spring aop实例
编程技术 / houtizong 发布于 3年前 65
1.AdviceMethods.java
package com.bijian.study.spring.aop.schema;public class AdviceMethods {public void preGreeting() {System.out.println("--how are you!--");}} 2.beans.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"xsi:schemaLocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans-3.0.xsdhttp://www.springframework.org/schema/aophttp://www.springframework.org/schema/aop/spring-aop-3.0.xsd"><aop:config proxy-target-class="true"><aop:aspect ref="adviceMethods"><!-- 配置指定的一个类 --><!-- <aop:before pointcut="target(com.baobaotao.NaiveWaiter) or target(com.baobaotao.NaughtyWaiter) and execution(* greetTo(..))" method="preGreeting"/>--><!-- 配置指定的多个类 --><!-- <aop:before pointcut="target(com.baobaotao.NaiveWaiter) or target(com.baobaotao.NaughtyWaiter) and execution(* greetTo(..))" method="preGreeting"/>--><!-- 配置指定的接口，此接口的所有实现类都被切面化了 --><aop:before pointcut="target(com.bijian.study.spring.aop.Waiter) and execution(* greetTo(..))" method="preGreeting"/></aop:aspect></aop:config> <bean id="adviceMethods" class="com.bijian.study.spring.aop.schema.AdviceMethods"/><bean id="naiveWaiter" class="com.bijian.study.spring.aop.NaiveWaiter"/><bean id="naughtyWaiter" class="com.bijian.study.spring.aop.NaughtyWaiter"/></beans>
3.Waiter接口
package com.bijian.study.spring.aop;public interface Waiter {public void greetTo(String name);} 4.NaiveWaiter.java
package com.bijian.study.spring.aop;public class NaiveWaiter implements Waiter{@Overridepublic void greetTo(String name) {System.out.println("NavieWaiter:greet to " + name);}} 5.NaughtyWaiter.java
package com.bijian.study.spring.aop;public class NaughtyWaiter implements Waiter{@Overridepublic void greetTo(String name) {System.out.println("NaughtyWaiter:greet to " + name);}} 6.测试类Test.java
package com.bijian.study.spring.aop.schema;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;import com.bijian.study.spring.aop.Waiter;public class Test {public static void main(String[] args) {String configPath = "com/bijian/study/spring/aop/schema/beans.xml";ApplicationContext ctx = new ClassPathXmlApplicationContext(configPath);Waiter naiveWaiter = (Waiter)ctx.getBean("naiveWaiter");Waiter naughtyWaiter = (Waiter)ctx.getBean("naughtyWaiter");naiveWaiter.greetTo("John");naughtyWaiter.greetTo("Tom");}} 运行结果：
--how are you!--NavieWaiter:greet to John--how are you!--NaughtyWaiter:greet to Tom
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