【注入方式】Spring的设值注入和构造注入

<?xml version="1.0" encoding="GBK"?>
<!-- Spring配置文件的根元素，使用spring-beans-4.0.xsd语义约束 -->
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns="http://www.springframework.org/schema/beans"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
	http://www.springframework.org/schema/beans/spring-beans-4.0.xsd">
	<bean id="chinese" class="org.crazyit.app.service.impl.Chinese">
		<property name="axe" ref="steelAxe"/>
        <property name="Stuname" value="zhangsan"/>
	</bean>	
	<bean id="stoneAxe" class="org.crazyit.app.service.impl.StoneAxe"/>
	<bean id="steelAxe" class="org.crazyit.app.service.impl.SteelAxe"/>
</beans>

<?xml version="1.0" encoding="GBK"?>
<!-- Spring配置文件的根元素，使用spring-beans-4.0.xsd语义约束 -->
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns="http://www.springframework.org/schema/beans"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
	http://www.springframework.org/schema/beans/spring-beans-4.0.xsd">	
	<bean id="chinese" class="org.crazyit.app.service.impl.Chinese">
		<constructor-arg ref="steelAxe" type="org.crazyit.app.service.Axe"/>
        <constructor-arg  value="zhangsan" type="String"/>
	</bean>
	<bean id="stoneAxe" class="org.crazyit.app.service.impl.StoneAxe"/>
	<bean id="steelAxe" class="org.crazyit.app.service.impl.SteelAxe"/>
</beans>