spring中ref属性与<ref/>标签

在bean的内部引用另一个bean对象：

　　使用ref标签对其进行引用： <ref bean="viewResolver2"/>

 

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<bean id="viewResolver"         class="org.springframework.web.servlet.view.InternalResourceViewResolver">         <property name="prefix" value="/" />         <property name="suffix" value=".jsp" />         <property name="order" value="2"/> </bean>

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<bean class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">     <property name="viewResolvers">         <list>             <bean class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver"/>                <!-- 引用外部id为viewResolver的bean -->             <ref bean="viewResolver"/>         </list>     </property>  </bean>

　　

ref属性：用来给一个对象的属性设置值

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使用<ref bean="viewResolver"/> bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> <!-- 在spring框架加载时创建 -->  <bean id="borrowDao" class="dao.impl.BorrowDao" primary="true"  lazy-init="true">   <property name="sessionFactory" ref="sessionFactory"></property>  </bean>

　　

ref标签：用来引用另一个bean：

<ref bean="viewResolver"/>，在spring容器中群钊id为viewResolver的bean对象