日期:2014-05-17 浏览次数:20956 次
package com.aop.service;
public interface MyService {
public void sayHello(String word);
}package com.aop.service;
public class MyServiceImpl implements MyService {
@Override
public void sayHello(String word) {
System.out.println("Say :" + word);
}
}package com.aop.aspect;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
//切面声明
@Aspect
public class MyAspectJ {
//切点声明
@Pointcut(value = "execution(* com.aop.service..*.*(..))&& args(param)", argNames = "param")
public void MyPointCut(String param) {
}
//前置通知声明
@Before(value = "MyPointCut(param)", argNames = "param")
public void beforeAdvice(String param) {
System.out.println("--before advice,param:" + param);
}
}<?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/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">
<!-- 开启 @AspectJ 风格的切面声明 -->
<aop:aspectj-autoproxy />
<!-- 接口实现业务类 -->
<bean id="MyService" class="com.aop.service.MyServiceImpl" />
<!-- 切面定义类,包含切点、切面、通知等相关配置 -->
<bean id="MyAspectJ" class="com.aop.aspect.MyAspectJ" />
</beans> package com.spring.test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.FileSystemXmlApplicationContext;
import com.aop.service.MyService;
public class TestAop {
public static void main(String[] args) {
ApplicationContext context = new FileSystemXmlApplicationContext("aspectJAop.xml");
MyService service = (MyService) context.getBean("MyService");
service.sayHello("Spring aop");
}
}--before advice,param:Spring aop Say :Spring aop