[오라클자바커뮤니티,스프링교육학원추천.Spring Framework교육은 여기에서,.ProxyFactoryBean을 이용한 Spring Framework AOP구현예제, Pointcut 사용, 사전/사후/주변/예외충고]

[오라클자바커뮤니티,스프링교육학원추천.Spring Framework교육은 여기에서,.ProxyFactoryBean을 이용한 Spring Framework AOP구현예제, Pointcut 사용, 사전/사후/주변/예외충고]

프로그래밍적인 방법을 통해 구현한 이전 SmallMart 예제를 ProxyFactoryBean을 이용하여 구현해 보자. (Pointcut을 사용하여 getProducts 메소드만 충고를 받을 수 있도록 구현)

이전 예제는 다음 URL에서 확인하세요. 

http://oraclejavacommunity.co.kr/bbs/board.php?bo_table=LecSpring&wr_id=285&sca=&sfl=wr_subject%7C%7Cwr_content&stx=SmallMart&sop=and

package oraclejava.training.aop;

public interface SmallMartInterface {

public void getProducts(String productName) throws Exception;

}

package oraclejava.training.aop;

public class SmallMart implements SmallMartInterface{

public void getProducts(String productName) throws Exception{

System.out.println("getProduct()..." + productName);

//throw new Exception("error");

}

}

package oraclejava.training.aop;

import java.lang.reflect.Method;

import org.springframework.aop.MethodBeforeAdvice;

public class BeforeLoggingAdvice implements MethodBeforeAdvice{

public void before(Method arg0, Object[] arg1, Object arg2)

throws Throwable{

String findName = (String)arg1[0];

System.out.println(arg0.getName() + ";;사전충고");

}

}

package oraclejava.training.aop;

import java.lang.reflect.Method;

import org.springframework.aop.AfterReturningAdvice;

public class AfterLoggingAdvice implements AfterReturningAdvice{

public void afterReturning(Object arg0, Method arg1, Object[] arg2,Object arg3) 

throws Throwable{System.out.println(arg1.getName() +  ": 사후충고");

}

}

package oraclejava.training.aop;

import org.aopalliance.intercept.MethodInterceptor;

import org.aopalliance.intercept.MethodInvocation;

 

public class AroundLoggingAdvice implements MethodInterceptor{

public Object invoke(MethodInvocation arg0) throws Throwable{

String findName= (String)arg0.getArguments()[0];

if(findName== null) {

throw new Throwable("예외");

}

System.out.println("메소드실행전");

Object returnedObj= arg0.proceed();

System.out.println("메소드실행후");

return returnedObj;

}

}

package oraclejava.training.aop;

import org.springframework.aop.ThrowsAdvice;

public class ThrowsLoggingAdvice implements ThrowsAdvice{

public void afterThrowing(Throwable throwable){

System.out.println("예외충고 발생...");

}

}

package oraclejava.training.aop;

import org.springframework.aop.framework.ProxyFactory;

import org.springframework.context.support.GenericXmlApplicationContext;

public class SmallMartApp {

public static void main(String[] args) throws Exception{

GenericXmlApplicationContext ctx = new GenericXmlApplicationContext();

ctx.load("smallmart.xml");

ctx.refresh();

SmallMartInterface smallMart = (SmallMartInterface)ctx.getBean("smallMartProxy");

smallMart.getProducts("과자");

ctx.close();

}

}

(/src/main/resources아래) smallmart.xml

<?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:util="http://www.springframework.org/schema/util"

xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd

http://www.springframework.org/schema/context  http://www.springframework.org/schema/context/spring-context-3.2.xsd

http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.2.xsd">

<bean id="smallMartProxy" class="org.springframework.aop.framework.ProxyFactoryBean">

<property name="target">

<ref local="smallMart"/>

</property>

<property name="interceptorNames">

<list>

<value>smallMartAdvisor1</value>

<value>smallMartAdvisor2</value>

<value>smallMartAdvisor3</value>

<value>smallMartAdvisor4</value>

</list>

</property>

</bean>

<bean id="beforeAdvice" class="oraclejava.training.aop.BeforeLoggingAdvice"/>

<bean id="afterAdvice" class="oraclejava.training.aop.AfterLoggingAdvice"/>

<bean id="aroundAdvice" class="oraclejava.training.aop.AroundLoggingAdvice"/>

<bean id="throwsAdvice" class="oraclejava.training.aop.ThrowsLoggingAdvice"/>

<bean id="smallMartAdvisor1" class="org.springframework.aop.support.DefaultPointcutAdvisor">

