Error in Spring Aop

Hi



Am beginner for Spring framework. Now am leaning Spring AOP. When I use this below mentioned code



am getting error like this,

Nov 30, 2013 5:24:18 PM org.springframework.context.support.ClassPathXmlAp plicationContext prepareRefresh



INFO: Refreshing org.springframework.context.support.ClassPathXmlAp plicationContext@988707: startup date [Sat Nov 30 17:24:17 IST 2013]; root of context hierarchy



Nov 30, 2013 5:24:18 PM org.springframework.beans.factory.xml.XmlBeanDefin itionReader loadBeanDefinitions



INFO: Loading XML bean definitions from class path resource [aspectFile.xml]



Nov 30, 2013 5:24:18 PM org.springframework.beans.factory.support.DefaultL istableBeanFactory destroySingletons



INFO: Destroying singletons in org.springframework.beans.factory.support.DefaultL istableBeanFactory@b99d08: defining beans [org.springframework.aop.config.internalAutoProxyCr eator,trianle,AspectClass]; root of factory hierarchy



Exception in thread "main" org.springframework.beans.factory.BeanCreationExce ption: Error creating bean with name 'org.springframework.aop.config.internalAutoProxyC reator': Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationExcepti on: Could not instantiate bean class [org.springframework.aop.aspectj.annotation.Annotat ionAwareAspectJAutoProxyCreator]: Constructor threw exception; nested exception is java.lang.NoClassDefFoundError: org/aopalliance/aop/Advice



at org.springframework.beans.factory.support.Abstract AutowireCapableBeanFactory.instantiateBean(Abstrac tAutowireCapableBeanFactory.java:1007)



at org.springframework.beans.factory.support.Abstract AutowireCapableBeanFactory.createBeanInstance(Abst ractAutowireCapableBeanFactory.java:953)



at org.springframework.beans.factory.support.Abstract AutowireCapableBeanFactory.doCreateBean(AbstractAu towireCapableBeanFactory.java:487)



at org.springframework.beans.factory.support.Abstract AutowireCapableBeanFactory.createBean(AbstractAuto wireCapableBeanFactory.java:458)



at org.springframework.beans.factory.support.Abstract BeanFactory$1.getObject(AbstractBeanFactory.java:2 95)



at org.springframework.beans.factory.support.DefaultS ingletonBeanRegistry.getSingleton(DefaultSingleton BeanRegistry.java:223)



at org.springframework.beans.factory.support.Abstract BeanFactory.doGetBean(AbstractBeanFactory.java:292 )



at org.springframework.beans.factory.support.Abstract BeanFactory.getBean(AbstractBeanFactory.java:198)



at org.springframework.context.support.AbstractApplic ationContext.registerBeanPostProcessors(AbstractAp plicationContext.java:741)



at org.springframework.context.support.AbstractApplic ationContext.refresh(AbstractApplicationContext.ja va:464)



at org.springframework.context.support.ClassPathXmlAp plicationContext.<init>(ClassPathXmlApplicationCon text.java:139)



at org.springframework.context.support.ClassPathXmlAp plicationContext.<init>(ClassPathXmlApplicationCon text.java:83)



at org.sasi.springwork.aspect.AsspectApplication.main (AsspectApplication.java:10)



Caused by: org.springframework.beans.BeanInstantiationExcepti on: Could not instantiate bean class [org.springframework.aop.aspectj.annotation.Annotat ionAwareAspectJAutoProxyCreator]: Constructor threw exception; nested exception is java.lang.NoClassDefFoundError: org/aopalliance/aop/Advice



at org.springframework.beans.BeanUtils.instantiateCla ss(BeanUtils.java:163)



at org.springframework.beans.factory.support.SimpleIn stantiationStrategy.instantiate(SimpleInstantiatio nStrategy.java:87)



at org.springframework.beans.factory.support.Abstract AutowireCapableBeanFactory.instantiateBean(Abstrac tAutowireCapableBeanFactory.java:1000)



