关于Spring 基于借口的AOP报错
@Before("execution(* com.spring.Master.*(..))")
Master是一个类，实现了MyInterface这个借口，按照上面这样写不报错，一切正常
但是把Master换成MyInterface就报错了,,求各位大神看下问题在哪

主要代码如下

public interface WorkInterface {

	public void dowork();

}

@Component("master")

public class Master implements WorkInterface{



	@Override

	public void dowork() {

		// TODO Auto-generated method stub

		System.out.println("Working after meal...");

	}



}

public class DynamicProxyFactory{

	@Resource

	private Servant servant;



//	@Before("execution(* com.spring.WorkInterface.*(..))")

	@Before("execution(* com.spring.Master.*(..))")

	public void before(){	

		servant.dowork();

	}

}

public class Test {

	public static void main(String[] args) {

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

		WorkInterface master=(WorkInterface)factory.getBean("master");

		master.dowork();

	}

}

XML如下：

<?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:tx="http://www.springframework.org/schema/tx"

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

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

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

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

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

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

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

					http://www.springframework.org/schema/beans/spring-beans-3.0.xsd

					http://www.springframework.org/schema/tx

					http://www.springframework.org/schema/tx/spring-tx-3.0.xsd

					http://www.springframework.org/schema/context

					http://www.springframework.org/schema/context/spring-context-3.0.xsd

					http://www.springframework.org/schema/util 

					http://www.springframework.org/schema/util/spring-util-3.0.xsd

					http://www.springframework.org/schema/cache 

					http://www.springframework.org/schema/cache/spring-cache.xsd

					http://www.springframework.org/schema/task 

					http://www.springframework.org/schema/task/spring-task-3.0.xsd

					http://www.springframework.org/schema/jdbc

					http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd

					http://www.springframework.org/schema/aop 

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



					

    <!-- 启用组件扫描 -->

	<context:component-scan base-package="com.spring"/>

	<!-- 启用注解注入 -->

	<context:annotation-config/>

	<!-- 启用AspectJ的-->

	<aop:aspectj-autoproxy />

</beans>

------解决方案--------------------
看错误日志是： 注入 Servant 的时候生成的代理对象和Servant类型不匹配造成的错误。用servant的接口试试
------解决方案--------------------
将这里的
public?class?DynamicProxyFactory{
????@Resource
????private?Servant?servant;

Servant servant; 改成 WorkInterface servant;

其他有 @Resource 及@Autowired&nbs