SpringAOP05引介增强IntroductionInterceptor
1、需要增强的类
package com.test.springadvicetype;import org.springframework.stereotype.Component;
import java.text.SimpleDateFormat;
import java.util.Date;
/**
* 服务员类
*/
@Component
public class Waiter {
/**
* 服务
* @param name
*/
public String serve(String name) {
System.out.println(name + ",您好,很高兴为您服务。");
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
return name + ",您好,现在是北京时间" + format.format(new Date());
}
/**
* 开车
* @param name
*/
public void driving(String name) {
throw new RuntimeException(name + ",您好,禁止酒后驾车!");
}
}
2、为Waiter增强新的类 Management
package com.test.springadvicetype.introductioninterceptor;public interface Management {
/**
* 管理
* @param name
*/
void manage(String name);
}
3、Management 的实现类,DelegatingIntroductionInterceptor已经实现了引介增强接口IntroductionInterceptor,直接继承。
package com.test.springadvicetype.introductioninterceptor;import org.springframework.aop.support.DelegatingIntroductionInterceptor;
/**
* 经理类
*/
public class Manager extends DelegatingIntroductionInterceptor implements Management {
@Override
public void manage(String name) {
System.out.println(name + ",您好,我是经理,负责管理服务员");
}
}
4、xml配置,spring-chapter3-springintroductioninterceptor.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:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<!-- 开启注解扫描 -->
<context:component-scan base-package="com.test.springadvicetype"/>
<bean id="waiter" class="com.test.springadvicetype.Waiter"/>
<bean id="manager2" class="com.test.springadvicetype.introductioninterceptor.Manager"/>
<bean id="waiterProxy" class="org.springframework.aop.framework.ProxyFactoryBean"
p:interfaces="com.test.springadvicetype.introductioninterceptor.Management"
p:interceptorNames="manager2"
p:target-ref = "waiter"
p:proxyTargetClass="true"/>
</beans>
5、测试代码
package com.test.springadvicetype.introductioninterceptor;import com.test.springadvicetype.Waiter;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
/**
* Spring引介增强测试
*/
public class SpringIntroductionInterceptorDemo {
public static void main(String[] args) {
System.out.println("Spring引介增强测试");
System.out.println("==========我是分割线==========");
ApplicationContext context = new ClassPathXmlApplicationContext("classpath:spring-chapter3-springintroductioninterceptor.xml");
Waiter waiterProxy = (Waiter) context.getBean("waiterProxy");
waiterProxy.serve("Michael");
System.out.println("==========我是分割线==========");
Management manager = (Management)waiterProxy;
manager.manage("Michael");
}
}
6、运行结果
Spring环绕增强测试==========我是分割线==========
前置增强执行了
Michael,您好,很高兴为您服务。
后置增强执行了
==========我是分割线==========
前置增强执行了
Tommy,您好,很高兴为您服务。
后置增强执行了
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