spring：采用Annotation方式实现AOP

我现在刚接触AOP，采用Annotation方式实现AOP时出现了一个错误，我不知道是哪里错了，希望大家能帮我找找
一个Aspect类(SecurityHandler.java)
package com.spring;import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;@Aspect
public class SecurityHandler {

@Pointcut("execution(* add*(..))")
private void allAddMethod(){};

@Before("allAddMethod()")
private void checkSecurity() {
System.out.println("----------checkSecurity()---------------");
}

}
一个接口类(UserManager.java)
package com.spring;public interface UserManager {

public void addUser(String name,String password);

}
一个UserManager接口的实现类(UserManagerImpl.java)
package com.spring;public class UserManagerImpl implements UserManager { @Override
public void addUser(String name, String password) {
System.out.println("--------UserManagerImpl.addUser()-------"); }}
一个客户端类(Client.java)
package com.spring;import org.springframework.beans.factory.BeanFactory;
import org.springframework.context.support.ClassPathXmlApplicationContext;public class Client { public static void main(String[] args) {

BeanFactory factory = new ClassPathXmlApplicationContext("applicationContext.xml");

UserManager userManager = (UserManager)factory.getBean("userManager");

userManager.addUser("ZhangSan", "123");

}}
applicationContext.xml配置文件
<?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:tx="http://www.springframework.org/schema/tx"
     xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
           http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd
           http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd">
<aop:aspectj-autoproxy/>
<bean id="securityHandler" class="com.spring.SecurityHandler"/>           
<bean id="userManager" class="com.spring.UserManagerImpl"/>
</beans>
错误描述：
当我运行Client类时，Console面板输出的错误信息如下
Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userManager' defined in class path resource [applicationContext.xml]: Initialization of bean failed; nested exception is java.lang.IllegalArgumentException: error at ::0 can't find referenced pointcut allAddMethod
Caused by: java.lang.IllegalArgumentException: error at ::0 can't find referenced pointcut allAddMethod
at org.aspectj.weaver.tools.PointcutParser.parsePointcutExpression(PointcutParser.java:315)
at org.springframework.aop.aspectj.AspectJExpressionPointcut.buildPointcutExpression(AspectJExpressionPointcut.java:172)
at org.springframework.aop.aspectj.AspectJExpressionPointcut.checkReadyToMatch(AspectJExpressionPointcut.java:162)
at org.springframework.aop.aspectj.AspectJExpressionPointcut.getClassFilter(AspectJExpressionPointcut.java:103)
at org.springframework.aop.support.AopUtils.canApply(AopUtils.java:171)
at org.springframework.aop.support.AopUtils.canApply(AopUtils.java:231)
at org.springframework.aop.support.AopUtils.findAdvisorsThatCanApply(AopUtils.java:256)
at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.findEligibleAdvisors(AbstractAdvisorAutoProxyCreator.java:68)
at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.getAdvicesAndAdvisorsForBean(AbstractAdvisorAutoProxyCreator.java:54)
at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.postProcessAfterInitialization(AbstractAutoProxyCreator.java:247)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:311)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1038)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:420)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:245)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:141)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:242)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:156)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:290)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:348)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:92)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:77)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:68)
at com.spring.Client.main(Client.java:13)