c# - Azure 应用服务应用程序设置值未更新

Question

我正在尝试在测试 API 上加载 appsettings.test.json 文件，但在读取环境变量时遇到问题。在本地工作正常，但当我将其推送到 Azure 应用服务时，我不断指向我的 dev appsettings.json 文件。

我将在下面附上我的设置以及我用来验证此问题的 API 调用结果。除了 ASPNETCORE_ENVIRONMENT 之外，所有其他自定义值均有效。

Azure 应用服务应用程序设置

用于测试的应用服务端点

[HttpGet("env")]
public IActionResult GetEnvVariable()
{
    var test = Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT");
    var test1 = Environment.GetEnvironmentVariable("DOTNET_ENVIRONMENT");
    return Ok($"ASPNETCORE: {test}\nDOTNET: {test1}");
}

应用服务端点响应

程序.cs

public class Program
{
    public static void Main(string[] args)
    {
        CreateWebHostBuilder(args).Build().Run();
    }

    public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
        WebHost.CreateDefaultBuilder(args).UseStartup<Startup>();
}

程序.cs

public class Startup
    {
        public Startup(IConfiguration configuration, IWebHostEnvironment env)
        {
            var builder = new ConfigurationBuilder()
                .SetBasePath(env.ContentRootPath)
                .AddJsonFile("appsettings.json", optional: false, reloadOnChange: true)
                .AddJsonFile($"appsettings.{env.EnvironmentName}.json", optional: true)
                .AddEnvironmentVariables();

            Configuration = builder.Build();
        }

        public IConfiguration Configuration { get; }

        public void ConfigureServices(IServiceCollection services)
        {
            //register bugsnag, swagger,  jwt auth, auto mapper, service classes, db context, controllers
        }

        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            app.UseSwagger();

            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();

                app.UseSwaggerUI(options =>
                {
                    options.SwaggerEndpoint("/swagger/v1/swagger.json", "Test API V1");
                });
            }

            app.UseAuthentication();

            app.UseHttpsRedirection();

            app.UseRouting();

            app.UseAuthorization();

            app.UseMiddleware<GlobalErrorHandlingMiddleware>();

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllers();
            });
        }
    }

CSPROJ

<Project Sdk="Microsoft.NET.Sdk.Web">

  <PropertyGroup>
    <TargetFramework>net6.0</TargetFramework>
    <AssemblyName>$(MSBuildProjectName)</AssemblyName>
    <RootNamespace>$(MSBuildProjectName.Replace(" ", "_"))</RootNamespace>
    <Configurations>Release;Debug;Test</Configurations>
    <Nullable>enable</Nullable>
    <ImplicitUsings>enable</ImplicitUsings>
  </PropertyGroup>

  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">
    <Optimize>True</Optimize>
    <DefineConstants>$(DefineConstants)</DefineConstants>
  </PropertyGroup>

  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Test|AnyCPU' ">
    <Optimize>True</Optimize>
    <DefineConstants>$(DefineConstants)</DefineConstants>
    <IntermediateOutputPath>obj\Release\net6.0</IntermediateOutputPath>
  </PropertyGroup>

  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
    <DefineConstants>$(DefineConstants)</DefineConstants>
    <Optimize>True</Optimize>
  </PropertyGroup>
  <ItemGroup>
    <Content Remove="appsettings.Development.json" />
    <Content Remove="appsettings.json" />
    <Content Remove="appsettings.Production.json" />
    <Content Remove="appsettings.Test.json" />
  </ItemGroup>

  <ItemGroup>
    <None Include="appsettings.Development.json">
      <CopyToOutputDirectory>Never</CopyToOutputDirectory>
    </None>
    <None Include="appsettings.json">
      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
    </None>
    <None Include="appsettings.Production.json">
      <CopyToOutputDirectory>Never</CopyToOutputDirectory>
    </None>
    <None Include="appsettings.Test.json">
      <CopyToOutputDirectory>Never</CopyToOutputDirectory>
    </None>
  </ItemGroup>

  <ItemGroup>
    <PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="6.0.1" />
    <PackageReference Include="Microsoft.AspNetCore.Mvc.NewtonsoftJson" Version="6.0.1" />
    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="6.0.1">
      <PrivateAssets>all</PrivateAssets>
      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
    </PackageReference>
    <PackageReference Include="Serilog.AspNetCore" Version="6.0.1" />
    <PackageReference Include="Swashbuckle.AspNetCore" Version="5.0.0" />
  </ItemGroup>

  <ItemGroup>
    <ProjectReference Include="..\Test.Api.Business\Test.Api.Business.csproj" />
  </ItemGroup>

  <ItemGroup>
    <Folder Include="wwwroot\" />
  </ItemGroup>
</Project>

附加信息此应用服务正在使用 F1 免费套餐，这可能是原因吗？

Answer 1

仅供引用，如果有人遇到此问题。我的项目最初是一个 .NET CORE 3.1 项目，即使升级到 6 后，显然仍然存在挥之不去的文件，这些文件不会仅仅因为我针对的是较新的框架而被清除。

罪魁祸首是我的 web.config 文件，它覆盖了我的 ASPNETCORE_ENVIRONMENT 环境变量。

<environmentVariables>
<environmentVariable name="ASPNETCORE_ENVIRONMENT" value="Development" />
<environmentVariable name="ASPNETCORE_HTTPS_PORT" value="44364" />
<environmentVariable name="COMPLUS_ForceENC" value="1" />
</environmentVariables>