集合装配

就是类中的属性是集合，对这种属性进行装配，用的更少。配置例子如下：

我的例子：

　　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{

    private Set<String> sets;
    
    private List<String> lists;
    
    private Map<String,String> maps;
    
    public void save(User u) {
        System.out.println("a user saved!");
    }

    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 String toString(){
        return "sets size:" + sets.size() + "| lists size:" + lists.size() + "| maps size:" + maps.size();
    }

}

　　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="u" class="com.bjsxt.dao.impl.UserDAOImpl">
      <property name="sets">
 9           <set>
10               <value>1</value>
11               <value>2</value>
12           </set>
13       </property>
14       <property name="lists">
15           <list>
16               <value>1</value>
17               <value>2</value>
18               <value>3</value>
19           </list>
20       </property>
21       <property name="maps">
22           <map>
23               <entry key="1" value="1"></entry>
24               <entry key="2" value="2"></entry>
25               <entry key="3" value="3"></entry>
26               <entry key="4" value="4"></entry>
27           </map>
28       </property>
  </bean>

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

　　UserServiceTest

package com.bjsxt.service;

import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.bjsxt.dao.UserDAO;
import com.bjsxt.dao.impl.UserDAOImpl;

public class UserServiceTest {

    @Test
    public void testAddUser() throws Exception {
        ApplicationContext ctx = new ClassPathXmlApplicationContext("beans.xml");//初始化ApplicationContext对象，加载配置文件
        
        UserDAO u1 = (UserDAOImpl)ctx.getBean("u");
        System.out.println(u1);
    }

}

代码链接: http://pan.baidu.com/s/1o78eG22 密码: xej7

jar包链接: http://pan.baidu.com/s/1qYRTGEo 密码: fejx