Autoafc 手动获取接口实例

demo:

using Autofac;
using Autofac.Integration.Mvc;
using Rongzi.RZR.Huoke.Repository;
using Rongzi.RZR.Huoke.Service;
using Rongzi.RZR.Huoke.Service.MQ;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Web;
using Rongzi.RZR.Huoke.Repository.Account;
using System.IO;
using Rongzi.RZR.Huoke.Infrastructure.Dependency;
using Rongzi.RZR.Huoke.Service.Services;
using Autofac.Core.Lifetime;

namespace Rongzi.RZR.Huoke
{
    public class ContainerConfig
    {
        public static IContainer BuildUnityContainer()
        {
            var builder = new ContainerBuilder();
            RegisterTypes(builder);

            return builder.Build();
        }

        private static void RegisterTypes(ContainerBuilder builder)
        {
            builder.RegisterControllers(Assembly.GetExecutingAssembly()).PropertiesAutowired();

            #region register service
            builder.RegisterType<AccountService>().PropertiesAutowired();
            builder.RegisterType<HomeService>().PropertiesAutowired();
            builder.RegisterType<SettingsService>().PropertiesAutowired();
            builder.RegisterType<ImageValidateService>().PropertiesAutowired();
            builder.RegisterType<SmsValidDateService>().PropertiesAutowired();
            builder.RegisterType<CommonService>().PropertiesAutowired();
            builder.RegisterType<LayoutHelper>().PropertiesAutowired();
            builder.RegisterType<AdminUtmSourceService>().PropertiesAutowired();
            #endregion

            #region register respository
            builder.RegisterType<OrganizationRespository>();
            builder.RegisterType<OrganizationUserRepository>();
            builder.RegisterType<RequirementBookRespository>();
            builder.RegisterType<OrganizationDayStatisticsRepository>();
            builder.RegisterType<CustomRespository>();
            builder.RegisterType<BaseDataRespository>();

            builder.RegisterType<AdminUtmSourceRepository>();
            #endregion            
        }


        public static T Resolve<T>(string key = "", ILifetimeScope scope = null) where T : class
        {
            if (scope == null)
            {
                //no scope specified
                scope = Scope();
            }
            if (string.IsNullOrEmpty(key))
            {
                return scope.Resolve<T>();
            }
            return scope.ResolveKeyed<T>(key);
        }


        public static ILifetimeScope Scope()
        {
            try
            {
                if (HttpContext.Current != null)
                    return AutofacDependencyResolver.Current.RequestLifetimeScope;

                //when such lifetime scope is returned, you should be sure that it'll be disposed once used (e.g. in schedule tasks)
                return BuildUnityContainer().BeginLifetimeScope(MatchingScopeLifetimeTags.RequestLifetimeScopeTag);
            }
            catch (Exception)
            {
                //we can get an exception here if RequestLifetimeScope is already disposed
                //for example, requested in or after "Application_EndRequest" handler
                //but note that usually it should never happen

                //when such lifetime scope is returned, you should be sure that it'll be disposed once used (e.g. in schedule tasks)
                return BuildUnityContainer().BeginLifetimeScope(MatchingScopeLifetimeTags.RequestLifetimeScopeTag);
            }
        }
    }
}

调用：

namespace Rongzi.RZR.Huoke.Filters
{
    public class ApiFormAuthFilterAttribute : System.Web.Mvc.ActionFilterAttribute
    {
        public AccountService AccountService { get; set; }

        public ApiFormAuthFilterAttribute()
        {
            this.AccountService = ContainerConfig.Resolve<AccountService>();
        }

        public override void OnActionExecuting(ActionExecutingContext actionContext)
        {
            if (actionContext == null || actionContext.HttpContext.Request == null || actionContext.HttpContext.Request.RawUrl == null) { return; }
            string OrgUserAccountInfo = actionContext.HttpContext.Request.QueryString["OrgUserAccountInfo"];
            if (!String.IsNullOrEmpty(OrgUserAccountInfo))
            {
                OrgUserAccountInfo info = new RSAEncryptHelper().DecryptString<OrgUserAccountInfo>(OrgUserAccountInfo);
                OrganizationUserModel oUser = AccountService.GetOrganizationUserByPhone(info.CellPhone);
                if (oUser == null || oUser.OrgId!=info.OrgId)
                {
                    actionContext.Result = GetAuthJsonResult("手机号或机构id错误"); return;
                }
                if (DateTime.Now.AddMinutes(-10) > info.timespan)
                {
                    actionContext.Result = GetAuthJsonResult("该链接已超时"); return;
                }
                FormsAuth.SignIn(oUser);
                base.OnActionExecuting(actionContext);
                return;
            }
            base.OnActionExecuting(actionContext);
        }


        public static JsonResult GetAuthJsonResult(string msg = "用户还未登录")
        {
            var errResponse = new ResponseContext<string>();
            errResponse.Head = new ResponseHead(-2, ErrCode.AuthError, msg);
            return new JsonResult
            {
                Data = errResponse,
                ContentEncoding = System.Text.Encoding.UTF8,
                JsonRequestBehavior = JsonRequestBehavior.AllowGet
            };
        }

        public override void OnActionExecuted(ActionExecutedContext actionExecutedContext)
        {
            base.OnActionExecuted(actionExecutedContext);
        }
    }
}

var obj = container.Resolve<Interface>(); //只有有特殊需求的时候可以通过这样的形式来拿。一般情况下没有必要这样来拿，因为AutoFac会自动工作

（即：会自动去类的带参数的构造函数中找与容器中key一致的参数类型，并将对象注入到类中，其实就是将对象赋值给构造函数的参数）  

http://blog.csdn.net/fanbin168/article/details/51293218

https://www.cnblogs.com/niuww/p/5649632.html