关于使用 autoFac 的注入方法

1、使用 NUGET 安装 Autofac

2、需要引用Autofac ASP.NET MVC 5 Integration  这个扩展包。

但有时候在NuGet中找不到 该包 需要使用“程序要控制器控制台”安装

输入  安装解决

 Install-Package Autofac.Mvc5 -Version 4.0.2

安装完成后引用里面就多了Autofac.dll和Autofac.Intergration.MVC,如果是在webApi里使用Autofac需要安装Autofac ASP.NET Web API2.2 Intergration 才可以。

install-package autofac.webapi2

　　

3、使用方法，以下方式引用 https://www.cnblogs.com/zjoch/p/6485170.html 博客

新建一个person实体类

public class Person
    {
        public int Id { get; set; }
        public string Name { get; set; }
        public int Age { get; set; }
        public string Address { get; set; }
    }

新建一个person仓储接口

public interface IPersonRepository
    {
        IEnumerable<Person> GetAll();
        Person Get(int id);
        Person Add(Person item);
        bool Update(Person item);
        bool Delete(int id);
    }

新建一个person仓储

public class PersonRepository : IPersonRepository
    {
        List<Person> person = new List<Person>();

        public PersonRepository()
        {
            Add(new Person { Id = 1, Name = "joye.net1", Age = 18, Address = "中国上海" });
            Add(new Person { Id = 2, Name = "joye.net2", Age = 18, Address = "中国上海" });
            Add(new Person { Id = 3, Name = "joye.net3", Age = 18, Address = "中国上海" });
        }
        public IEnumerable<Person> GetAll()
        {
            return person;
        }
        public Person Get(int id)
        {
            return person.Find(p => p.Id == id);
        }
        public Person Add(Person item)
        {
            if (item == null)
            {
                throw new ArgumentNullException("item");
            }
            person.Add(item);
            return item;
        }
        public bool Update(Person item)
        {
            if (item == null)
            {
                throw new ArgumentNullException("item");
            }

            int index = person.FindIndex(p => p.Id == item.Id);
            if (index == -1)
            {
                return false;
            }
            person.RemoveAt(index);
            person.Add(item);
            return true;
        }
        public bool Delete(int id)
        {
            person.RemoveAll(p => p.Id == id);
            return true;
        }
    }

Global属性注入

public class MvcApplication : System.Web.HttpApplication
    {
        private void SetupResolveRules(ContainerBuilder builder)
        {
            builder.RegisterType<PersonRepository>().As<IPersonRepository>();
        }
        protected void Application_Start()
        {
            var builder = new ContainerBuilder();
            SetupResolveRules(builder);
            builder.RegisterControllers(Assembly.GetExecutingAssembly()).PropertiesAutowired();
            var container = builder.Build();
            DependencyResolver.SetResolver(new AutofacDependencyResolver(container));

            AreaRegistration.RegisterAllAreas();
            FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
            RouteConfig.RegisterRoutes(RouteTable.Routes);
            BundleConfig.RegisterBundles(BundleTable.Bundles);
        }
    }

效果图