Spring_Annotation_AOP

하나.서비스 클래스 구성 요소 구성

@Component
public class UserService {
	
	private UserDAO userDAO;
	

	public void add(User u){
		this.userDAO.save(u);
	}

	public UserDAO getUserDAO() {
		return userDAO;
	}
	@Resource(name="userDAOImpl")
	public void setUserDAO(UserDAO userDAO) {
		this.userDAO = userDAO;
	}
	
}

@Resource 자동 어셈블
둘.애플리케이션 Context 구성xml 파일

<?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:context="http://www.springframework.org/schema/context"
    xmlns:aop="http://www.springframework.org/schema/aop"
    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.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd">
	<!--        AutowiredAnnotationBeanPostProcessor   ，        -->
	<context:annotation-config/>
	<!--         -->
	<context:component-scan base-package="com.job"/>
	<!--   aop     -->
	<aop:aspectj-autoproxy/>

</beans>

셋.슬라이스 클래스 작성

@Aspect
@Component
public class LogInteceptor {
	
	@Before("execution(public void com.job.dao.UserDAOImpl.save(com.job.model.User))")
	public void beforeMethod(){
		System.out.println("Method start!");
	}
   @Pointcut("execution (public * com.job.dao..*.save(..))")
	public void method(){
	};
	
	@Before("method()")
	public void beforeMethod(){
		System.out.println("Method start!");
	}
	
	@Around("method()")
	public void around(ProceedingJoinPoint pjp) throws Throwable{
		System.out.println("around  before!");
		pjp.proceed();
		System.out.println("around after");
	}

}

참고: 먼저 구성 요소@Component로 등록해야 합니다.
탄젠트 등록
@Before("execution(public void com.job.dao.UserDAOImpl.save(com.job.model.User))")
@Before는 호출 방법이 실행되기 전에 수행됨을 나타냅니다.
execution(public void com.job.dao.UserDAO Impl.save(com.job.model.User)는 특정 클래스를 실행하는 것을 나타낸다.방법
"execution (public * com.job.dao..*.save(..))"
..하위 패키지 포함
* 모든 클래스를 나타냅니다.
넷.테스트

public class UserServiceTest {

	@Test
	public   void test(){
		ApplicationContext ac =  new ClassPathXmlApplicationContext("applicationContext.xml");
		UserService service = (UserService)ac.getBean("userService");
		User u = new User();
		u.setUsername("me haha  ");
		service.add(u);
	}
}

다섯.테스트 결과
Method start!
me haha  ---haha!