从入门到放弃，.net构建博客系统（二）：依赖注入

 1 public class AutofacConfig
 2     {
 3         /// <summary>
 4         /// 负责调用autofac框架实现业务逻辑层和数据仓储层程序集中的类型对象的创建
 5         /// 负责创建MVC控制器类的对象(调用控制器中的有参构造函数),接管DefaultControllerFactory的工作
 6         /// </summary>
 7         public static void Register()
 8         {
 9             Bootstrapper boot = new Bootstrapper();
10             boot.Start();
11 
12             //将MVC的控制器对象实例 交由autofac来创建
13             ControllerBuilder.Current.SetControllerFactory(new AutofacControllerFactory());
14         }
15     }

 1 public void Start()
 2         { 
 3             Type baseType = typeof(IDependency);
 4 
 5             // 获取所有相关类库的程序集
 6             Assembly[] assemblies = BuildManager.GetReferencedAssemblies().Cast<Assembly>().ToArray();
 7             
 8             containerBuilder.RegisterAssemblyTypes(assemblies).Where(type => baseType.IsAssignableFrom(type) && !type.IsAbstract)
 9                 .AsImplementedInterfaces().InstancePerDependency();//每次解析获得新实例
10 
11             Type singletonType = typeof(ISignleton);
12             containerBuilder.RegisterAssemblyTypes(assemblies).Where(type => singletonType.IsAssignableFrom(type) && !type.IsAbstract)
13                 .AsImplementedInterfaces().SingleInstance();// 保证对象生命周期基于单例
14 
15             containerBuilder.RegisterAssemblyModules(assemblies);//所有继承module中的类都会被注册
16 
17             var container = containerBuilder.Build();
18             ContainerManager.SetContainer(container);
19         }

1 protected override IController GetControllerInstance(RequestContext requestContext, Type controllerType)
2         {
3             if (controllerType == null)
4             {
5                 return base.GetControllerInstance(requestContext, controllerType);
6             }
7 
8             return ContainerManager.Resolve(controllerType) as IController;
9         }