<?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:context="http://www.springframework.org/schema/context"
    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">

    <!-- a service object; we will be profiling its methods -->
    <!-- 指定bean名称时可以使用id或者name来指定，主要区别是name可以用特殊字符（少用） -->
    <bean name="u" class="com.bebig.dao.impl.UserDAOImpl" />
    <!-- id也可以指定bean名称 -->
    <bean id="userService" class="com.bebig.service.UserService">
        <constructor-arg>
            <ref bean="u" />
        </constructor-arg>
    </bean>

</beans>