ASP.NET MVC IOC依赖注入之Autofac系列（二）- W…

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Web;
using System.Web.Security;
using System.Web.SessionState;

using Autofac;
using Autofac.Integration.Web;
using TianYa.DotNetShare.Model;

namespace TianYa.DotNetShare.WebDemo
{
    public class Global : System.Web.HttpApplication, IContainerProviderAccessor
    {
        /// <summary>
        /// 依赖注入ContainerProvider
        /// </summary>
        static IContainerProvider _containerProvider;

        /// <summary>
        /// 实现IContainerProviderAccessor接口
        /// </summary>
        public IContainerProvider ContainerProvider
        {
            get
            {
                return _containerProvider;
            }
        }

        protected void Application_Start(object sender, EventArgs e)
        {
            AutofacRegister(); //Autofac依赖注入
        }

        /// <summary>
        /// Autofac依赖注入
        /// </summary>
        private void AutofacRegister()
        {
            var builder = new ContainerBuilder();

            //一次性注册所有实现了IDependency接口的类
            Type baseType = typeof(IDependency);
            Assembly[] assemblies = 
                Directory.GetFiles(AppDomain.CurrentDomain.RelativeSearchPath, "*.dll").Select(Assembly.LoadFrom).ToArray();
            builder.RegisterAssemblyTypes(assemblies)
                   .Where(type => baseType.IsAssignableFrom(type) && !type.IsAbstract)
                   .AsSelf().AsImplementedInterfaces()
                   .PropertiesAutowired().InstancePerLifetimeScope();

            //设置依赖解析器
            _containerProvider = new ContainerProvider(builder.Build());
        }
    }
}

<configuration>
  
  <!--Autofac依赖注入-->
  <system.webServer>
    <modules>
      <!-- This module handles disposal of the request lifetime scope. -->
      <add name="ContainerDisposal" type="Autofac.Integration.Web.ContainerDisposalModule, Autofac.Integration.Web" preCondition="managedHandler" />
      <!-- This module injects properties on web forms. You could also use the UnsetPropertyInjectionModule or a custom module. -->
      <add name="PropertyInjection" type="Autofac.Integration.Web.Forms.PropertyInjectionModule, Autofac.Integration.Web" preCondition="managedHandler" />
    </modules>
  </system.webServer>
</configuration>

using System;

using TianYa.DotNetShare.Service;
using TianYa.DotNetShare.Repository;
using TianYa.DotNetShare.Repository.Impl;

namespace TianYa.DotNetShare.WebDemo
{
    public partial class Index : System.Web.UI.Page
    {
        /// <summary>
        /// 定义仓储层学生实现类对象
        /// </summary>
        public StudentRepository StuRepositoryImpl { get; set; }

        /// <summary>
        /// 定义仓储层学生抽象类对象
        /// </summary>
        public IStudentRepository StuRepository { get; set; }

        /// <summary>
        /// 通过属性注入，访问修饰符必须为public，否则会注入失败
        /// </summary>
        public IStudentService StuService { get; set; }

        /// <summary>
        /// 页面加载
        /// </summary>
        /// <param name="sender">引发事件的源</param>
        /// <param name="e">处理事件所需的参数</param>
        protected void Page_Load(object sender, EventArgs e)
        {
            var stu1 = StuRepository.GetStuInfo("10000");
            var stu2 = StuService.GetStuInfo("10001");
            var stu3 = StuRepositoryImpl.GetStuInfo("10002");
            string msg = $"学号：10000，姓名：{stu1.Name}，性别：{stu1.Sex}，年龄：{stu1.Age}<br />";
            msg += $"学号：10001，姓名：{stu2.Name}，性别：{stu2.Sex}，年龄：{stu2.Age}<br />";
            msg += $"学号：10002，姓名：{stu3.Name}，性别：{stu3.Sex}，年龄：{stu3.Age}";

            Response.Write(msg);
        }
    }
}

链接：https://pan.baidu.com/s/1jUbf1pk2-bSybf9OfUh8Tw 
提取码：24ki