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using Microsoft.AspNetCore.Hosting; //IWebHostBuilder using Microsoft.AspNetCore.Builder; //IApplicationBuilder using Microsoft.AspNetCore.Http; //WriteAsync using Microsoft.AspNetCore; //webHost using System.IO; using System.Threading.Tasks; namespace WebApplication1 { public class Startup { public void Configure(IApplicationBuilder app) { //We use it the type so it is clear. We will use the shortened version from now on. //app.Use(next => context => FilterAsync(context, next)); app.Use((RequestDelegate next) => { return (HttpContext context) => BufferAsync(context, next); }); app.Run(async context => { context.Response.Headers.Add("content-type", "text/html"); await context.Response.WriteAsync("<h1>This sample uses buffering</h1>"); await context.Response.WriteAsync("<p>This allows all your Middlewares to write to Response.</p>"); }); } public async Task BufferAsync(HttpContext context, RequestDelegate next) { var body = context.Response.Body; var buffer = new MemoryStream(); context.Response.Body = buffer; try { await context.Response.WriteAsync("<html><body>"); await next(context); await context.Response.WriteAsync("</body></html>"); buffer.Position = 0; await buffer.CopyToAsync(body); } finally { context.Response.Body = body; } } } 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"); } } |
결과 : This sample uses buffering
This allows all your Middlewares to write to Response.