Share an example of an IOC introductory tutorial

Spring.net includes control inversion (IOC) and aspect-oriented (AOP), this article mainly introduces the IoC aspects of the introduction.

First, build an MVC project name called Springdemo, then download spring with NuGet (I'm using spring.net NHibernate 4 support)

Second, class design, under the Models folder to establish a class, the main Iuserinfo,userinfo,order three class code as follows:

Public interface Iuserinfo    {string Showmeg ();    }

public class Userinfo:iuserinfo    {public string UserName {get; set;} Public Order by {get; set;} public string Showmeg ()        {return name: "+ UserName +" Order Number: "+ Orderby.orderno;        }    }

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

Third, enter the key step: Modify the configuration file. Modify the following directly in the Web. config:

<sectiongroup name= "Spring" > <!--parsing Spring block objects--<section name= "context" type= " Spring.context.support.contexthandler,spring.core "/> <!--configuration parsing the container collection of Spring storage objects--<section name=" Objects "type=" Spring.context.support.defaultsectionhandler,spring.core "/></sectiongroup> </ configsections><!--****************** Spring configuration start ******************--> <spring><context> < !--container configuration, configure the current container object to be placed in the top position: currently in the current configuration file--<resource uri= "config://spring/objects"/><!--current--></ Context><objects xmlns= "Http://www.springframework.net" > <!--here to store all the container nodes--<description>an Example that demonstrates the simple Ioc features</description> <!--name must be uniquely named, typically the type name, the full name of the Type= class, the assembly, The goal is to let the container easily reflect objects--<object name= "UserInfo" type= "Springdemo.models.userinfo,springdemo" ><property Name= "UserName" value= "Lao Wang"/><!--ref points to Zodiac injection--><property name= "Order" ref=/>Gt <object name= "Order" type= "Springdemo.models.order,springdemo" ><property name= "OrderNo" value= "20170808"/ > </object></objects> </spring> <!--****************** Spring configuration End ******************-->

Four, the code test, the new controller, the code is as follows:

Public ActionResult Index ()        {            Iapplicationcontext ctx = Contextregistry.getcontext ();            Iuserinfo lister = (iuserinfo) ctx. GetObject ("UserInfo");            Viewbag.msg = Lister. Showmeg (); return View ();        }

V. The foreground adds the display @ViewBag. MSG operation results are as follows:

Six, before the finished, but if you want to separate the configuration file out how to do it, in order to achieve the test effect of a new class Newuserinfo code as follows:

public class Newuserinfo:iuserinfo    {public newuserinfo (string name, order order)        {this. UserName = Name;this. by order;        } public string UserName {get; set;} Public Order by {get; set;} public string Showmeg ()        {return name: "+ UserName +" Order Number: "+ Orderby.orderno;        }    }

Create the Objects.xml property setting under the New Folder config to create the contents of the directory as follows:

<?xml version= "1.0" encoding= "Utf-8"? ><objects xmlns= "Http://www.springframework.net" >  <!-- This holds all the container nodes--  <description>an example that demonstrates the simple Ioc features</description>    <!--constructor injection--  <object name= "Newuserinfo" type= "Springdemo.models.newuserinfo,springdemo" >< Constructor-arg index= "0" value= "Jacky"/><constructor-arg index= "1" ref= "Order"/>  </object>  <!--complex Dependency injection--  <object name= "Order" type= "Springdemo.models.order,springdemo" ><property name= " OrderNo "value=" 20170909 "/>  </object>   </objects>

Viii. modify Web. config to specify Objects.xml as the parsing dependency

<resource uri= "~/config/objects.xml"/><!--specified document--

Nine, under the home controller to establish the action Newuserinfo code as follows:

Public ActionResult Newuserinfo ()        {            Iapplicationcontext ctx = Contextregistry.getcontext ();            Iuserinfo lister = (iuserinfo) ctx. GetObject ("Newuserinfo");            Viewbag.msg = Lister. Showmeg (); return View ();        }

Ten, the foreground adds the display @ViewBag. MSG operation results are as follows:

Summary: The IOC has brought us a lot of convenience, and when we find it difficult to use simple factories, we can use IOC instead, and most of them support AOP.

Good luck, June.