MVC Autofac依赖注入

通过Dll实现全部类的属性注入,该演示实例主要通过多层架构中单一的对象方式来演示，没有采取接口的方式, 新建AutoFacHelper类，如下代码:

 1 public class AutoFacHelper
 2     {
 3         private static IContainer _container;
 4 
 5         public static void InitAutofac()
 6         {
 7             var builder = new ContainerBuilder();
 8 
 9             //注册数据库基础操作和工作单元
10 
11            
12 
13             //注册app层
14 
15 
16             builder.RegisterAssemblyTypes(Assembly.Load("MCFrame.Application")).Where(x => x.Namespace == "MCFrame.Application").PropertiesAutowired(PropertyWiringOptions.PreserveSetValues);
17             // .AsImplementedInterfaces().InstancePerLifetimeScope();
18 
19 
20 
21 
22             //注册Repository
23             builder.RegisterAssemblyTypes(Assembly.Load("MCFrame.Repository")).Where(x => x.Namespace == "MCFrame.Repository");
24                 //.AsImplementedInterfaces().InstancePerLifetimeScope();
25            
26 
27             builder.RegisterControllers(Assembly.Load("MCFrame.Controllers")).PropertiesAutowired();
28             
29            
30             _container = builder.Build();
31            
32             DependencyResolver.SetResolver(new AutofacDependencyResolver(_container));
33 
34            
35 
36         }
37 
38         /// <summary>
39         /// 从容器中获取对象
40         /// </summary>
41         /// <typeparam name="T"></typeparam>
42         public static T GetFromFac<T>()
43         {
44             return _container.Resolve<T>();
45             //   return (T)DependencyResolver.Current.GetService(typeof(T));
46         }
47     }
在nuget包搜素autofac和autofac.mvc5包安装下载,将需要注入的dll都拷贝到web层bin目录下,

PropertiesAutowired表示通过属性的方式注入

Web层Controller代码如下

 1  public class HomeController : Controller
 2     {
 3 
 4       public  UsersApp app { get; set; }
 5      // public UsersRepository dal { get; set; }
 6        
 7         public string Index()
 8         {
 9 
10 
11 
12             UsersEntity model = new UsersEntity();
13             model.ID = Guid.NewGuid();
14             model.UserName = "test";
15             model.UserPwd = "1232";
16             model.AddTime = DateTime.Now;
17             app.AddInfo(model);
18             
19             return "";
20         }
21     }

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Application(BLL)层代码如下

 1 public class UsersApp
 2     {
 3 
 4       public UsersRepository dal { get; set; }
 5         public void AddInfo(UsersEntity entity)
 6         {
 7 
 8            // UsersRepository rp = new UsersRepository();
 9             dal.SaveEntity("", entity);
10         }
11     }

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