... 12 more



Caused by: java.lang.NoClassDefFoundError: org/aopalliance/aop/Advice



at java.lang.ClassLoader.defineClass1(Native Method)



at java.lang.ClassLoader.defineClass(Unknown Source)



at java.security.SecureClassLoader.defineClass(Unknow n Source)



at java.net.URLClassLoader.defineClass(Unknown Source)



at java.net.URLClassLoader.access$100(Unknown Source)



at java.net.URLClassLoader$1.run(Unknown Source)



at java.net.URLClassLoader$1.run(Unknown Source)



at java.security.AccessController.doPrivileged(Native Method)



at java.net.URLClassLoader.findClass(Unknown Source)



at java.lang.ClassLoader.loadClass(Unknown Source)



at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)



at java.lang.ClassLoader.loadClass(Unknown Source)



at java.lang.ClassLoader.defineClass1(Native Method)



at java.lang.ClassLoader.defineClass(Unknown Source)



at java.security.SecureClassLoader.defineClass(Unknow n Source)



at java.net.URLClassLoader.defineClass(Unknown Source)



at java.net.URLClassLoader.access$100(Unknown Source)



at java.net.URLClassLoader$1.run(Unknown Source)



at java.net.URLClassLoader$1.run(Unknown Source)



at java.security.AccessController.doPrivileged(Native Method)



at java.net.URLClassLoader.findClass(Unknown Source)



at java.lang.ClassLoader.loadClass(Unknown Source)



at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)



at java.lang.ClassLoader.loadClass(Unknown Source)



at java.lang.ClassLoader.defineClass1(Native Method)



at java.lang.ClassLoader.defineClass(Unknown Source)



at java.security.SecureClassLoader.defineClass(Unknow n Source)



at java.net.URLClassLoader.defineClass(Unknown Source)



at java.net.URLClassLoader.access$100(Unknown Source)



at java.net.URLClassLoader$1.run(Unknown Source)



at java.net.URLClassLoader$1.run(Unknown Source)



at java.security.AccessController.doPrivileged(Native Method)



at java.net.URLClassLoader.findClass(Unknown Source)



at java.lang.ClassLoader.loadClass(Unknown Source)



at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)



at java.lang.ClassLoader.loadClass(Unknown Source)



at org.springframework.aop.aspectj.annotation.Annotat ionAwareAspectJAutoProxyCreator.<init>(AnnotationA wareAspectJAutoProxyCreator.java:53)



at sun.reflect.NativeConstructorAccessorImpl.newInsta nce0(Native Method)



at sun.reflect.NativeConstructorAccessorImpl.newInsta nce(Unknown Source)



at sun.reflect.DelegatingConstructorAccessorImpl.newI nstance(Unknown Source)



at java.lang.reflect.Constructor.newInstance(Unknown Source)



at org.springframework.beans.BeanUtils.instantiateCla ss(BeanUtils.java:148)



... 14 more



Caused by: java.lang.ClassNotFoundException: org.aopalliance.aop.Advice



at java.net.URLClassLoader$1.run(Unknown Source)



at java.net.URLClassLoader$1.run(Unknown Source)



at java.security.AccessController.doPrivileged(Native Method)



at java.net.URLClassLoader.findClass(Unknown Source)



at java.lang.ClassLoader.loadClass(Unknown Source)



at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)



at java.lang.ClassLoader.loadClass(Unknown Source)



... 56 more

my code:



aspectFile.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"



xmlns:context ="http://www.springframework.org/schema/context"



xsi:schemaLocation="http://www.springframework.org/schema/beans



http://www.springframework.org/schem...-beans-3.0.xsd



Index of /schema/context



http://www.springframework.org/schem...ontext-3.0.xsd



Index of /schema/aop



http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">

<aop:aspectj-autoproxy/>

<bean id="triangle" class="org.sasi.springwork.aspect.Triangle">



<property name="name" value="AOP "/>



</bean>

<bean name="AspectClass" class="org.sasi.springwork.aspect.AspectClass"/>



</beans>

package org.sasi.springwork.aspect;

import org.aspectj.lang.annotation.Aspect;



import org.aspectj.lang.annotation.Before;

@Aspect



public class AspectClass {

@Before("execution(public String getName())")



public void login(){



System.out.println("Safe to run");



}

Some one please help me..

Thanks in advance