Spring 3.x企业应用开发实战(12)-基于Schema配置剖面

Spring 3.x企业应用开发实战(12)----基于Schema配置切面

基于Schema配置切面

如果项目不能使用JDK 5.0,那么就无法使用基于@AspectJ注解的切面了。

一个简单的切面配置

<?xml version="1.0" encoding="UTF-8"?>
<!-- 引用Spring的多个Schema空间的格式 -->
<beans	
	xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:p="http://www.springframework.org/schema/p"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:aop="http://www.springframework.org/schema/aop" 
	xmlns:tx="http://www.springframework.org/schema/tx"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
						http://www.springframework.org/schema/beans/spring-beans-3.0.xsd 
						http://www.springframework.org/schema/context 
						http://www.springframework.org/schema/context/spring-context-3.0.xsd
						http://www.springframework.org/schema/tx 
       					http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
       					http://www.springframework.org/schema/aop
       					http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">
       					
    <aop:config proxy-target-class="true">
    	<aop:aspect ref="adviceMethods"><!-- #1、引用#4處的adviceMethods -->
    		<aop:before method="preGreeting" pointcut="target(com.smart.schema.NaiveWaiter) and execution (* greetTo(..))"/><!-- 聲明切點表達式 -->
    		<!-- 增強方法使用adviceMethods Bean中的preGreeting方法 -->
    	</aop:aspect>
    </aop:config>
    
    <bean id="adviceMethods" class="com.smart.schema.AdviceMethods"/><!-- #4、增強方法所在的Bean -->
    <bean id="naiveWaiter" class="com.smart.schema.NaiveWaiter"/>
    <bean id="naughtWaiter" class="com.smart.schema.NaiveWaiter"/>
</beans>

NaiveWaiter.java

package com.smart.schema;

import com.smart.aspectj.Waiter;

public class NaiveWaiter implements Waiter
{
	@Override
	public void greetTo(String name) 
	{
		System.out.println("Greet to "+name+"...");
	}

	@Override
	public void serveTo(String name) 
	{
		System.out.println("Serving to "+name+"...");
	}
}

package com.smart.schema;


public class AdviceMethods 
{
public void preGreeting()
{
System.out.println("--How are you!--");
}
}