public interface Sleepable {
    public void sleep();
}
public class Human implements Sleepable {
    @Override
    public void sleep() {
        System.out.println("我要睡覺了！");
    }
}

下面是< aop:advisor>的實(shí)現(xiàn)方式：

//定義通知
public class SleepHelper implements MethodBeforeAdvice,AfterReturningAdvice{
    @Override
    public void before(Method arg0, Object[] arg1, Object arg2)
            throws Throwable {
        System.out.println("睡覺前要脫衣服！");
    }
    @Override
    public void afterReturning(Object arg0, Method arg1, Object[] arg2,
            Object arg3) throws Throwable {
        System.out.println("起床后要穿衣服！");
    }
}

//aop配置
<bean id="sleepHelper" class="com.ghs.aop.SleepHelper"></bean>
<aop:config>
    <aop:pointcut expression="execution(* *.sleep(..))" id="sleepPointcut"/>
    <aop:advisor advice-ref="sleepHelper" pointcut-ref="sleepPointcut"/>
</aop:config>
<bean id="human" class="com.ghs.aop.Human"/>

下面是< aop:aspect>的實(shí)現(xiàn)方式：

//定義切面
public class SleepHelperAspect{
    public void beforeSleep(){
        System.out.println("睡覺前要脫衣服！");
    }
    public void afterSleep(){
        System.out.println("起床后要穿衣服！");
    }
}

//aop配置
<bean id="sleepHelperAspect" class="com.ghs.aop.SleepHelperAspect"></bean>
<aop:config>
    <aop:pointcut expression="execution(* *.sleep(..))" id="sleepPointcut"/>
    <aop:aspect ref="sleepHelperAspect">
        <!--前置通知-->
        <aop:before method="beforeSleep" pointcut-ref="sleepPointcut"/>
        <!--后置通知-->
        <aop:after method="afterSleep" pointcut-ref="sleepPointcut"/>
    </aop:aspect>
</aop:config>
<bean id="human" class="com.ghs.aop.Human"/>

測試代碼如下：

public class TestAOP {
    public static void main(String[] args) {
        method1();
//      method2();
    }
    private static void method1() {
        ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext1.xml");
        Sleepable sleeper = (Sleepable) context.getBean("human");
        sleeper.sleep();
    }
    private static void method2() {
        ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext2.xml");
        Sleepable sleeper = (Sleepable) context.getBean("human");
        sleeper.sleep();
    }

//執(zhí)行結(jié)果

睡覺前要脫衣服！

我要睡覺了！

起床后要穿衣服！

}

2、使用場景不同

< aop:advisor>大多用于事務(wù)管理。

例如：

<!-- 會(huì)重復(fù)讀，不會(huì)臟讀事務(wù) -->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
    <tx:attributes>
        <tx:method name="*" timeout="120" propagation="REQUIRED" rollback-for="Exception" />
    </tx:attributes>
</tx:advice>
<aop:config proxy-target-class="true">
    <aop:pointcut id="txPointCut" expression="..."/>
    <aop:advisor advice-ref="txAdvice" pointcut-ref="txPointCut" />
</aop:config>

< aop:aspect>大多用于日志，緩存

其實(shí)，不管是< aop:advisor>還是< aop:aspect>最終的實(shí)現(xiàn)邏輯是一樣的。