Spring 自學系列之IOC-7【collection集合注入】

spring注入bean的時候可以為集合指派，諸如list、map、set等，但是很少用到，了解即可。

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
           http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">

  <bean name="userDAO" class="com.bjsxt.dao.impl.UserDAOImpl">
  	<property name="sets">
  		<set>
  			<value>1</value>
  			<value>2</value>
  		</set>
  	</property>
  	<property name="lists">
  		<list>
  			<value>1</value>
  			<value>2</value>
  			<value>3</value>
  		</list>
  	</property>
  	<property name="maps">
  		<map>
  			<entry key="1" value="1"></entry>
  			<entry key="2" value="2"></entry>
  			<entry key="3" value="3"></entry>
  			<entry key="4" value="4"></entry>
  		</map>
  	</property>
  </bean>

  <bean id="userService" class="com.bjsxt.service.UserService">
  <!-- 
  	<property name="userDAO">
  		<ref bean="userDAO"/>
  	</property>
  	 -->
  	 <constructor-arg>
  	 	<ref bean="userDAO"/>
  	 </constructor-arg>
  </bean>


</beans>