Spring Bean的使用

参考文献：http://hehebendan.iteye.com/blog/649829

<bean id="DBAddress" class="com.mongodb.DBAddress">
        <constructor-arg index="0"><value type="java.lang.String">127.0.0.1</value></constructor-arg>
        <constructor-arg index="1"><value>27001</value></constructor-arg>
        <constructor-arg index="2"><value type="java.lang.String">mldn</value></constructor-arg>
</bean>
<bean id="MongoTim" class="com.mongodb.Mongo">
        <constructor-arg ref="DBAddress"></constructor-arg>
</bean>