ASP.NET Core 奇淫技巧之伪属性注入的实现

public interface IUserAppService:IAppService { void Create(); } public class UserAppService : AppService,IUserAppService { public void Create() { Logger.LogInformation("来自 Application Service 的日记"); } }

界说非凡的注册处事的要领，以便实现 Resolve 为 Logger 赋值

public static class ServiceExtensions { public static IServiceCollection AddApplicationService<TService, TImpl>(this IServiceCollection services) where TService:IAppService where TImpl:AppService { services.AddApplicationService(typeof(TService), typeof(TImpl)); return services; } // 可以反射措施集挪用此要领实现批量自动注册应用处事 public static IServiceCollection AddApplicationService(this IServiceCollection services, Type serviceType,Type implType) { services.AddTransient(serviceType, sp => { //获取处究竟现的实例 var implInstance = ActivatorUtilities.CreateInstance(sp, implType); ; if (implInstance is AppService obj) { //为 Logger 赋值 obj.Logger= sp.GetRequiredService<ILoggerFactory>().CreateLogger(implType); } return implInstance; }); return services; }

注册测试处事

Controller 注入测试处事

运行测试

七.竣事

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