spring-Printer Case

1. Guide Package

<!--beans-->
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-beans</artifactId>
    <version>4.2.3.RELEASE</version>
</dependency>
<!--context-->
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-context</artifactId>
    <version>4.2.2.RELEASE</version>
</dependency>
2. Creating classes and Interfaces

2.1 Colors

In the 2.1.1ColorInk class

 Public class Implements Ink {    public  String getColor () {        return ' Red ';    }}

2.1.2 in Grayink class

 Public class Implements Ink {    public  String getColor () {        return ' White ';    }}

2.1.3 The Ink interface

 Public Interface Ink {    // method to get color public      String getColor ();}

2.2 Paper

2.2.1 in A4paper class

 Public class Implements Paper {    public  String getpaper () {        return "A4 paper";    }}

2.2.2 in B5paper class

 Public class Implements Paper {    public  String getpaper () {        return "B5 paper";    }}

2.2.3 The paper interface

 Public Interface Paper {     public  String getpaper ();}

2.3 Printer

 Public classPrinter {Privateink Ink; PrivatePaper Paper;  Public voidprint () {System.out.println ("+ink.getcolor () +" color of the ink cartridges on the "+paper.getpaper () +" printed on the old original you dare to class??? "); }     PublicInk Getink () {returnInk; }     Public voidsetink (Ink ink) { This. Ink =Ink; }     PublicPaper Getpaper () {returnpaper; }     Public voidSetpaper (Paper Paper) { This. paper =paper; }}

3.applicationcontext.xml file

<?xml version= "1.0" encoding= "UTF-8"? ><beans xmlns= "Http://www.springframework.org/schema/beans"Xmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance"xsi:schemalocation= "Http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd<!--ioc--> <bean id= "Happyservice"class= "Cn.bdqn.service.HappyService" > <!--di Dependency injection--<property name= "info" value= "Spring" ></prop Erty> </bean> <!--printer--<bean id= "Colorink"class= "Cn.bdqn.printer.ink.ColorInk" ></bean> <bean id= "Grayink"class= "Cn.bdqn.printer.ink.GrayInk" ></bean> <bean id= "B5paper"class= "Cn.bdqn.printer.paper.B5Paper" ></bean> <bean id= "A4paper"class= "Cn.bdqn.printer.paper.A4Paper" ></bean> <bean id= "Pinter"class= "Cn.bdqn.printer.print.Printer" > <property name= "Ink" ref= "Colorink" ></property> <propert Y name= "paper" ref= "A4paper" ></property> </bean></beans>

4. Testing

@Test
Printer
public void test02 () {
    ApplicationContext ctx=new classpathxmlapplicationcontext ("Applicationcontext.xml");
    Printer pp=  (Printer) Ctx.getbean ("Pinter");
    Pp.print ();
}

spring-Printer Case