ASP. NET 5 getting started -- Application Startup, asp. netstartup

ASP. NET 5 getting started -- Application Startup, asp. netstartup
ASP. NET 5 getting started -- Application Startup class Startup ¶

In ASP. NET 5,StartupClass is the entry point of an application. We can configure different content for different environments.

The compiler will find all*.csFile, and the runtime will look for the class names under all namespacesStartupAs the startup method.

Annotation

You can setproject.jsonSelect the files and folders to be compiled (or not required). You can also search for files in different programming sets.StartupClass.

StartupClass must defineConfigureMethod, you can also defineConfigureServicesMethod.

ConfigureServices method ingress ¶

ConfigureServicesDefines the services we use, such as MVC, EF, Identity, Logging, and Route. You can also customize some services.

In the following example, the EntityFramework (for data accessconfig.jsonCorrectly set the connection string), Identity (for Identity Authentication/login), and MVC.

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.    services.AddTransient<IEmailSender, AuthMessageSender>();    services.AddTransient<ISmsSender, AuthMessageSender>();}

After callingConfigureServicesThen, it is calledConfigureMethod.

Configure method ingress ¶

ConfigureThe method signature must containIApplicationBuilderCan also contain some other WufuIHostingEnvironmentAndILoggerFactory.

Public void Configure (IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory) {// output log loggerFactory in the console. addConsole (Configuration. getSection ("Logging"); loggerFactory. addDebug (); // In the development environment, the error details if (env. isDevelopment () {app. useBrowserLink (); app. usemediaexceptionpage (); app. useDatabaseErrorPage ();} else {// otherwise, direct the error page app. useExceptionHandler ("/Home/Error"); // create data Library try {using (var servicelist = app. applicationServices. getRequiredService <IServiceScopeFactory> (). createid () {serviceid. serviceProvider. getService <ApplicationDbContext> (). database. migrate () ;}} catch {}} app. useIISPlatformHandler (options => options. authenticationDescriptions. clear (); // allow access to the static file app in the wwwroot folder. useStaticFiles (); // sets the authentication method app. useIdentity (); // sets the MVC routing app. useMvc (r Outes => {routes. MapRoute (name: "default", template: "{controller = Home}/{action = Index}/{id ?} ");});}

Warning

The MVC routing method must beConfigure, Only inConfigureServicesIs invalid.