Annotation

11583 ワード

テキストリンク

ネームスペースからコンテキストを追加

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:p="http://www.springframework.org/schema/p"
	xmlns:context="http://www.springframework.org/schema/context"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd">
	<!-- 
	base-package에 설정된 패키지를 포함해서 하부를 모두 scan해서
	@Component나 @Component로부터 파생된 어노테이션이 설정된 클래스를
	모두 bean으로 생성해라
	 -->
	<context:component-scan base-package="polymorphism"></context:component-scan>

</beans>

package polymorphism;

import org.springframework.stereotype.Component;

//id나 name 미지정시 자동으로 lgTV(앞글자 소문자)로 bean을 요청할 수 있다
@Component
public class LgTV implements TV {
	public void powerOn() {
		System.out.println("LgTV -- 전원 켠다");
	}
	public void powerOff() {
		System.out.println("LgTV -- 전원 끈다");
	}
	public void volumeUp() {
		System.out.println("LgTV -- 소리 올린다");
	}
	public void volumeDown() {
		System.out.println("LgTV -- 소리 내린다");
	}
}

TVUser

package polymorphism;



import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.GenericXmlApplicationContext;

public class TVUser {
	static BeanFactory factory = new BeanFactory();
	
	public static void main(String[] args) {
		
		AbstractApplicationContext factory = 
				new GenericXmlApplicationContext("applicationContext.xml");
		
		TV tv = (TV)factory.getBean("lgTV");
		tv.powerOn();
		tv.powerOff();
		tv.volumeUp();
		tv.volumeDown();
		
		factory.close();   
	}
}