autofac 用法总结

autofac官网:

http://autofaccn.readthedocs.io/en/latest/getting-started/index.html

autofac作为一个热门ioc框架,还是有了解一下的必要的。这里用两个小案例来简单说说autofac在.net framework控制台应用程序和asp.net mvc5 项目中的使用。

先从控制台应用程序开始。

首先nuget安装autofac,新建IDemo接口

namespace AutuFacDemo
{
    interface IDemo
    {
        string Hello();
    }
}

新建Demo类实现IDemo接口:

namespace AutuFacDemo
{
    public class Demo :IDemo
    {
        public string Hello()
        {
            return "hello";
        }
    }
}

Program.cs:

using Autofac;
using System;

namespace AutuFacDemo
{
    class Program
    {
        private static IContainer Container { set; get; }

        static void Main(string[] args)
        {
            var builder = new ContainerBuilder();
            builder.RegisterType<Demo>().As<IDemo>();
            Container = builder.Build();

            using (var scope = Container.BeginLifetimeScope())
            {
                var demo = scope.Resolve<IDemo>();
                Console.WriteLine(demo.Hello());
                Console.ReadKey();
            }
        }
    }
}

这样就完成了一个最简单的控制台Demo。

 

现在开始使用mvc5案例。

nuget安装Autofac.Mvc5

同一解决方案内新建IBLL和BLL类库,IBLL存放IDemo.cs:

namespace IBLL
{
    public interface IDemo
    {
        string Hello();
    }
}

BLL存放Demo.cs

using IBLL;

namespace BLL
{
    public class Demo :IDemo
    {
        public string Hello()
        {
            return "hello";
        }
    }
}

Global.asax.cs配置autofac:

using Autofac;
using Autofac.Integration.Mvc;
using BLL;
using IBLL;
using System.Web.Http;
using System.Web.Mvc;
using System.Web.Optimization;
using System.Web.Routing;

namespace WebDemo
{
    public class WebApiApplication : System.Web.HttpApplication
    {
        protected void Application_Start()
        {
            AreaRegistration.RegisterAllAreas();
            GlobalConfiguration.Configure(WebApiConfig.Register);
            FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
            RouteConfig.RegisterRoutes(RouteTable.Routes);
            BundleConfig.RegisterBundles(BundleTable.Bundles);


            var builder = new ContainerBuilder();
            builder.RegisterControllers(typeof(WebApiApplication).Assembly);

            builder.RegisterType<Demo>().As<IDemo>();

            var container = builder.Build();
            DependencyResolver.SetResolver(new AutofacDependencyResolver(container));
        }
    }
}

控制器配置Demo方法:

using IBLL;
using System.Web.Mvc;

namespace WebDemo.Controllers
{
    public class HomeController : Controller
    {

        private IDemo _demo;

        public HomeController(IDemo demo)
        {
            this._demo = demo;
        }

        public ActionResult Index()
        {
            ViewBag.Title = "Home Page";

            return View();
        }

        public ActionResult Demo()
        {
            string hello = _demo.Hello();
            return Content(hello);
        }
    }
}

运行后访问Demo方法,即可看到效果。

 

posted on 2018-03-21 08:06  axel10  阅读(645)  评论(1编辑  收藏  举报