Spring入门Blog[二、Ioc控制反转集合注入和Scope]

Scope：Singleton：每次拿到的bean都是一个beanPrototype：每次拿到的都是一个新的对象。在Action层推荐用Prototype在xml的bean配置中指定Scope属性即可：如下代码<bean id="userService" class="com.spring.service.UserServiceImpl" scope="prototype"><property name="userDao" ref="userDao"></property></bean>集合注入的案例：List、Set和Map          <property name="someList">               <list>                       <value>a list element followed by a reference</value>                       <ref bean="myDataSource"/>               </list>         </property>         <property name="adminEmails">                  <props>                          <prop key="administrator">[e-mail]</prop>                         <prop key="support">[e-mail]</prop>                  </props>         </property>          <property name="someMap">                     <map>                             <entry>                                     <key><value>yup an entry</value></key>                                             <value>just some string</value>                               </entry>                               <entry>                                       <key><value>yup a ref</value></key>                                             <ref bean="myDataSource">                               </entry>                      </map>          </property>