1 package com.smart.aop.advice.pointcut; 2  3 public class Waiter { 4  5     public void greetTo(String name) { 6         System.out.println("Waiter greet to " + name + " ..."); 7     } 8  9     public void serverTo(String name) {10         System.out.println("waiter server to " + name + " ...");11     }12 }

 1 package com.smart.aop.advice.aspectj; 2  3 import org.aspectj.lang.annotation.Aspect; 4 import org.aspectj.lang.annotation.Before; 5  6 @Aspect 7 public class PreGreetingAspect { 8      9     @Before ("execution(* greetTo(..))") //定义连接点（连接点方位信息--前置增强, 切点--所有目标类的greetTo方法--可带任意的入参和返回值）10     public void beforeGreeting() {    11         System.out.println("How are you!"); //方法体为增强逻辑12     }13 }

 1 package com.smart.aop.advice.aspectj; 2  3 import org.springframework.aop.aspectj.annotation.AspectJProxyFactory; 4 import org.testng.annotations.Test; 5 import com.smart.aop.advice.pointcut.Waiter; 6  7  8 public class AspectJProxyTest { 9 10     @Test11     public void beforeTest() {12         13         Waiter waiter = new Waiter();14         AspectJProxyFactory pFactory = new AspectJProxyFactory();15         16         pFactory.setTarget(waiter); //设置目标实例17         pFactory.addAspect(PreGreetingAspect.class); //添加切面类18         19         Waiter proxyWaiter = pFactory.getProxy(); //生成织入代理的代理对象20         21         /**22          * 由切面类中的切点信息execution(* greetTo(..))23          * 可知代理对象proxyWaiter的greetTo方法织入了切面类所定义的增强逻辑24          */25         proxyWaiter.greetTo("Jack"); 26         proxyWaiter.serverTo("Jack");27     }28 }
输出结果：

How are you!
Waiter greet to Jack ...

waiter server to Jack ...

1     <!-- 匹配切点的目标bean -->2     <bean id="waiter" class="com.smart.aop.advice.pointcut.Waiter" />3     4     <!-- 使用@AspectJ标注的切面类 -->5     <bean class="com.smart.aop.advice.aspectj.PreGreetingAspect" />6     7     <!-- 自动代理创建器，能够将@AspectJ标注的切面自动织入到目标bean中 -->8     <bean class="org.springframework.aop.aspectj.annotation.AnnotationAwareAspectJAutoProxyCreator" />

 1 package com.smart.aop.advice.aspectj; 2  3 import org.springframework.context.ApplicationContext; 4 import org.springframework.context.support.ClassPathXmlApplicationContext; 5 import org.testng.annotations.Test; 6  7 import com.smart.aop.advice.pointcut.Waiter; 8  9 public class SpringAspectJTest {10 11     12     @Test13     public void beforeTest() {14         15         16         ApplicationContext ctx = new ClassPathXmlApplicationContext("classpath:com/smart/aop/advice/aspectj/beans-aspectj.xml");17         Waiter waiter = ctx.getBean("waiter", Waiter.class);18         19         waiter.greetTo("Jack");20         waiter.serverTo("Jack");21     }22 }