package com.springexample;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class RunMyProgram {
	public static void main(String[] args) {
		ApplicationContext context = new ClassPathXmlApplicationContext("beans.xml");
		StudentHolder studentHolder = (StudentHolder) context.getBean("studentHolder");
			studentHolder.displayStudentDetails();
			studentHolder.showStudentName();
	}
}

package com.springexample;

public class StudentHolder {
	Student student;

	public Student getStudent() {
		return student;
	}

	public void setStudent(Student student) {
		this.student = student;
	}	
	
	public void displayStudentDetails(){
		System.out.println("Student Details");
		System.out.println("---------------");
		System.out.println("Student No: "+student.getStudentNo());
		System.out.println("Student Name: "+student.getStudentName());
	}
	
	public void showStudentName(){
		System.out.println(student.getStudentName());
	}
}

<?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"
	xmlns:context="http://www.springframework.org/schema/context"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
		http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">

	<bean id="student" class="com.springexample.Student">
		<property name="studentNo" value="1001" />
		<property name="studentName" value="John Peter" />
	</bean>
	
	<bean id="studentHolder" class="com.springexample.StudentHolder">
		<property name="student" value="#{student}" />
	</bean>
	
	<bean id="mylogger" class="com.springexample.MyLogger" />
	
	<aop:config>
		<aop:aspect ref="mylogger">
			<aop:pointcut expression="this(com.springexample.StudentHolder)" id="studentDisplayLogsPnt"/>
			
			<aop:before pointcut-ref="studentDisplayLogsPnt" method="beforeDisplay" />
			<aop:after pointcut-ref="studentDisplayLogsPnt" method="afterDisplay" />
		</aop:aspect>
	</aop:config>

</beans>

package com.springexample;

public class MyLogger {
	public void beforeDisplay(){
		System.out.println("Before display!");
	}
	public void afterDisplay(){
		System.out.println("After display!");
	}
}

package com.springexample;

public class Student {
	private int studentNo;
	private String studentName;
	
	public int getStudentNo() {
		return studentNo;
	}
	public void setStudentNo(int studentNo) {
		this.studentNo = studentNo;
	}
	public String getStudentName() {
		return studentName;
	}
	public void setStudentName(String studentName) {
		this.studentName = studentName;
	}	
}