依赖注入的自动化修炼之道 - 告别手动注册的苦修时代

services.AddTransient<IUserRepository, UserRepository>();
services.AddTransient<IUserService, UserService>();
services.AddScoped<IOrderService, OrderService>();

Install-Package Scrutor

dotnet add package Scrutor

services.Scan(scan => scan
.FromAssemblyOf<Startup>()
.AddClasses(classes => classes.Where(t => t.Name.EndsWith("Repository")))
.AsImplementedInterfaces()
.WithTransientLifetime());

// FromAssemblyOf<Startup>：从Startup所在程序集搜寻
// AddClasses：筛选符合条件的类
// AsImplementedInterfaces：注册为实现的接口
// WithTransientLifetime：设置生命周期

services.Scan(scan => scan
.FromAssemblyOf<Startup>()
.AddClasses()
.AsMatchingInterface()
.WithTransientLifetime());

services.Scan(scan=> scan
.FromAssemblyOf<MyService>()
.AddClasses()
.AsSelf()
.WithSingletonLifetime());

.UsingRegistrationStrategy(RegistrationStrategy.Skip)

Services/
  User/
    IUserService.cs
    UserService.cs
  Order/
    IOrderService.cs
    OrderService.cs

services.Scan(scan => scan
.FromAssemblyOf<Startup>()
.AddClasses(classes => classes.Where(t => t.Name.EndsWith("Service")))
.AsImplementedInterfaces()
.WithScopedLifetime()
.AddClasses(classes => classes.Where(t => t.Name.EndsWith("Repository")))
.AsImplementedInterfaces()
.WithTransientLifetime());

services.Decorate<IUserService, UserServiceDecorator>();