Spring-AOP 自动创建代理之AnnotationAwareAspectJAutoProxyCreator

导读

实例

package com.xgj.aop.spring.advisor.aspectJ.aspectJByConf;

public interface Waiter {

public void greetTo(String name);

public void serverTo(String name);
}

package com.xgj.aop.spring.advisor.aspectJ.aspectJByConf;

public class NaiveWaiter implements Waiter {

@Override
public void greetTo(String name) {
System.out.println("NaiveWaiter Greet To " + name);
}

@Override
public void serverTo(String name) {
System.out.println("NaiveWaiter Server To " + name);
}

}

package com.xgj.aop.spring.advisor.aspectJ.aspectJByConf;

import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;

/**
*
*
* @ClassName: PreGreetingAspect
*
* @Description: 切面类
*
* @author: Mr.Yang
*
* @date: 2017年8月24日 下午3:21:15
*/

// 通过@Aspect将PreGreetingAspect标注为一个切面
@Aspect
public class PreGreetingAspect {

// 定义切点和增强类型
@Before("execution(* greetTo(..))")
public void beforeGreeting() {// 增强的横切逻辑
System.out.println("How are you ?");
}
}

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> 
<!-- 通过配置使用@AspectJ -->

<!-- 目标Bean -->
<bean id="waiter" class="com.xgj.aop.spring.advisor.aspectJ.aspectJByConf.NaiveWaiter"/>
<!-- 使用了@AspectJ注解的切面类 -->
<bean class="com.xgj.aop.spring.advisor.aspectJ.aspectJByConf.PreGreetingAspect"/>
<!-- 自动代理创建器，自动将@AspectJ注解切面类织入目标Bean中 -->
<bean class="org.springframework.aop.aspectj.annotation.AnnotationAwareAspectJAutoProxyCreator"/>

</beans>

package com.xgj.aop.spring.advisor.aspectJ.aspectJByConf;

import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

/**
*
*
* @ClassName: PreGreetingAspectTest
*
* @Description:
*
* @author: Mr.Yang
*
* @date: 2017年8月24日 下午3:21:29
*/
public class PreGreetingAspectTest {

@Test
public void test() {
ApplicationContext ctx = new ClassPathXmlApplicationContext(
"classpath:com/xgj/aop/spring/advisor/aspectJ/aspectJByConf/conf-aspectJ.xml");

Waiter naiveWaiter = ctx.getBean("waiter", Waiter.class);

naiveWaiter.greetTo("XiaoGongJiang");
naiveWaiter.serverTo("XiaoGongJiang");
}
}

2017-08-24 17:41:16,210  INFO [main] (AbstractApplicationContext.java:583) - Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@24177697: startup date [Thu Aug 24 17:41:16 BOT 2017]; root of context hierarchy
2017-08-24 17:41:16,609  INFO [main] (XmlBeanDefinitionReader.java:317) - Loading XML bean definitions from class path resource [com/xgj/aop/spring/advisor/aspectJ/aspectJByConf/conf-aspectJ.xml]
How are you ?
NaiveWaiter Greet To XiaoGongJiang
NaiveWaiter Server To XiaoGongJiang