如何让 ASP.NET Core DI 来让 Simple Injector 解决依赖？

Question

在一个 ASP.NET Core web api 项目中，我使用了 Simple Injector 和 JwtBearer 令牌。我已经定义了我的自定义令牌事件处理程序 class 并将其绑定到 ASP.NET 核心机制，如下所示：

private void ConfigureSecurity(IServiceCollection services)
{
    var encodedKey = Encoding.UTF8.GetBytes(_config[Konstants.SecretKey]);
    var key = new SymmetricSecurityKey(encodedKey);

    services.AddTransient<TokenAuthenticationEvents>();
    var authentication = services.AddAuthentication(o =>
    {
        o.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
        o.DefaultSignInScheme = JwtBearerDefaults.AuthenticationScheme;
        o.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
    });

    authentication.AddJwtBearer(JwtBearerDefaults.AuthenticationScheme, options =>
    {
        options.SaveToken = true;
        options.EventsType = typeof(TokenAuthenticationEvents);
        options.TokenValidationParameters = new TokenValidationParameters
        {
            ValidateAudience = true,
            ValidAudience = _config[Konstants.AudienceKey],
            ValidateIssuer = true,
            ValidIssuer = _config[Konstants.AuthorityKey],
            ValidateIssuerSigningKey = true,
            IssuerSigningKey = key,
            RequireExpirationTime = true,
            ValidateLifetime = true,
        };
    });
}

这是我的 class 令牌事件：

public class TokenAuthenticationEvents : JwtBearerEvents
{
    private readonly ILogger _log;
    private readonly IUserManager _users;


    public TokenAuthenticationEvents(ILogger log)
    {
        _log = log ?? throw new ArgumentNullException(nameof(log));
        _users = null;
    }

    public override Task TokenValidated(TokenValidatedContext context)
    {
        //Some Custom Logic that requires IUserManager 

        return base.TokenValidated(context);
    }
}

我正在使用 Simple Injector 作为我的 DI 容器

services.AddSimpleInjector(container, options =>
{
    options
        .AddAspNetCore()
        .AddControllerActivation()
        .AddViewComponentActivation()
        .AddPageModelActivation()
        .AddTagHelperActivation();
    });
    services.EnableSimpleInjectorCrossWiring(container);
    services.UseSimpleInjectorAspNetRequestScoping(container);

IUserManager 及其所有依赖项都已在 Simple Injector 中注册。如果我尝试在 TokenAuthenticationEvents 中传递 IUserManager，则会引发异常，即 ASP.NET Core 无法解析 IUserManager。所以我的问题是

我如何告诉 ASP.NET Core DI 从 Simple Injector 中解析 IUserManager？.

Answer 1

就像 Simple Injector cross wires ASP.NET Core components，你可以反过来做同样的事情，尽管你必须手动做。例如：

services.AddScoped<IUserManager>(c => container.GetInstance<IUserManager>());

Answer 2

这个答案没有解决您最初的问题，但我确实注意到您将旧的简单注入器 ASP.NET 核心配置模型与新的混合在一起。您目前拥有以下代码：

    services.AddSimpleInjector(container, options =>
    {
        options
            .AddAspNetCore()
                .AddControllerActivation()
                .AddViewComponentActivation()
                .AddPageModelActivation()
                .AddTagHelperActivation();
        });

        services.EnableSimpleInjectorCrossWiring(container);
        services.UseSimpleInjectorAspNetRequestScoping(container);

然而，对 EnableSimpleInjectorCrossWiring 和 UseSimpleInjectorAspNetRequestScoping 的调用是旧的 API，将在未来的版本中删除。当您调用 .AddAspNetCore() 时，这些功能会自动启用。所以你可以减少你的配置如下：

    services.AddSimpleInjector(container, options =>
    {
        options
            .AddAspNetCore()
                .AddControllerActivation()
                .AddViewComponentActivation()
                .AddPageModelActivation()
                .AddTagHelperActivation();
        });

如何让 ASP.NET Core DI 来让 Simple Injector 解决依赖？

How to have ASP.NET Core DI to get the dependency resolved by Simple Injector?

c#

simple-injector

asp.net-core-webapi

asp-net-core-spa-services