc();

    // register configuration
    services.Configure<AppConfiguration>(Configuration.GetSection("RestCalls")); 

    // register custom services
    services.AddScoped<IUserService, UserService>();
    ...
}

Configure用于设置中间件、路由规则等

public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
    // configure middlewares
    app.UseMiddleware<RequestResponseLoggingMiddleware>();
    app.UseMiddleware<ExceptionHandleMiddleware>();

    app.UseStaticFiles();

    // setup routing
    app.UseMvc(routes =>
    {
        routes.MapRoute(
            name: "Default",
            template: "{controller}/{action}/{id}",
            defaults: new { controller = "Home", action = "Index", id = 1 });

    });
}

阅读ASP.NET Core fundamentals详细了解它的工作原理。