Spring的注解方式实现AOP入门

Question

-------------我是照着传智播客视频做的，但是照着做也出错，！！！下面是我的xml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"
xsi:schemaLocation="http://www.springframework.org/schema/beans 
    http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
    http://www.springframework.org/schema/aop
    http://www.springframework.org/schema/aop/spring-aop-2.5.xsd">
    <aop:aspectj-autoproxy/>//加上这一句就找不到下面的bean去掉能找到bean
<bean id="personService" class="cn.com.service.impl.PersonServiceBean"/>
<bean id="myInterceptor" class="cn.com.service.MyInterceptor"/>
<bean id="haha" class="cn.com.Guo"/>

</beans>
--------------我的测试类是：
package cn.com.test;import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;import cn.com.service.PersonService;public class AOPTest { public static void main(String[] arg){
ApplicationContext ctx = new ClassPathXmlApplicationContext("applicationContext.xml");
PersonService personBean = (PersonService)ctx.getBean("personService");
personBean.save();
}
}//执行该代码出现下卖弄异常
--------------产生的异常是：
Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'personService' defined in class path resource [applicationContext.xml]: Initialization of bean failed; nested exception is java.lang.IllegalArgumentException: Pointcut is not well-formed: expecting '(' at character position 0
anyMethod
^ at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:478)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
at java.security.AccessController.doPrivileged(Native Method)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:220)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:729)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:381)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)
at cn.com.Guo.main(Guo.java:12)
Caused by: java.lang.IllegalArgumentException: Pointcut is not well-formed: expecting '(' at character position 0
anyMethod
^ at org.aspectj.weaver.tools.PointcutParser.resolvePointcutExpression(PointcutParser.java:334)
at org.aspectj.weaver.tools.PointcutParser.parsePointcutExpression(PointcutParser.java:309)
at org.springframework.aop.aspectj.AspectJExpressionPointcut.buildPointcutExpression(AspectJExpressionPointcut.java:205)
at org.springframework.aop.aspectj.AspectJExpressionPointcut.checkReadyToMatch(AspectJExpressionPointcut.java:192)
at org.springframework.aop.aspectj.AspectJExpressionPointcut.getClassFilter(AspectJExpressionPointcut.java:173)
at org.springframework.aop.support.AopUtils.canApply(AopUtils.java:198)
at org.springframework.aop.support.AopUtils.canApply(AopUtils.java:253)
at org.springframework.aop.support.AopUtils.findAdvisorsThatCanApply(AopUtils.java:287)
at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.findAdvisorsThatCanApply(AbstractAdvisorAutoProxyCreator.java:113)
at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.findEligibleAdvisors(AbstractAdvisorAutoProxyCreator.java:85)
at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.getAdvicesAndAdvisorsForBean(AbstractAdvisorAutoProxyCreator.java:66)
at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.wrapIfNecessary(AbstractAutoProxyCreator.java:345)
at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.postProcessAfterInitialization(AbstractAutoProxyCreator.java:309)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:361)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1342)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:471)
... 14 more

Answer 1

你的web.xml配置没,你的save()怎样写的?

Answer 2

<aop:aspectj-autoproxy/>加上这一句就找不到下面bean不加这句能正常执行，save中只有一句好System.out.println（“hahah”）；

Answer 3

package cn.com.service;import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;@Aspect
public class MyInterceptor {
@Pointcut("execution(* cn.com.service.impl.PersonServiceBean.*(..))")
private void anyMethod(){}
@Before("anyMethod")
public void doAccessCheck(){
System.out.println("前置通知");
}
}

Answer 4

package cn.com.service;import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;@Aspect
public class MyInterceptor {
@Pointcut("execution(* cn.com.service.impl.PersonServiceBean.*(..))")
private void anyMethod(){}
@Before("anyMethod")
public void doAccessCheck(){
System.out.println("前置通知");
}
}
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