Spring 2.0 AOP Simple 예제

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Spring

2008. 7. 27.

Spring 2.0 AOP Simple 예제
Spring 2.0 AOP Simple 예제

1.        필요한 파일을 클래스 패스에 추가한다.
        C:\java\spring-framework-2.5.3\dist\spring.jar
        common-logging.jar파일을 다운로드(http://commons.apache.org/logging/)
commons-logging-1.1.1.jar 파일을 클래스패스에 추가
        AOP를 위해 C:\java\spring-framework-2.5.3\\lib\aspectJ 아래 aspectjrt.jar 와 aspectjrt.jar 파일을 클래스 패스에 추가

2.        springaop라는 자바프로젝트를 작성 후 Animal.java 인터페이스를 작성

[Animal.java]
package springaop;

public interface Animal {
    public void walwal();
}

3.        Tomdog.java 인터페이스 구현 클래스 제공

        [TomDog.java]
package springaop;

public class TomDog implements Animal {
    public void walwal() {
            System.out.println("I'm Tomdog...");
    }
}

4.        Aspect 작성

[AnimalAOP.java]
package springaop;

import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;

@Aspect
public class AnimalAOP {
    @Pointcut("execution(public * Animal.walwal(..))")
    public void greeting() {            
    }
    
    @Before("greeting()")
    public void hi() {
            System.out.println("Hi ... ");
    }
    
    @AfterReturning("greeting()")
    public void doBeforeOne() {
            System.out.println("Good Bye ~~~");
    }
}


5.        Application-Context.xml 작성

[application-context.xml]
<beans xmlns="http://www.springframework.org/schema/beans"
           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
              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/aop
             http://www.springframework.org/schema/aop/spring-aop.xsd">

         <!-- this is the object that will be proxied by Spring's AOP infrastructure -->
       <bean id="tomdog" class="springaop.TomDog" />
      
       <aop:aspectj-autoproxy />
      
       <!-- this is the actual advice itself -->
       <bean id="animalAOP" class="springaop.AnimalAOP" />
  

</beans>

6.        TestClient 작성

[TestClient.java]
package springaop;

import org.springframework.beans.factory.BeanFactory;
import org.springframework.context.support.FileSystemXmlApplicationContext;;

public class TestClient {
    public static void main(String[] args) {
            BeanFactory bean = new FileSystemXmlApplicationContext("C:\\java\\Tomcat 5.5\\webapps\\SpringAOP\\springaop\\application-context.xml");
            
            Animal tomdog = (Animal)bean.getBean("tomdog");
            tomdog.walwal();
    }
}