.Net Core 2.1不读取用户秘密

Question

我在mac上运行.net核心2.1应用程序,我试图访问我的连接字符串,应该被我的用户机密覆盖..csproj文件包含一个guid

<UserSecretsId>{{Secret Guid}}</UserSecretsId>

添加用户密钥

dotnet user-secrets set "ConnectionStrings:DefaultConnection" "Secret Connection String"

我创建了完全从我的appsettings.json文件中读取的配置,但它没有用我的用户机密中的值替换默认值.

// this is done so I build my configurations in a class library
var assembly = AppDomain.CurrentDomain.GetAssemblies()
    .Single(o => o.EntryPoint != null);

var configurationBuilder = new ConfigurationBuilder()
    .AddEnvironmentVariables()
    // .AddUserSecrets<Program>() -> This does not work either
    .AddUserSecrets(assembly, optional: false);

configurationBuilder.SetBasePath(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location));
configurationBuilder.AddJsonFile("appsettings.json", optional: true, reloadOnChange: true);
var configuration = configurationBuilder.Build();

Console.WriteLine(configuration["ConnectionStrings:DefaultConnection"]);

正如我之前所说的尝试访问值,它不会用用户机密值替换值.请让我知道我错过了什么.

Answer 1

向您添加配置源的顺序ConfigurationBuilder非常重要 - 稍后添加的顺序将覆盖首先添加的顺序.在您的示例中,您AddUserSecrets之前正在调用AddJsonFile,这会导致您的JSON文件值覆盖用户机密中定义的值.

为了完整起见,这是一个固定版本:

var configurationBuilder = new ConfigurationBuilder()
    .AddEnvironmentVariables();

configurationBuilder.SetBasePath(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location));
configurationBuilder.AddJsonFile("appsettings.json", optional: true, reloadOnChange: true);

// configurationBuilder.AddUserSecrets<Program>(); -> This does not work either
configurationBuilder.AddUserSecrets(assembly, optional: false);

鉴于此,您可能还希望将AddEnvironmentVariables调用移至稍后在配置设置中运行.