asp.net 5

相关学习地址：http://www.cnblogs.com/TomXu/p/4496545.html

以下计算视图执行的时间

using System;using System.Collections.Generic;using System.Diagnostics;using System.Linq;using System.Threading.Tasks;using Microsoft.AspNet.Authentication.Facebook;using Microsoft.AspNet.Authentication.Google;using Microsoft.AspNet.Authentication.MicrosoftAccount;using Microsoft.AspNet.Authentication.Twitter;using Microsoft.AspNet.Builder;using Microsoft.AspNet.Diagnostics;using Microsoft.AspNet.Diagnostics.Entity;using Microsoft.AspNet.Hosting;using Microsoft.AspNet.Http;using Microsoft.AspNet.Identity;using Microsoft.AspNet.Identity.EntityFramework;using Microsoft.AspNet.Routing;using Microsoft.Data.Entity;using Microsoft.Framework.Configuration;using Microsoft.Framework.DependencyInjection;using Microsoft.Framework.Logging;using Microsoft.Framework.Logging.Console;using Microsoft.Framework.Runtime;using WebApplication2.Models;using WebApplication2.Services;namespace WebApplication2{    public class Startup    {        public Startup(IHostingEnvironment env, IApplicationEnvironment appEnv)        {            // Setup configuration sources.            var builder = new ConfigurationBuilder(appEnv.ApplicationBasePath)                .AddJsonFile("config.json")                .AddJsonFile($"config.{env.EnvironmentName}.json", optional: true);            if (env.IsDevelopment())            {                // This reads the configuration keys from the secret store.                // For more details on using the user secret store see http://go.microsoft.com/fwlink/?LinkID=532709                builder.AddUserSecrets();            }            builder.AddEnvironmentVariables();            Configuration = builder.Build();        }        public IConfiguration Configuration { get; set; }        // This method gets called by the runtime. Use this method to add services to the container.        public void ConfigureServices(IServiceCollection services)        {            // Add Entity Framework services to the services container.            services.AddEntityFramework()                .AddSqlServer()                .AddDbContext<ApplicationDbContext>(options =>                    options.UseSqlServer(Configuration["Data:DefaultConnection:ConnectionString"]));            // Add Identity services to the services container.            services.AddIdentity<ApplicationUser, IdentityRole>()                .AddEntityFrameworkStores<ApplicationDbContext>()                .AddDefaultTokenProviders();            // Configure the options for the authentication middleware.            // You can add options for Google, Twitter and other middleware as shown below.            // For more information see http://go.microsoft.com/fwlink/?LinkID=532715            services.Configure<FacebookAuthenticationOptions>(options =>            {                                options.AppId = Configuration["Authentication:Facebook:AppId"];                options.AppSecret = Configuration["Authentication:Facebook:AppSecret"];            });            services.Configure<MicrosoftAccountAuthenticationOptions>(options =>            {                options.ClientId = Configuration["Authentication:MicrosoftAccount:ClientId"];                options.ClientSecret = Configuration["Authentication:MicrosoftAccount:ClientSecret"];            });            // Add MVC services to the services container.            services.AddMvc();            // Uncomment the following line to add Web API services which makes it easier to port Web API 2 controllers.            // You will also need to add the Microsoft.AspNet.Mvc.WebApiCompatShim package to the 'dependencies' section of project.json.            // services.AddWebApiConventions();            // Register application services.            services.AddTransient<IEmailSender, AuthMessageSender>();            services.AddTransient<ISmsSender, AuthMessageSender>();        }        // Configure is called after ConfigureServices is called.        public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)        {            app.UseMiddleware<TimeRecorderMiddleware>();                        loggerFactory.MinimumLevel = LogLevel.Information;            loggerFactory.AddConsole();            // Configure the HTTP request pipeline.            // Add the following to the request pipeline only in development environment.            if (env.IsDevelopment())            {                app.UseBrowserLink();                app.UseErrorPage(ErrorPageOptions.ShowAll);                app.UseDatabaseErrorPage(DatabaseErrorPageOptions.ShowAll);            }            else            {                // Add Error handling middleware which catches all application specific errors and                // sends the request to the following path or controller action.                app.UseErrorHandler("/Home/Error");            }            // Add static files to the request pipeline.            app.UseStaticFiles();            // Add cookie-based authentication to the request pipeline.            app.UseIdentity();            // Add authentication middleware to the request pipeline. You can configure options such as Id and Secret in the ConfigureServices method.            // For more information see http://go.microsoft.com/fwlink/?LinkID=532715            // app.UseFacebookAuthentication();            // app.UseGoogleAuthentication();            // app.UseMicrosoftAccountAuthentication();            // app.UseTwitterAuthentication();            // Add MVC to the request pipeline.            app.UseMvc(routes =>            {                routes.MapRoute(                    name: "default",                    template: "{controller=Home}/{action=Index}/{id?}");                // Uncomment the following line to add a route for porting Web API 2 controllers.                // routes.MapWebApiRoute("DefaultApi", "api/{controller}/{id?}");            });        }    }    public class TimeRecorderMiddleware    {        RequestDelegate _next;        public TimeRecorderMiddleware(RequestDelegate next)        {            _next = next;        }        public async Task Invoke(HttpContext context)        {            var sw = new Stopwatch();            sw.Start();            await _next(context);            var newDiv = @"<div id=""process"">页面处理时间：{0} 毫秒</div></body>";            var text = string.Format(newDiv, sw.ElapsedMilliseconds);            await context.Response.WriteAsync(text);        }    }}