Asp.net core Swagger和.Net COre找不到custom.css

我已经用.NETCore3.0构建了一个API项目，添加了Swagger 5.rc4来显示API文档

我想自定义CSS，因此我在启动中添加了CSS。配置：

app.UseSwaggerUI(c =>
{
    c.SwaggerEndpoint("/swagger/v1/swagger.json", "Geo API");
    c.RoutePrefix = "docs";
    c.DocumentTitle = "GeoData APIs";
    c.DisplayRequestDuration();
    c.EnableFilter();
    c.InjectStylesheet("/swagger-ui/custom.css");
});

我可以在localhost:8888/docs/index.html上看到招摇过市页面，但我无法让它加载custom.css

在我的项目中，我创建了一个包含custom.css文件的文件夹“swagger ui”，并设置为复制到输出目录。我可以正确地看到它，在我编译时的swagger ui文件夹中，在bin文件夹中，但无法从浏览器中看到它

---

我还添加了app.UseStaticFiles（）；但是没有任何变化。

您可以尝试以下步骤：

创建Asp.NET核心Web API 3.0

编辑csproj以添加以下参考：

<PackageReference Include="Swashbuckle.AspNetCore" Version="5.0.0-rc4" />

更改

Startup.cs

public class Startup
{
    public Startup(IConfiguration configuration)
    {
        Configuration = configuration;
    }

    public IConfiguration Configuration { get; }

    // This method gets called by the runtime. Use this method to add services to the container.
    public void ConfigureServices(IServiceCollection services)
    {
        services.AddControllersWithViews().AddNewtonsoftJson();
        services.AddSwaggerGen(c =>
        {
            c.SwaggerDoc("v1", new OpenApiInfo { Title = "My API", Version = "v1" });
        });

    }

    // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
    public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
    {
        if (env.IsDevelopment())
        {
            app.UseDeveloperExceptionPage();
        }
        else
        {
            app.UseExceptionHandler("/Home/Error");
            // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
            app.UseHsts();
        }
        app.UseHttpsRedirection();
        app.UseStaticFiles();

        app.UseRouting();

        app.UseAuthorization();
        app.UseSwagger();
        app.UseSwaggerUI(c =>
        {
            c.SwaggerEndpoint("/swagger/v1/swagger.json", "Geo API");
            c.RoutePrefix = "docs";
            c.DocumentTitle = "GeoData APIs";
            c.DisplayRequestDuration();
            c.EnableFilter();
            c.InjectStylesheet("/swagger-ui/custom.css");
        });            

        app.UseEndpoints(endpoints =>
        {
            endpoints.MapControllerRoute(
                name: "default",
                pattern: "{controller=Home}/{action=Index}/{id?}");
        });
    }
}

---

您是否在webapi的wwwroot文件夹中创建了swagger ui文件夹？@haldo是的，在那里可以显示启动配置方法的顺序吗？路由前是否使用StaticFiles，最后是否使用UseSwaggerUI？

public class Startup
{
    public Startup(IConfiguration configuration)
    {
        Configuration = configuration;
    }

    public IConfiguration Configuration { get; }

    // This method gets called by the runtime. Use this method to add services to the container.
    public void ConfigureServices(IServiceCollection services)
    {
        services.AddControllersWithViews().AddNewtonsoftJson();
        services.AddSwaggerGen(c =>
        {
            c.SwaggerDoc("v1", new OpenApiInfo { Title = "My API", Version = "v1" });
        });

    }

    // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
    public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
    {
        if (env.IsDevelopment())
        {
            app.UseDeveloperExceptionPage();
        }
        else
        {
            app.UseExceptionHandler("/Home/Error");
            // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
            app.UseHsts();
        }
        app.UseHttpsRedirection();
        app.UseStaticFiles();

        app.UseRouting();

        app.UseAuthorization();
        app.UseSwagger();
        app.UseSwaggerUI(c =>
        {
            c.SwaggerEndpoint("/swagger/v1/swagger.json", "Geo API");
            c.RoutePrefix = "docs";
            c.DocumentTitle = "GeoData APIs";
            c.DisplayRequestDuration();
            c.EnableFilter();
            c.InjectStylesheet("/swagger-ui/custom.css");
        });            

        app.UseEndpoints(endpoints =>
        {
            endpoints.MapControllerRoute(
                name: "default",
                pattern: "{controller=Home}/{action=Index}/{id?}");
        });
    }
}