Spring再接触 集合注入

beans.xml

<?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></value>
<value></value>
</set>
</property>
<property name="lists">
<list>
<value></value>
<value></value>
<value></value>
</list>
</property>
<property name="maps">
<map>
<entry key="" value=""></entry>
<entry key="" value=""></entry>
<entry key="" value=""></entry>
<entry key="" value=""></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>

userDAOimpl

package com.bjsxt.dao.impl;

import java.util.List;
import java.util.Map;
import java.util.Set; import com.bjsxt.dao.UserDAO;
import com.bjsxt.model.User; public class UserDAOImpl implements UserDAO {
/* (non-Javadoc)
* @see com.bjsxt.dao.UserDAO#save(com.bjsxt.model.User)
*/
private Set<String> sets;
private List<String> lists;
private Map<String , String> maps; public Set<String> getSets() {
return sets;
} public void setSets(Set<String> sets) {
this.sets = sets;
} public List<String> getLists() {
return lists;
} public void setLists(List<String> lists) {
this.lists = lists;
} public Map<String, String> getMaps() {
return maps;
} public void setMaps(Map<String, String> maps) {
this.maps = maps;
} public UserDAOImpl() {
} public void save(User user) {
System.out.println("user saved!");
} @Override
public String toString() {
return "sets size:" + sets.size() + "| lists size:" + lists.size() + "| maps size:" + maps.size() ;
} }

Test

@Test
public void testAdd() throws Exception {
ApplicationContext ctx = new ClassPathXmlApplicationContext("beans.xml");
UserDAO u1 = (UserDAO)ctx.getBean("userDAO");
System.out.println(u1);
}
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