SimpleInjector是一个基于.NET3.5的、简单易用的IoC/DI库。

SimpleInjector完全支持基于代码配置，对不太熟悉IoC/DI框架的开发人员是一种不错的选择。

使用

public class UserController : Controller  {      private readonly IUserRepository repository;      private readonly ILogger logger;        // Use constructor injection for the dependencies      public UserService(IUserRepository rep, ILogger logger)      {          this.repository = rep;          this.logger = logger;      }        // implement UserController methods here.  }

配置

protected void Application_Start(object sender, EventArgs e)   {      // 1. Create a new Simple Injector container      var container = new Container();        // 2. Configure the container (register)      container.Register();        container.RegisterSingle(() => new CompositeLogger(          container.GetInstance(),          container.GetInstance()      ));        // 3. Optionally verify the container's configuration.      container.Verify();        // 4. Register the container as MVC3 IDependencyResolver.      DependencyResolver.SetResolver(new SimpleInjectorDependencyResolver(container));  }

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