具体异常信息如下：
1 Exception in thread "main" org.springframework.beans.factory.BeanNotOfRequiredTypeException: Bean named ‘hello‘ must be of type [com.hyq.chapter08_04_3.HelloImpl], but was actually of type [com.sun.proxy.$Proxy13] 2 at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:376) 3 at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200) 4 at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:979) 5 at com.hyq.chapter08_04_3.AspectTest.main(AspectTest.java:10)
我在网上搜了一大堆解决方法都不管用，后来发现只要在spring的配置文件bean.xml中的<aop:aspectj-autoproxy/>加上一个属性 proxy-target-class="true"，即为：
<aop:aspectj-autoproxy proxy-target-class="true"/>
网上查了一下proxy-target-class="true"的相关作用如下：
Spring AOP基于注解的“零配置”方式---org.springframework.beans.factory.BeanNotOfRequiredTypeException
原文：http://www.cnblogs.com/zest/p/5878020.html