Spring之AOP XML方式

xml方式和Annotation方式差不多，只需改动代理类，和配置文件即可。

package aspect;

import org.aspectj.lang.annotation.After;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.AfterThrowing;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;

public class UserDaoAspect {

    public void startSay(){ //告知在xml文件中配置为前置通知
        System.out.println("Good Morning");
    }
    public void endSay(){   //告知在xml文件中配置为后置通知
        System.out.println("bye bye");
    }
}

applicationContext.xml

<?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:aop="http://www.springframework.org/schema/aop"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
    http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd">

    <bean id="userDao" class="dao.UserDaoImpl" />

    <bean id="aspectj" class="aspect.UserDaoAspect"></bean>

    <aop:config>
       <aop:aspect id="myaspectj" ref="aspectj">
          <aop:pointcut expression="execution(* dao..*.*(..))" id="mypointcut"/>
          <aop:before method="startSay" pointcut-ref="mypointcut"/>
          <aop:after method="endSay" pointcut-ref="mypointcut"/> 
       </aop:aspect>
    </aop:config>
</beans>

测试类

package test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import dao.UserDao;
import dao.UserDaoImpl;

public class Test {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        ApplicationContext context=new ClassPathXmlApplicationContext("applicationContext.xml");
        UserDao dao=(UserDao)context.getBean("userDao");
        dao.addUser();
    }

}

两种方式效果是一样的

摘自 itmyhome的专栏

补充：软件开发 , 其他 ,