把前置通知和後置通知都寫到一個通知中，組成了環繞通知

新建類，實現MethodInterceptor（方法攔截器）介面

public class MyAround implements MethodInterceptor{

	@Override
	public Object invoke(MethodInvocation arg0) throws Throwable {
		System.out.println("11111111111");
		Object result = arg0.proceed();
		System.out.println("22222222222");
		return result;
	}

}
 

xml

  <bean id="myaround" class="com.lee.advice.MyAround"/>
  <aop:config>  
   		<aop:pointcut expression="execution(* com.lee.service.*.*(..))" id="mypoint"/>
   		<aop:advisor advice-ref="myaround" pointcut-ref="mypoint"/>
   </aop:config>

切點

public class DemoService {
	public void demoMethod() {
		System.out.println("DemoMethod execute");
	}
}

 

測試程式碼在這裡插入程式碼片

public class Test {
	public static void main(String[] args) {
		ApplicationContext ac = new ClassPathXmlApplicationContext("beans.xml");
		DemoService ds = (DemoService) ac.getBean("demo");
		ds.demoMethod();
	}
}

輸出

11111111111
DemoMethod execute
22222222222