【C015366】Spring配置内容如下：

<aop:aspectj-autoproxy />

<bean id="observer" class="demo.Observer"  />

<bean id="myBean" class="demo.MyBean"  />

<bean id ="yourBean" class="demo.YourBean"  />

则以下代码： 

public class MyBean {

 public void show(){

  System.out.println("My Bean execute!");

 }

}

public class YourBean {

 public void show(){

  System.out.println("Your Bean execute!");

 }

}

@Aspect

public class Observer {

 @Pointcut("execution(* demo.My*.*(..))")

 public void point(){} 

 @Before("point()")

 public void doBefore(){

  System.out.println("doBefore");

 }

}

public class TestAop {

 public static void main(String[] args) {

  ApplicationContext ac = 

 new ClassPathXmlApplicationContext("applicationContext.xml"); 

  MyBean myBean1 = (MyBean) ac.getBean("myBean");

  YourBean yourBean = (YourBean) ac.getBean("yourBean");

  myBean1.show();

  yourBean.show();

 }

}

输出结果是（ ）

• A.doBefore
  
  My Bean execute!
  
  Your Bean execute!

• B.doBefore
  
  My Bean execute!
  
  doBefore
  
  Your Bean execute!

• C.My Bean execute!
  
  Your Bean execute!

• D.My Bean execute!
  
  doBefore
  
  Your Bean execute!