Spring. Net learning notes (2)-dependency injection, spring.net learning notes

Spring. Net learning notes (2)-dependency injection, spring.net learning notes
I. Development Environment

Operating System: Win10

Compiler: VS2013

Framework Version:. net 4.5

Spring version: 1.3.1

Ii. Assembly

Spring. Core. dll

Common. Loggin. dll

Iii. Project Structure

Namespace SpringNetIoc. IScene {public interface IBall {void DoSport ();}}2. Create two classes that implement the IBall Interface

Namespace SpringNetIoc. Scene {public class Basketball: IBall {public void DoSport () {Console. WriteLine ("Basketball ");}}}

Namespace SpringNetIoc. Scene {public class Tennis: IBall {public void DoSport () {Console. WriteLine (" ");}}}

3. Create a Person class

namespace SpringNetIoc.Role{    public class Person    {        public IBall Ball { get; set; }        public void Hobby()        {            Ball.DoSport();        }    }}

4. Configure Spring.net

<?xml version="1.0" encoding="utf-8" ?><configuration>  <configSections>    <sectionGroup name="spring">      <section name="context" type="Spring.Context.Support.ContextHandler,Spring.Core"/>      <section name="objects" type="Spring.Context.Support.DefaultSectionHandler,Spring.Core"/>    </sectionGroup>  </configSections>  <spring xmlns="http://www.springframework.net">    <context>      <resource uri="config://spring/objects"></resource>    </context>    <objects xmlns="http://www.springframework.net">      <object name="basketball" type="SpringNetIoc.Scene.Basketball,SpringNetIoc"></object>      <object name="tennis" type="SpringNetIoc.Scene.Tennis,SpringNetIoc"></object>      <object name="person" type="SpringNetIoc.Role.Person,SpringNetIoc">        <!--<property name="Ball" ref="basketball"></property>-->        <property name="Ball" ref="tennis"></property>      </object>    </objects>  </spring>    <startup>    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />  </startup></configuration>

5. output results in the console

namespace SpringNetIoc{    class Program    {        static void Main(string[] args)        {            IApplicationContext context = ContextRegistry.GetContext();            Person person = context.GetObject("person") as Person;            person.Hobby();            Console.Read();        }    }}

V. program description

To some extent, the coupling problem between Person and IBall is solved, but coupling is not completely solved, but only put in xml file. This dependency is formed by a container as needed, that is, the required interface implementation is injected into the class that requires it. The IoC mode can be seen as container + factory. However, all the objects to be generated in this large factory are defined in the xml file.

6. References

Http://www.cnblogs.com/GoodHelper/archive/2009/10/26/SpringNET_DI.html