spring 装配

@Autowired
@Qualifier("xiaohon")
autowired 依据type装配，如果有多个相同的type的bean需要使用qualifier指定具体的类

    <bean class="pojo.People" >
<!--        <qualifier value="xiohon"/>-->
        <property name="name" value="xiohon"></property>
        <qualifier value="xiaohon"></qualifier>
        <!-- inject any dependencies required by this bean -->
    </bean>
qualifier 的默认值是 id