|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 |
using Microsoft.AspNetCore.Hosting; //IWebHostBuilder using Microsoft.AspNetCore.Builder; //IApplicationBuilder using Microsoft.AspNetCore.Http; //WriteAsync using Microsoft.AspNetCore; //webHost using Microsoft.Extensions.Logging;//ILoggerFactory using Microsoft.Extensions.DependencyInjection; // IServiceCollection using System.Threading.Tasks; using System; //IStartupFilter namespace WebApplication1 { public class GreetingStartupFilter : IStartupFilter { public Action<IApplicationBuilder> Configure(Action<IApplicationBuilder> next) { return builder => { builder.UseMiddleware<GreetingMiddleware>(); builder.UseMiddleware<HelloWorldMiddleware>(); next(builder); }; } } public class HelloWorldMiddleware { public HelloWorldMiddleware(RequestDelegate next) { } public async Task Invoke(HttpContext context) { await context.Response.WriteAsync($"{context.Items["Greetings"]}"); } } public class GreetingMiddleware { RequestDelegate _next; public GreetingMiddleware(RequestDelegate next) { _next = next; } public async Task Invoke(HttpContext context) { context.Items["Greetings"] = "Hello world from GreetingMiddleware"; await _next(context); } } public class Startup { public Startup(IHostingEnvironment env, ILoggerFactory logger) { //These are two services available at constructor } public void ConfigureServices(IServiceCollection services) { services.AddTransient<IStartupFilter, GreetingStartupFilter>(); } public void Configure(IApplicationBuilder app) { } } public class Program { public static void Main(string[] args) { CreateWebHostBuilder(args).Build().Run(); } public static IWebHostBuilder CreateWebHostBuilder(string[] args) => WebHost.CreateDefaultBuilder(args) .UseStartup<Startup>() .UseEnvironment("Development"); //You can change this to "Production" to use StartupProduction } } |
결과 :
Hello world from GreetingMiddleware