springAOP : Before

Employee.java

=========

package com.mohan;

public  class Employee{

          public void msg(){System.out.println("msg() method invoked");}

          public int m(){System.out.println("m() method invoked");return 2;}

          public int k(){System.out.println("k() method invoked");return 3;}

}

      

TrackEmployee.java

=============

package com.mohan;

import org.aspectj.lang.JoinPoint;

public class TrackEmployee{

    public void myadvice(JoinPoint jp)//it is advice

    {

        System.out.println("additional concern");

        //System.out.println("Method Signature: "  + jp.getSignature());

    }

}

Beans.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: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">   

 

    <bean id="empBean" class="com.mohan.Employee">   </bean> 

    <bean id="trackEmp" class="com.mohan.TrackEmployee"></bean>       

    <bean class="org.springframework.aop.aspectj.annotation.AnnotationAwareAspectJAutoProxyCreator"></bean> 

         

</beans>   

Test.java

======

package com.mohan;

import org.springframework.context.ApplicationContext;

import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Test{

          public static void main(String[] args){

        ApplicationContext context = new ClassPathXmlApplicationContext("Beans.xml");

        Employee e = (Employee) context.getBean("opBean");

        System.out.println("calling msg...");

        e.msg();

        System.out.println("calling m...");

        e.m();

        System.out.println("calling k...");

        e.k();

          }

}