IApplicationBuilder 不包含 UseAzureAppConfiguration 的定义

Question

在 this and that 之后，我一直在尝试在我的 Blazor 应用程序中实施功能管理，但出于某种原因，我的程序拒绝接受“UseAzureAppConfiguration”，即使我应该有正确的用法和包。

这是我的 Startup.cs:

using Microsoft.AspNetCore.Authentication.OpenIdConnect;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.Identity.Web;
using Microsoft.Identity.Web.UI;
using Microsoft.FeatureManagement;

namespace OreNoAppu
{
    public class Startup
    {
        public IConfiguration Configuration { get; }

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

        // 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)
        {
            services.AddAuthentication(OpenIdConnectDefaults.AuthenticationScheme)
                .AddMicrosoftIdentityWebApp(Configuration.GetSection("AzureAd"));
            services.AddControllersWithViews().AddMicrosoftIdentityUI();

            // By default, all incoming requests will be authorized according to the default policy
            services.AddAuthorization(options => options.FallbackPolicy = options.DefaultPolicy);

            services.AddRazorPages();
            services.AddServerSideBlazor().AddMicrosoftIdentityConsentHandler();
            services.AddFeatureManagement();
        }

        // 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("/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.UseAzureAppConfiguration();     // "Does not contain definition" error.

            app.UseAuthentication();
            app.UseAuthorization();

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllers();
                endpoints.MapBlazorHub();
                endpoints.MapFallbackToPage("/_Host");
            });
        }
    }
}

这些是我的核心：

  <ItemGroup>
    <PackageReference Include="Azure.Identity" Version="1.4.1" />
    <PackageReference Include="Azure.Security.KeyVault.Secrets" Version="4.2.0" />
    <PackageReference Include="BlazorPro.Spinkit" Version="1.2.0" />
    <PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="5.0.4" NoWarn="NU1605" />
    <PackageReference Include="Microsoft.AspNetCore.Authentication.OpenIdConnect" Version="5.0.4" NoWarn="NU1605" />
    <PackageReference Include="Microsoft.Extensions.Configuration.AzureAppConfiguration" Version="4.5.0" />
    <PackageReference Include="Microsoft.FeatureManagement.AspNetCore" Version="2.4.0" />
    <PackageReference Include="Microsoft.Identity.Web" Version="1.1.0" />
    <PackageReference Include="Microsoft.Identity.Web.UI" Version="1.1.0" />
  </ItemGroup>

有人知道为什么找不到方法吗？

Answer 1

Azure App Configuration 有助于管理应用程序设置并集中控制它们的访问。它建立在键值对的简单概念之上，此服务提供可管理性、可用性和易用性。

要解决您面临的问题，请检查您是否使用了正确的库，并检查 您是否有以下来自 Microsoft 的 NuGet 包来使用 Azure 应用程序配置资源和能力在项目中使用 Feature Flags.

Microsoft.Azure.AppConfiguration.AspNetCore Microsoft.Extensions.Configuration.AzureAppConfiguration Microsoft.FeatureManagement

因为您在 Startup.cs 和 ConfigureServices[= 中使用语句添加了 FeatureManagement 33=](...) 添加了使用它的能力。检查是否已修改 Program.cs 并将默认主机构建器的创建替换为使用 Azure 应用程序配置的创建器，如下所示。

public static IHostBuilder CreateHostBuilder(string[] args) => Host.CreateDefaultBuilder(args) .ConfigureWebHostDefaults(webBuilder => webBuilder.ConfigureAppConfiguration((hostingContext, config) => { var settings = config.Build(); config.AddAzureAppConfiguration(options => { options.Connect(Environment.GetEnvironmentVariable("ConnectionString")) .ConfigureRefresh(refresh => { refresh.Register("Settings:Sentinel", refreshAll: true).SetCacheExpiration(new TimeSpan(0, 1, 0)); }) .UseFeatureFlags(); }); }) .UseStartup<Startup>());

查看此 How to Add Azure App Configuration and Feature Flags into Blazor in .Net 5 文档以获取带有示例的详细分步说明。

有关更多信息，请查看以下文档：

Use dynamic configuration in an ASP.NET Core app

Adding Azure Feature Flags to ASP.NET Razor Pages Application

IApplicationBuilder 不包含 UseAzureAppConfiguration 的定义

IApplicationBuilder does not contain a definition for UseAzureAppConfiguration

c#

app-config

azure

azure-app-configuration