Sping--Id, Name
bean, id/name 都可以
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd"> <bean name="u" class="com.bjsxt.dao.impl.UserDAOImpl"> </bean> <bean id="userService" class="com.bjsxt.service.UserService"> <!-- <property name="userDAO" ref="u" /> --> <constructor-arg> <ref bean="u"/> </constructor-arg> </bean> </beans>