Spring.Net控制反转IoC入门使用

public interface IUserInfo
  {
    string ShowMeg();
  }

public class UserInfo : IUserInfo
  {
    public string UserName { get; set; }
    public Order OrderBy { get; set; }
    public string ShowMeg()
    {
      return "姓名：" + UserName + "订单号：" + OrderBy.OrderNo;
    }
  }

public class Order
  {
    public string OrderNo { get; set; }
  }

<sectionGroup name="spring">
   <!--解析spring块的对象-->
   <section name="context" type="Spring.Context.Support.ContextHandler,Spring.Core"/>
   <!--配置解析spring存放对象的容器集合-->
   <section name="objects" type="Spring.Context.Support.DefaultSectionHandler,Spring.Core"/>
  </sectionGroup>
  
 </configSections>
<!--****************** Spring 配置开始 ******************-->
 <spring>
  <context>
   <!--容器配置，配置当前容器对象放在上面位置：当前是在现在的配置文件中-->
   <resource uri="config://spring/objects" /><!--当前-->
  </context>
  <objects xmlns="http://www.springframework.net">
   <!--这里存放容器所有节点-->
   <description>An example that demonstrates simple Ioc features</description>
   <!-- name 必须唯一 可以随意命名，一般为类型名称，type=类的全部名称,所在程序集，目的是为了让容器轻松的反射创建对象-->
   <object name="UserInfo" type="SpringDemo.Models.UserInfo,SpringDemo">
    <property name="UserName" value="老王" />
    <!--ref 指向下面的属相注入-->
    <property name="OrderBy" ref="Order" />
   </object>
   <object name="Order" type="SpringDemo.Models.Order,SpringDemo">
    <property name="OrderNo" value="20170808" />
   </object>
  </objects>
 </spring>
 <!--****************** Spring 配置结束 ******************-->

public ActionResult Index()
    {
      IApplicationContext ctx = ContextRegistry.GetContext();
      IUserInfo lister = (IUserInfo)ctx.GetObject("UserInfo");
      ViewBag.msg = lister.ShowMeg();
      return View();
    }

public class NewUserInfo : IUserInfo
  {
    public NewUserInfo(string name, Order order)
    {
      this.UserName = name;
      this.OrderBy = order;
    }

    public string UserName { get; set; }
    public Order OrderBy { get; set; }

    public string ShowMeg()
    {
      return "姓名：" + UserName + "订单号：" + OrderBy.OrderNo;
    }
  }

<?xml version="1.0" encoding="utf-8" ?>
<objects xmlns="http://www.springframework.net">
 <!--这里存放容器所有节点-->
 <description>An example that demonstrates simple Ioc features</description>
 
 <!--构造函数注入-->
 <object name="NewUserInfo" type="SpringDemo.Models.NewUserInfo,SpringDemo">
  <constructor-arg index="0" value="张学友"/>
  <constructor-arg index="1" ref="Order"/>
 </object>
 <!--复杂依赖注入-->
 <object name="Order" type="SpringDemo.Models.Order,SpringDemo">
  <property name="OrderNO" value="20170909"/>
 </object> 
 
</objects>

<resource uri="~/Config/objects.xml" /><!--指定文档-->

public ActionResult NewUserInfo()
    {
      IApplicationContext ctx = ContextRegistry.GetContext();
      IUserInfo lister = (IUserInfo)ctx.GetObject("NewUserInfo");
      ViewBag.msg = lister.ShowMeg();
      return View();
    }