Spring的自动注入

<?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:p="http://www.springframework.org/schema/p" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd"> <bean id="ink2" class="hr.BlackInk"></bean> <bean id="ink" class="hr.ColorInk"> </bean> <bean id="page" class="hr.B5Page"></bean> <!-- autowire="byName" 根据名称自动 注入 --> <!--autowire="byType" 根据属性的类型自动找到相应的类 注入 --> <bean id="printer" class="hr.Printer" autowire="byType"> <!-- <property name="ink" ref="ink2"></property> <property name="page" ref="page"></property> --> </bean> </beans>