spring-aop示例

<?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:p="http://www.springframework.org/schema/p"         xmlns:context="http://www.springframework.org/schema/context"        xmlns:mvc="http://www.springframework.org/schema/mvc"         xmlns:tx="http://www.springframework.org/schema/tx"         xmlns:aop="http://www.springframework.org/schema/aop"    xsi:schemaLocation="          http://www.springframework.org/schema/beans         http://www.springframework.org/schema/beans/spring-beans.xsd         http://www.springframework.org/schema/context         http://www.springframework.org/schema/context/spring-context.xsd         http://www.springframework.org/schema/mvc        http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd                http://www.springframework.org/schema/tx        http://www.springframework.org/schema/tx/spring-tx.xsd        http://www.springframework.org/schema/aop        http://www.springframework.org/schema/aop/spring-aop.xsd">        <bean id="knight" class="p1.BraveKnight">            <constructor-arg ref="quest" />        </bean>        <bean id="quest" class="p1.SlayDragonQuest"></bean>                <bean id="minstrel" class="p1.Minstrel"></bean>                <aop:config>            <aop:aspect ref="minstrel">                <aop:pointcut id="embark" expression="execution(* *.embarkOnQuest(..))" />                <aop:before pointcut-ref="embark" method="singBeforeQuest"/>                <aop:after pointcut-ref="embark" method="singAfterQuest"/>            </aop:aspect>        </aop:config>              </beans>

package p1;/** * 探险 * */public interface IQuest {    void embark();}

package p1;public interface IKnight {    void embarkOnQuest();}

package p1;/** * 骑士 * */public class BraveKnight implements IKnight{    private IQuest quest;        public BraveKnight(IQuest quest){        this.quest=quest;            }    @Override    public void embarkOnQuest (){        quest.embark();    }    }

package p1;public class SlayDragonQuest implements IQuest{    @Override    public void embark() {        System.out.println("SlayDragonQuest的embark......");            }}

package p1;public class Minstrel {    public void singBeforeQuest(){        System.out.println("探险之前...");    }    public void singAfterQuest(){        System.out.println("探险之后......");    }    }

package p1;import org.springframework.context.applicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;public class Run {    public static void main(String[] args) {        ApplicationContext context=new ClassPathXmlApplicationContext("classpath*:knights.xml");        IKnight knight=(IKnight)context.getBean("knight");        knight.embarkOnQuest();    }}