NET5实践：项目创建-结构概述-程序运行-发布部署 ASP.NET5实践01：项目创建-结构概述-程序运行-发布部署

  "frameworks": {
    "dnx451": { },
    "dnxcore50": { }
  },

namespace MyWeb
{
    public class Startup
    {
        /// <summary>
        /// 构造函数
        /// </summary>
        /// <param name="env">web宿主环境中运行应用程序的信息</param>
        public Startup(IHostingEnvironment env)
        {
        //用于生成应用程序中使用的基于的键/值配置设置 对象创建
            var builder = new ConfigurationBuilder()
                //将 JSON 配置提供程序的路径添加到 configurationBuilder
                .AddJsonFile("appsettings.json")
                //获取或设置的环境的名称，自动设置此属性
                //如果optional为fales时，就不用此设置。
                .AddJsonFile($"appsettings.{env.EnvironmentName}.json", optional: true);

            //如果是开发环境
            if (env.IsDevelopment())
            {
                 //http://go.microsoft.com/fwlink/?LinkID=532709
                 builder.AddUserSecrets();
            }

            //添加读取IConfigurationProvider环境变量的配置值
            builder.AddEnvironmentVariables();
            //生成IConfiguration 键和值
            //从提供程序集在IConfigurationBuilder.Providers 注册
            Configuration = builder.Build();
        }

        /// <summary>
        /// 键/值应用程序配置根属性，继承IConfiguration
        /// </summary>
        public IConfigurationRoot Configuration { get; set; }

        /// <summary>
        /// 程序运行时调用此方法来添加一些服务到容器中
        /// </summary>
        /// <param name="services">服务集合</param>
        public void ConfigureServices(IServiceCollection services)
        {
            // Add framework services.
            services.AddEntityFramework()
                .AddSqlServer()
                .AddDbContext<ApplicationDbContext>(options =>
                    options.UseSqlServer(
                    Configuration["Data:DefaultConnection:ConnectionString"]));

            services.AddIdentity<ApplicationUser, IdentityRole>()
                .AddEntityFrameworkStores<ApplicationDbContext>()
                .AddDefaultTokenProviders();

            services.AddMvc();

            // Add application services.
            // 使用依赖注入
            services.AddTransient<IEmailSender, AuthMessageSender>();
            services.AddTransient<ISmsSender, AuthMessageSender>();
        }
        
        /// <summary>
        /// 配置，通常有些中间件调用需要配置等
        /// </summary>
        /// <param name="app">配置应用程序的请求管道</param>
        /// <param name="env"></param>
        /// <param name="loggerFactory">日志中间件</param>
        public void Configure(IApplicationBuilder app, IHostingEnvironment env, 
             ILoggerFactory loggerFactory)
        {
            loggerFactory.AddConsole(Configuration.GetSection("Logging"));
            loggerFactory.AddDebug();

            if (env.IsDevelopment())
            {
                app.UseBrowserLink();
                app.UseDeveloperExceptionPage();
                app.UseDatabaseErrorPage();
            }
            else
            {
                app.UseExceptionHandler("/Home/Error");
                try
                {
                    using (var serviceScope = app.ApplicationServices
                     .GetRequiredService<IServiceScopeFactory>().CreateScope())
                    {
                        serviceScope.ServiceProvider.GetService<ApplicationDbContext>()
                             .Database.Migrate();
                    }
                }
                catch { }
            }

            //IIS HttpPlatformHandler 反向代理服务器进行交互的中间件模块
            app.UseIISPlatformHandler(options => options.AuthenticationDescriptions.Clear());
           
            app.UseStaticFiles();            
            app.UseIdentity();

            //配置路由
            app.UseMvc(routes =>
            {
                routes.MapRoute(
                  name: "areaRoute",
                  template: "{area:exists}/{controller}/{action}",
                  defaults: new { action = "Index" });

                routes.MapRoute(
                    name: "default",
                    template: "{controller=Home}/{action=Index}/{id?}");

                routes.MapRoute(
                  name: "api",
                  template: "{controller}/{id?}");
            });

        }

        // Entry point for the application.
        public static void Main(string[] args) => WebApplication.Run<Startup>(args);
    }
}

  "commands": {
    "web": "Microsoft.AspNet.Server.Kestrel",
    "ef": "EntityFramework.Commands"
  },