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((Student) context.getBean("student"));
	}
}

package com.springexample;

import org.springframework.stereotype.Component;

@Component
public class StudentHolder {
	public void displayStudentDetails(Student student){
		System.out.println("Student Details");
		System.out.println("---------------");
		System.out.println("Student No: "+student.getStudentNo());
		System.out.println("Student Name: "+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">
	
	<aop:aspectj-autoproxy />
	<context:component-scan base-package="com.springexample" />
	<bean id="myLogger" class="com.springexample.MyLogger" />
</beans>

package com.springexample;


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

@Aspect
public class MyLogger {
	@Pointcut("execution(* *.displayStudentDetails(..))")
    public void myPointcut(){}
    
	@Before("myPointcut()")
	public void beforeDisplay(){
		System.out.println("Before display!");
	}
	
	@After("myPointcut()")
	public void afterDisplay(){
		System.out.println("After display!");
	}
}

package com.springexample;

import org.springframework.stereotype.Component;

@Component
public class Student {
	private int studentNo;
	private String studentName;
	
	public Student(){
		this.studentNo = 1001;
		this.studentName = "John Peter";
	}
	
	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;
	}	
}