using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.DependencyInjection;
namespace WebApplication2
{
public class Startup
{
// This method gets called by the runtime. Use this method to add services to the container.
// For more information on how to configure your application, visit https://go.microsoft.com/fwlink/?LinkID=398940
public void ConfigureServices(IServiceCollection services)
{
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
//map无回路
app.Map(new PathString("/filter"), (builder) =>
{
builder.Run(async (context) =>
{
await context.Response.WriteAsync("I am filter!");
});
});
app.MapWhen(context =>
{
return context.Request.Path.Value.StartsWith("/filterwhen");
}, builder =>
{
builder.Run(async (context) =>
{
await context.Response.WriteAsync("I am filterwhen!");
});
});
//use有回头路
app.UseWhen(context =>
{
return context.Request.Path.Value.StartsWith("/usewhen");
}, builder =>
{
builder.Use(async (context, next) =>
{
await next();
});
});
app.Run(async (context) =>
{
await context.Response.WriteAsync("Hello World!");
});
}
}
}