文章目录
- 导读
- 实例
导读
Spring-AOP 自动创建代理
Spring-AOP 自动创建代理之BeanNameAutoProxyCreator
Spring-AOP 自动创建代理之DefaultAdvisorAutoProxyCreator
Spring-AOP 自动创建代理之AnnotationAwareAspectJAutoProxyCreator
实例
代码已托管到Github—> https://github.com/yangshangwei/SpringMaster
准备工作参考 :http://blog.csdn.net/yangshangwei/article/details/77519375#准备工作
接口
代码语言:javascript复制package com.xgj.aop.spring.advisor.aspectJ.aspectJByConf;
public interface Waiter {
public void greetTo(String name);
public void serverTo(String name);
}
POJO
代码语言:javascript复制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);
}
}
切面POJO
代码语言:javascript复制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 ?");
}
}
配置文件
代码语言:javascript复制<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">
<bean id="waiter" class="com.xgj.aop.spring.advisor.aspectJ.aspectJByConf.NaiveWaiter"/>
<bean class="com.xgj.aop.spring.advisor.aspectJ.aspectJByConf.PreGreetingAspect"/>
<bean class="org.springframework.aop.aspectj.annotation.AnnotationAwareAspectJAutoProxyCreator"/>
beans>
单元测试
代码语言:javascript复制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");
}
}
运行结果:
代码语言:javascript复制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
可以看到greetTo被正确的织入了增强.