【Spring-AOP-学习笔记-3】@Before前向增强处理简单示例

项目结构

程序代码

HelloImpl.java

WorldImpl.java

定义切面类

package org.crazyit.app.aspect;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
// 定义一个切面
@Aspect
public class AuthAspect
{
	// 匹配org.crazyit.app.service.impl包下所有类的、
	// 所有方法的执行作为切入点
	@Before("execution(* org.crazyit.app.service.impl.*.*(..))")
	public void authority()
	{
		System.out.println("模拟执行权限检查");
	}
	
	
}

配置

<?xml version="1.0" encoding="GBK"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:aop="http://www.springframework.org/schema/aop"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
	http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
	http://www.springframework.org/schema/context
	http://www.springframework.org/schema/context/spring-context-4.0.xsd
	http://www.springframework.org/schema/aop
	http://www.springframework.org/schema/aop/spring-aop-4.0.xsd">
	<!-- 指定自动搜索Bean组件、自动搜索切面类 -->
	<context:component-scan base-package="org.crazyit.app.service
		,org.crazyit.app.aspect">
		<context:include-filter type="annotation"
			expression="org.aspectj.lang.annotation.Aspect"/>
	</context:component-scan>
	<!-- 启动@AspectJ支持 -->
	<aop:aspectj-autoproxy/>
</beans>