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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
1 package com.bjsxt.dao.impl; 2 3 import java.util.List; 4 import java.util.Map; 5 import java.util.Set; 6 7 import com.bjsxt.dao.UserDAO; 8 import com.bjsxt.model.User; 9 10 public class UserDAOImpl implements UserDAO{11 12 private Set<String> sets;13 14 private List<String> lists;15 16 private Map<String,String> maps;17 18 public void save(User u) {19 System.out.println("a user saved!");20 }21 22 public Set<String> getSets() {23 return sets;24 }25 26 public void setSets(Set<String> sets) {27 this.sets = sets;28 }29 30 public List<String> getLists() {31 return lists;32 }33 34 public void setLists(List<String> lists) {35 this.lists = lists;36 }37 38 public Map<String, String> getMaps() {39 return maps;40 }41 42 public void setMaps(Map<String, String> maps) {43 this.maps = maps;44 }45 46 public String toString(){47 return "sets size:" + sets.size() + "| lists size:" + lists.size() + "| maps size:" + maps.size();48 }49 50 }
beans.xml
1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans xmlns="http://www.springframework.org/schema/beans" 3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 4 xsi:schemaLocation="http://www.springframework.org/schema/beans 5 http://www.springframework.org/schema/beans/spring-beans-2.5.xsd"> 6 7 <bean name="u" class="com.bjsxt.dao.impl.UserDAOImpl"> 8 <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="http://www.mamicode.com/1"></entry>24 <entry key="2" value="http://www.mamicode.com/2"></entry>25 <entry key="3" value="http://www.mamicode.com/3"></entry>26 <entry key="4" value="http://www.mamicode.com/4"></entry>27 </map>28 </property>29 </bean>30 31 <bean id="userService" class="com.bjsxt.service.UserService" scope="prototype">32 <!-- 33 <property name="userDAO">34 <ref bean="u"/>35 </property>36 -->37 <constructor-arg>38 <ref bean="u"/>39 </constructor-arg>40 </bean>41 </beans>
UserServiceTest
1 package com.bjsxt.service; 2 3 import org.junit.Test; 4 import org.springframework.context.ApplicationContext; 5 import org.springframework.context.support.ClassPathXmlApplicationContext; 6 7 import com.bjsxt.dao.UserDAO; 8 import com.bjsxt.dao.impl.UserDAOImpl; 9 10 public class UserServiceTest {11 12 @Test13 public void testAddUser() throws Exception {14 ApplicationContext ctx = new ClassPathXmlApplicationContext("beans.xml");//初始化ApplicationContext对象，加载配置文件15 16 UserDAO u1 = (UserDAOImpl)ctx.getBean("u");17 System.out.println(u1);18 }19 20 }
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
集合装配
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