<aop:after>
- After Advice는 대상 객체의 메서드가 정상적으로 실행되었는지 아니면 예오를 발생 시켰는지의 여부에 상관없이 메서드 실행이 종료된 이후에 적용되는 Advice로서 try~catch~finally 블록에서 finally 블록과 비슷한 기능을 수행
<aop:around>
- Around Advice는 Before, After Returning, After Throwing, After Advice를 모두 구현할 수 있는 Advice
- Around Advice를 구현한 메서더는 org.aspectj.lang.ProceedingJoinPoint를 반드시 첫 번째 파라미터로 지정해야 함
FaqBoardImpl.java
|
package sp.aop.service;
import org.springframework.stereotype.Component;
@Component("faqBoard")
public class FaqBoardImpl implements Board {
@Override
public String getBoardName() {
// TODO Auto-generated method stub
return "FAQ Board";
}
} |
NoticeBoardImpl.java
|
package sp.aop.service;
import org.springframework.stereotype.Component;
@Component("noticeBoard")
public class NoticeBoardImpl implements Board {
@Override
public String getBoardName() {
// TODO Auto-generated method stub
return "Notice Board";
}
} |
BoardController.java
|
package sp.aop.controller;
import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.ModelAndView;
import sp.aop.service.Board;
public class BoardController extends
org.springframework.web.servlet.mvc.AbstractController {
@Resource(name="noticeBoard")
private Board board;
@Override
protected ModelAndView handleRequestInternal(HttpServletRequest arg0,
HttpServletResponse arg1) throws Exception {
// TODO Auto-generated method stub
System.out.println("<<===== START =====>>");
System.out.println("Board Name-1 : " + board.getBoardName());
System.out.println("<<===== RUNNING =====>>");
System.out.println("Board Name-2 : " + board.getBoardName());
System.out.println("<<===== END =====>>");
return null;
}
} |
|
package sp.aop.advice;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;
public class LogAdvice {
public Object logPrint(ProceedingJoinPoint joinPoint) throws Throwable{
System.out.println("***** START *****");
try{
System.out.println("*");
System.out.println("**");
Object ret = joinPoint.proceed();
System.out.println("***");
System.out.println("****");
return ret;
}finally{
System.out.println("***** END *****");
}
}
public void afterFinally(JoinPoint joinPoint){
System.out.println("***** after finally *****");
System.out.println("joinPoint : " + joinPoint.toString());
}
}
******************************************************************************************
●메서드에는 파라미터를 갖지 않음
●대상 객체 및 호출되는 메서드에 메서드에 대한 정보나 전달되는 파라미터에 대한 정보가 필요한 경우 org.aspectj.lang.JoinPoint를 파라미터로 명시하면 됨.
|
|
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:p="http://www.springframework.org/schema/p"
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-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">
<context:annotation-config/>
<context:component-scan base-package="sp.aop.service"/>
<!-- HandlerMapping 설정 -->
<bean id="simpleUrlHandlerMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
<property name="mappings">
<props>
<prop key="/aoptest01.sp">boardController</prop>
</props>
</property>
</bean>
<!-- 각종 bean 설정 -->
<bean id="boardController" class="sp.aop.controller.BoardController"></bean>
<!-- Advice 클래스를 빈으로 등록 -->
<bean id="timeCheckAdvice" class="sp.aop.advice.TimeCheckAdvice"></bean>
<bean id="logAspect" class="sp.aop.advice.LogAdvice"></bean>
<!-- Aspect 설정 : Advice를 어떤 PointCut에 적용할 지 설정 -->
<aop:config>
<aop:aspect id="logPrtAspect" ref="logAspect">
<aop:pointcut id="logPrint" expression="execution(* sp.aop..*.*(..))"/>
<aop:after pointcut-ref="logPrint" method="afterFinally" />
</aop:aspect>
</aop:config>
</beans> |
|
<<===== START =====>>
***** after finally *****
joinPoint : execution(String sp.aop.service.Board.getBoardName())
Board Name-1 : Notice Board
<<===== RUNNING =====>>
***** after finally *****
joinPoint : execution(String sp.aop.service.Board.getBoardName())
Board Name-2 : Notice Board
<<===== END =====>> |
|
package sp.aop.advice;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;
public class LogAdvice {
public Object logPrint(ProceedingJoinPoint joinPoint) throws Throwable{
System.out.println("***** START *****");
try{
System.out.println("*");
System.out.println("**");
Object ret = joinPoint.proceed();
System.out.println("***");
System.out.println("****");
return ret;
}finally{
System.out.println("***** END *****");
}
}
public void afterFinally(JoinPoint joinPoint){
System.out.println("***** after finally *****");
System.out.println("joinPoint : " + joinPoint.toString());
}
}
******************************************************************************************
●Around Advice를 구현한 메서드는 org.aspectj.lang.ProceedingJoinPoint를 반디스 첫 번째 파라미터로 지정해야 함 - 그렇지 않을 경우 예외 발생
●ProceedingJoinPoint의 proceed() 메서드를 호출하면 프록시 대상 객체의 실제 메서드를 호출하게 된다. 따라서 ProceedingJoinPoint.proceed() 메서드를 호출하기 전과 후에 필요한 작업을 수행할 수 있다.
|
|
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:p="http://www.springframework.org/schema/p"
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-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">
<context:annotation-config/>
<context:component-scan base-package="sp.aop.service"/>
<!-- HandlerMapping 설정 -->
<bean id="simpleUrlHandlerMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
<property name="mappings">
<props>
<prop key="/aoptest01.sp">boardController</prop>
</props>
</property>
</bean>
<!-- 각종 bean 설정 -->
<bean id="boardController" class="sp.aop.controller.BoardController"></bean>
<!-- Advice 클래스를 빈으로 등록 -->
<bean id="timeCheckAdvice" class="sp.aop.advice.TimeCheckAdvice"></bean>
<bean id="logAspect" class="sp.aop.advice.LogAdvice"></bean>
<!-- Aspect 설정 : Advice를 어떤 PointCut에 적용할 지 설정 -->
<aop:config>
<aop:aspect id="logPrtAspect" ref="logAspect">
<aop:pointcut id="logPrint" expression="execution(* sp.aop..*.*(..))"/>
<aop:around pointcut-ref="logPrint" method="logPrint" />
</aop:aspect>
</aop:config>
</beans> |
|
<<===== START =====>>
***** START *****
*
**
***
****
***** END *****
Board Name-1 : Notice Board
<<===== RUNNING =====>>
***** START *****
*
**
***
****
***** END *****
Board Name-2 : Notice Board
<<===== END =====>> |
[참고자료] Spring 3.0 프로그래밍-최범균