<property name="advice">

<ref local="beforeAdvice"></ref>

</property>

<property name="pointcut">

   <!--  포인트컷으로 익명 빈을 사용 -->

<bean class="org.springframework.aop.aspectj.AspectJ__EXPRESSION__Pointcut">

<property name="__EXPRESSION__">

<value>execution(* getProducts*(..))</value>

</property>

</bean>

</property>

</bean>

<bean id="smallMartAdvisor2" class="org.springframework.aop.support.DefaultPointcutAdvisor">

<property name="advice">

<ref local="afterAdvice"></ref>

</property>

<property name="pointcut">

   <!--  포인트컷으로 익명 빈을 사용 -->

<bean class="org.springframework.aop.aspectj.AspectJ__EXPRESSION__Pointcut">

<property name="__EXPRESSION__">

<value>execution(* getProducts*(..))</value>

</property>

</bean>

</property>

</bean>

<bean id="smallMartAdvisor3" class="org.springframework.aop.support.DefaultPointcutAdvisor">

<property name="advice">

<ref local="aroundAdvice"></ref>

</property>

<property name="pointcut">

   <!--  포인트컷으로 익명 빈을 사용 -->

<bean class="org.springframework.aop.aspectj.AspectJ__EXPRESSION__Pointcut">

<property name="__EXPRESSION__">

<value>execution(* getProducts*(..))</value>

</property>

</bean>

</property>

</bean>

<bean id="smallMartAdvisor4" class="org.springframework.aop.support.DefaultPointcutAdvisor">

<property name="advice">

<ref local="throwsAdvice"></ref>

</property>

<property name="pointcut">

   <!--  포인트컷으로 익명 빈을 사용 -->

<bean class="org.springframework.aop.aspectj.AspectJ__EXPRESSION__Pointcut">

<property name="__EXPRESSION__">

<value>execution(* getProducts*(..))</value>

</property>

</bean>

</property>

</bean>

<bean id="smallMart" class="oraclejava.training.aop.SmallMart"/>

</beans>

[결과]

SLF4J: Class path contains multiple SLF4J bindings.

SLF4J: Found binding in [jar:file:/C:/java/lib/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/StaticLoggerBinder.class]

SLF4J: Found binding in [jar:file:/C:/Documents%20and%20Settings/Administrator/.m2/repository/ch/qos/logback/logback-classic/1.0.13/logback-classic-1.0.13.jar!/org/slf4j/impl/StaticLoggerBinder.class]

SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.

SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]

INFO : org.springframework.beans.factory.xml.XmlBeanDefinitionReader - Loading XML bean definitions from class path resource [smallmart.xml]

INFO : org.springframework.context.support.GenericXmlApplicationContext - Refreshing org.springframework.context.support.GenericXmlApplicationContext@a63599: startup date [Sun Jun 01 18:33:19 KST 2014]; root of context hierarchy

INFO : org.springframework.beans.factory.support.DefaultListableBeanFactory - Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@16b4f5a: defining beans [smallMartProxy,beforeAdvice,afterAdvice,aroundAdvice,throwsAdvice,smallMartAdvisor1,smallMartAdvisor2,smallMartAdvisor3,smallMartAdvisor4,smallMart]; root of factory hierarchy

getProducts;;사전충고

메소드실행전

getProduct()...과자

메소드실행후

getProducts: 사후충고

INFO : org.springframework.context.support.GenericXmlApplicationContext - Closing org.springframework.context.support.GenericXmlApplicationContext@a63599: startup date [Sun Jun 01 18:33:19 KST 2014]; root of context hierarchy

INFO : org.springframework.beans.factory.support.DefaultListableBeanFactory - Destroying singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@16b4f5a: defining beans [smallMartProxy,beforeAdvice,afterAdvice,aroundAdvice,throwsAdvice,smallMartAdvisor1,smallMartAdvisor2,smallMartAdvisor3,smallMartAdvisor4,smallMart]; root of factory hierarchy

[출처] 오라클자바커뮤니티 - http://www.oraclejavacommunity.co.kr/bbs/board.php?bo_table=LecSpring&wr_id=408

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