Java Configuration

[ 이전 글 ] @Component 분석 ( 3 )

@Component 분석 ( 3 )

<context:component-scan base-package="spring.di.ui"/>
<bean id="exam" class="spring.di.entity.ScoreExam" p:kor="10"  p:eng="20"/>

XML의 내용을 아래와 같이 바꿀 수 있다

package spring.di;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;

import spring.di.entity.Exam;
import spring.di.entity.ScoreExam;

@ComponentScan("spring.di.ui")
@Configuration
public class DIConfig {
	@Bean
	public Exam exam() {
		return new ScoreExam(); // IoC Container에 담김
	}
}

main() 부분도 변경하자

//		ApplicationContext context = new ClassPathXmlApplicationContext("spring/di/setting.xml");

	        // 첫번째 방법
//		ApplicationContext context = new AnnotationConfigApplicationContext(DIConfig.class);

		// 두번째 방법
		AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext();
		context.register(DIConfig.class, OtherConfig.class); // 1개도 가능
		context.refresh();