[Spring] Before Advice

1. 객체생성

<bean id = "target" class="spring.aop.entity.NewlecExam" p:kor="1" p:eng="2/>

2. 부작업(advice) 세팅

<bean id="logBeforeAdvice" class="spring.aop.advice.LogbeforeAdvice" />

3. Proxy 생성 : 리스트에 추가

<bean id="proxy" class="org.springframework.aop.framework.ProxyFactoryBean">
	<property name="target" ret="target"/>
     <!-- handler 세팅 (interceptorNames)-->
		<property name="interceptorNames">
        	<list>
              <value>logAroundAdvice</value>
              <value>logBeforeAdvice</value>
          	</list>
        </property>
</bean>

4. LogBeforeAdvice.class

Implements 는 MethodBeforeAdvice를 받음
Around Advice와는 다르게 Before에 실행될 구문만 작성하면됨. Proxy 세팅 필요없음