在Azure中的ASP.NET Core 3.1应用程序中，获取swagger ui返回404

Question

加载/swagger/index.html页面时，浏览器找不到部署到Azure中的应用程序服务时所需的swagger-ui资源，返回404。它在本地运行时有效。我的设置是：

services.AddSwaggerGen(options =>
{
options.SwaggerDoc("v1", new OpenApiInfo
{
Title = "Nexus WebApp",
Version = "v1"
});
options.CustomSchemaIds(type => type.ToString());

});

var builder = endpoints.CreateApplicationBuilder();
builder.UseSwagger();
builder.UseSwaggerUI(options =>
{
options.SwaggerEndpoint("/swagger/v1/swagger.json", "Nexus WebApp");
});
var pipeline = builder.Build();
endpoints.Map("/swagger", pipeline)
.RequireAuthorization(new AuthorizeAttribute());
endpoints.Map("/swagger/index.html", pipeline)
.RequireAuthorization(new AuthorizeAttribute());
endpoints.Map("/swagger/{documentName}/swagger.json", pipeline)
.RequireAuthorization(new AuthorizeAttribute());

我已经尝试过使用类似于..swaggerv1/swagger.json的swagger端点的相对路径，不幸的是，我尝试过指定RoutePrefix，但都没有成功。我知道有人问过类似的问题，但不幸的是，似乎都没有帮助。

有人有线索吗？

更新

这些是它返回404的资源：

• https://{domain}/swagger/swagger-ui.css
• https://{domain}/swagger/swagger-ui-standalone-preset.js
• https://{domain}/swagger/swagger-ui-bundle.js

Answer 1

我怀疑您的实现是错误的。以下是在NET Core中设置Swagger UI的完整Startup代码：

using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Swashbuckle.AspNetCore.Swagger;
namespace IDGSwaggerDemo
{
public class Startup
{
public Startup(IConfiguration configuration)
{
Configuration = configuration;
}
public IConfiguration Configuration { get; }
public void ConfigureServices(IServiceCollection services)
{
services.AddMvc().SetCompatibilityVersion
(CompatibilityVersion.Version_2_2);   
services.AddSwaggerGen(c =>
{
c.SwaggerDoc("v1", new Info
{
Version = "v1",
Title = "Swagger Demo",
Description = "Swagger Demo for ValuesController",
TermsOfService = "None",
Contact = new Contact() { Name = "Joydip Kanjilal",
Email = "[e-mail]",
Url = "www.google.com"
}
});
});
}
public void Configure(IApplicationBuilder app,
IHostingEnvironment env)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
app.UseMvc();
app.UseSwagger();
app.UseSwaggerUI(c =>
{
c.SwaggerEndpoint("/swagger/v1/swagger.json", "v1");
});
}
}
}

查看本教程了解更多增强的Swagger实现。

Answer 2

最后，在与此斗争了几个小时后，我设法让它工作起来。请注意，我有一个特殊的要求，即我拥有一个Web API，我希望控制器使用Bearer令牌身份验证，同时我希望Swagger UI受到OIDC的保护。

我在课堂上遗漏了与这个答案无关的部分。

var builder = WebApplication.CreateBuilder(args);
builder.Services.AddMvc();
// Add authentication to web API
builder.Services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
.AddMicrosoftIdentityWebApi(builder.Configuration);
// Add authentication to web app for Swagger authorization
builder.Services.AddAuthentication(OpenIdConnectDefaults.AuthenticationScheme)
.AddMicrosoftIdentityWebApp(builder.Configuration);
builder.Services.AddSwaggerGen();
builder.Services.AddAuthorization(options =>
{
options.DefaultPolicy = new AuthorizationPolicyBuilder(JwtBearerDefaults.AuthenticationScheme)
.RequireAuthenticatedUser()
.Build();
});

var app = builder.Build();
app.UseAuthentication();
app.UseAuthorization();
app.Use(async (context, next) =>
{
if (context.Request.Path.StartsWithSegments("/swagger") && context.User.Identity?.IsAuthenticated == false)
{
await context.ChallengeAsync(OpenIdConnectDefaults.AuthenticationScheme);
}
else
{
await next();
}
});
app.UseSwagger();
app.UseSwaggerUI(c =>
{
c.SwaggerEndpoint("/swagger/v1/swagger.json", "API v1");
});
app.MapControllers();
app.Run();