AutoFac+MVC+WebApi源码----我踩过的坑

发现网上关于AutoFac的Demo源码比较少，综合MVC和WepApi的更少。所以贴出源码

WebApi项目（MVC4不需要引用，历史遗留问题，人懒没删）

建项目

新建类库IAutoFacDal（接口），AutoFacDal，IAutoFacLogic（接口），AutoFacLogic，AutoFacDto（参数），AutoFacEntity（数据库实体）

新建WebApi

AutoFacEntity

User源码

 using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;

 namespace AutoFacEntity.DBModel
 {
     public class User
     {
         /// <summary>
         /// 姓名
         /// </summary>
         public string Name { get; set; }
         /// <summary>
         /// 年龄
         /// </summary>
         public int Age { get; set; }
         /// <summary>
         /// 性别
         /// </summary>
         public string Sex { get; set; }
     }
 }

User

AutoFacDto

UserAddInputDto源码

 using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;

 namespace AutoFacDto.Input
 {
     public class UserAddInputDto
     {
         /// <summary>
         /// 姓名
         /// </summary>
         public string Name { get; set; }
         /// <summary>
         /// 年龄
         /// </summary>
         public int Age { get; set; }
         /// <summary>
         /// 性别
         /// </summary>
         public string Sex { get; set; }
     }
 }

UserAddInputDto

UserModel源码

 using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;

 namespace AutoFacDto.Model
 {
     public class UserModel
     {
         /// <summary>
         /// 姓名
         /// </summary>
         public string Name { get; set; }
         /// <summary>
         /// 年龄
         /// </summary>
         public int Age { get; set; }
         /// <summary>
         /// 性别
         /// </summary>
         public string Sex { get; set; }
     }
 }

UserModel

UserAddOutputDto源码

 using AutoFacDto.Model;
 using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;

 namespace AutoFacDto.Output
 {
     public class UserAddOutputDto
     {
         public UserModel Info { get; set; }
     }
 }

UserAddOutputDto

IAutoFacDal

IUserDal

IUserDal源码

   using AutoFacDto.Input;
   using AutoFacDto.Model;
   using AutoFacDto.Output;
   using System;
   using System.Collections.Generic;
   using System.Linq;
   using System.Text;
   using System.Threading.Tasks;

  namespace IAutoFacDal.User
  {
      public interface IUserDal
      {
          UserAddOutputDto UserAdd(UserAddInputDto input);
      }
  }

AutoFacDal

UserDal源码（另一个类无视）

 using IAutoFacDal.User;
 using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using AutoFacDto.Input;
 using AutoFacDto.Output;
 using AutoFacDto.Model;

 namespace AutoFacDal.User
 {
     public class UserDal : IUserDal
     {
         public UserAddOutputDto UserAdd(UserAddInputDto input)
         {
             UserAddOutputDto output = new UserAddOutputDto { Info=new UserModel()};
             output.Info.Age = input.Age;
             output.Info.Name = input.Name+"--默认调用";
             output.Info.Sex = input.Sex;
             return output;
         }
     }
 }

UserDal

IAutoFacLogic

IUserLogic源码

using AutoFacDto.Input;
using AutoFacDto.Output;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace IAutoFacLogic.User
{
    public interface IUserLogic
    {
        UserAddOutputDto UserAdd(UserAddInputDto input);
    }
}

IUserLogic

AutoFacLogic

UserLogic源码（UserInfoLogic是我测试替换数据源的，可以无视）

 using IAutoFacLogic.User;
 using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using AutoFacDto.Input;
 using AutoFacDto.Output;
 using IAutoFacDal.User;

 namespace AutoFacLogic.User
 {
     public class UserLogic : IUserLogic
     {
         public IUserDal iServerUerDal;

         public UserLogic(IUserDal param)
         {
             iServerUerDal = param;
         }
         public UserAddOutputDto UserAdd(UserAddInputDto input)
         {
             return iServerUerDal.UserAdd(input);
         }
     }
 }

