Ioc Autofac心得

对于这个容器注入，个人也不是很熟悉，很多还不懂，只会基本的操作，几天把它记录下来，相信不久的自己会更上一层楼

下面记录下应用的流程

步骤：

1.添加应用

2.重写工厂（这里讲的是常用的构造方法注入方式）

 1 public class CreateAutofacFactory : DefaultControllerFactory

 2     {

 3         public override IController CreateController(RequestContext requestContext, string controllerName)

 4         {

 5             //获取容器

 6             IContainer ic = CreateControllers.CreateController().Icontainer;

 7             //获取控制器类型

 8             Type t = this.GetControllerType(requestContext, controllerName);

 9             //从容器中解析出对象

10             return ic.Resolve(t) as IController;

11         }

12     }

View Code

 1 public class CreateControllers

 2     {

 3         private CreateControllers() { }

 4         private static CreateControllers createController;

 5         public static CreateControllers CreateController()

 6         {

 7             if (createController == null)

 8                 createController = new CreateControllers();

 9             return createController;

10         }

11         private IContainer iContainer { get; set; }

12         public IContainer Icontainer

13         {

14             get 

15             {

16                 if (iContainer == null)

17                 {

18                     ContainerBuilder cb = new ContainerBuilder();

19                     //用代码注册类型

20                     //cb.RegisterType<StudentDao>().As<IStudentDao>();

21                     //cb.RegisterType<StudentManager>().As<IStudentManager>();

22                     //cb.RegisterType<HomeController>();

23 

24                     //从配置文件注册类型

25                     cb.RegisterModule(new ConfigurationSettingsReader("autofac"));

26                     iContainer = cb.Build();//创建容器

27                 }

28                 return iContainer;

29             }

30         }

31     }

View Code

3.启动（更换）工厂

 1 public class MvcApplication : System.Web.HttpApplication

 2     {

 3         protected void Application_Start()

 4         {

 5             AreaRegistration.RegisterAllAreas();

 6 

 7             WebApiConfig.Register(GlobalConfiguration.Configuration);

 8             FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);

 9             RouteConfig.RegisterRoutes(RouteTable.Routes);

10             BundleConfig.RegisterBundles(BundleTable.Bundles);

11 

12             //换ControllerFactory(服务器一启动就更换工厂)

13             ControllerBuilder.Current.SetControllerFactory(new CreateAutofacFactory());

14         }

15     }

View Code

4.添加配置文件

 1 <configSections>

 2     <!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->

 3     <section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=5.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />

 4   

 5     <!--在配置文件中添加配置节点 name是配置节点的标签名 

 6         type是读取配置节点内容的类 格式：命名空间名.类名，程序集名-->

 7     <section name="autofac" type="Autofac.Configuration.SectionHandler, Autofac.Configuration"/>

 8   

 9   </configSections>

10 

11 <autofac>

12     <components>

13         <component type="Winning.Tjgi.Backstage3G.UI.Controllers.HomeController,Winning.Tjgi.Backstage3G.UI"

14                />

15 <component

16              type="test.Dal.UserDao,test.Dal"

17              service="test.IDal.IUserDao,test.IDal"/>

18 <component

19               type="test.Bll.UserManager,test.Bll"

20               service="test.IBll.IUserManager,test.IBll" />

21 </components>

22   </autofac>

View Code

5.构造函数

1         IUserManager uMan = null;

2         public HomeController(IUserManager uMan)

3         {

4             this.uMan = uMan;

5         }    

View Code

五步走起，如果过程出错的话基本上都是配置文件配置出错，还有就是经常忘记更新dll类库，在这里要建议下把类库的输出路径改成到UI项目里，经常动手才会记忆深刻，一直在努力中，希望能走出自己的道路，虽然脆弱，却不退缩。