AutoFacWebApi

WebApi项目默认是有代码并且能实现的

我只给出关键代码，如果需要Demo源码联系QQ85528445备注：博客园Autofac（Home里面有报错的话，把报错的删掉就能运行了）

using Autofac;
using Autofac.Integration.Mvc;
using Autofac.Integration.WebApi;
using AutoFacDal.User;
using AutoFacLogic.User;
using IAutoFacDal.User;
using IAutoFacLogic.User;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Web;
using System.Web.Http;
using System.Web.Mvc;
using System.Web.Optimization;
using System.Web.Routing;

namespace AutoFacWebApi
{
    public class WebApiApplication : System.Web.HttpApplication
    {
        protected void Application_Start()
        {
            AreaRegistration.RegisterAllAreas();
            GlobalConfiguration.Configure(WebApiConfig.Register);

            //注册全局过滤器
            FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
            RouteConfig.RegisterRoutes(RouteTable.Routes);
            BundleConfig.RegisterBundles(BundleTable.Bundles);
            AutoFacStart();
        }
        #region 实现依赖注入
        /// <summary>
        /// 使用AutoFac实现依赖注入，
        /// </summary>
        public void AutoFacStart()
        {
            var builder = new ContainerBuilder();
            SetupResolveRules(builder);  //注入

            builder.RegisterControllers(Assembly.GetExecutingAssembly());  //注入Controller

            builder.RegisterApiControllers(Assembly.GetExecutingAssembly());//注入APi
            builder.RegisterWebApiFilterProvider(GlobalConfiguration.Configuration);//注入APi
            builder.RegisterWebApiModelBinderProvider();//注入APi

            var container = builder.Build();
            DependencyResolver.SetResolver(new AutofacDependencyResolver(container));//注入Controller

            var webApiResolver = new AutofacWebApiDependencyResolver(container);    //注入APi
            GlobalConfiguration.Configuration.DependencyResolver = webApiResolver;  //注入APi
        }
        /// <summary>
        /// 注入规则
        /// </summary>
        /// <param name="builder"></param>
        protected void SetupResolveRules(ContainerBuilder builder)
        {
            //UI项目只用引用service和repository的接口，不用引用实现的dll。
            //如需加载实现的程序集，将dll拷贝到bin目录下即可，不用引用dll
            var IServicesBLL = Assembly.Load("IAutoFacLogic");
            var ServicesBLL = Assembly.Load("AutoFacLogic");

            var IServicesDAL = Assembly.Load("IAutoFacDal");
            var ServicesDAL = Assembly.Load("AutoFacDal");

            //实现服务接口和服务实现的依赖 业务逻辑层
            builder.RegisterAssemblyTypes(IServicesBLL, ServicesBLL).AsImplementedInterfaces();

            //实现服务接口和服务实现的依赖 数据层
            builder.RegisterAssemblyTypes(IServicesDAL, ServicesDAL).AsImplementedInterfaces();
            //特定条件的过滤注册-只注册结尾是User的
            //builder.RegisterAssemblyTypes(IServices, Services).Where(t => t.Name.EndsWith("User")).AsImplementedInterfaces();
            //使用新的覆盖旧的注册DLL-使用UserNew代替UserOld
            builder.RegisterType<UserLogic>().As<IUserLogic>();
            builder.RegisterType<UserInfoLogic>().As<IUserInfoLogic>();
            builder.RegisterType<UserDal>().As<IUserDal>();
        }
        #endregion
    }
}

Global

using AutoFacDto.Input;
using IAutoFacLogic.User;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;

namespace AutoFacWebApi.Controllers
{
    public class HomeController : Controller
    {
        private IUserLogic iServerUserLogic;
        private IUserInfoLogic iServerUserInfoLogic;

        /// <summary>
        /// 配置构造函数注入
        /// </summary>
        public HomeController(IUserLogic param,IUserInfoLogic param2)
        {
            iServerUserLogic = param;
            iServerUserInfoLogic = param2;
        }
        public ActionResult Index()
        {
            ViewBag.Title = "Home Page";

            UserAddInputDto input = new UserAddInputDto();
            input.Name = "Home Page";
            //动态调用Bll项目中的类方法
            //ViewBag.Title = iServerUserLogic.UserAdd(input).Info.Name;
            ViewBag.Title = iServerUserInfoLogic.UserAdd(input).Info.Name;
            return View();
        }
    }
}

HomeController