set,list,Map,数组的注入

bean car和bean customer  对应关系：一个customer对应多个car

在bean customer中除了定义Car caｒ　外还要定义　
　　 List carlist;
Car[] cars;
 Set carset;
Map carmap;的ｇｅｔ／ｓｅｔ方法

在ｂｅａｎ．ｘｍｌ中一个ｂｅａｎ对应一个＜ｂｅａｎ＞＜／ｂｅａｎ＞所以有ｃｕｓｔｏｍｅｒ和ｃａｒ两个

在其中各自写上对应的＜ｐｒｏｐｅｒｔｙ＞　ｐｒｏｐｅｒｔｙ　的ｎａｍｅ是什么取决于ｂｅａｎ中的属性是什么

在是ｓｅｔ／ｌｉｓｔ／数组时，＜ｌｉｓｔ＞等中的＜ｒｅｆ　ｂｅａｎ＝＂＂＞引出

ＭＡＰ：

 <property name="carmap">

         <map>           <entry key="1">           <ref bean="car1"/>           </entry>           <entry key="2">            <ref bean="car2"/>            </entry>         </map>         </property>

准则：注入方式为：建一个ｂｅａｎ配置一个bean， 配置的property属性名为建的bean中的属性名，配置set等内值时可以运用内部对象的方式，但是这样外部不能引用！在测试类中通过建bean的对象引用对应的get方法得到值。

<bean id="customer" class="spring.Customer">        <property name="name" value="zhangsan"/>        <property name="salary" value="4000"/>        <property name="carlist">          <list>            <ref bean="car1"/>            <ref bean="car2"/>                          <bean  class="spring.Car">                    <property name="brand" value="mazida"/>                    <property name="cost" value="180000"/>             </bean>           </list>          </property>       

map.get("1")注意有引号   

1.--User类
package org.stelcomtech;
import java.util.List;import java.util.Map;import java.util.Set;
public class User { private String username;
 private int age;
 private Home myHome;
 private Home[] homes;
 private List homesList;
 private Set homesSet;
 private Map homesMap;
 public Home[] getHomes() {  return homes; }
 public void setHomes(Home[] homes) {  this.homes = homes; }
 public List getHomesList() {  return homesList; }
 public void setHomesList(List homesList) {  this.homesList = homesList; }
 public Map getHomesMap() {  return homesMap; }
 public void setHomesMap(Map homesMap) {  this.homesMap = homesMap; }
 public Set getHomesSet() {  return homesSet; }
 public void setHomesSet(Set homesSet) {  this.homesSet = homesSet; }
 public Home getMyHome() {  return myHome; }
 public void setMyHome(Home myHome) {  this.myHome = myHome; }
 public int getAge() {  return age; }
 public void setAge(int age) {  this.age = age; }
 public String getUsername() {  return username; }
 public void setUsername(String username) {  this.username = username; }
}
2.---Home类
package org.stelcomtech;
public class Home { private String homeAddr;
 public String getHomeAddr() {  return homeAddr; }
 public void setHomeAddr(String homeAddr) {  this.homeAddr = homeAddr; }
}
3.--测试类 MainTest
package org.stelcomtech;
import java.util.Iterator;import java.util.List;import java.util.Map;import java.util.Set;
import org.springframework.context.ApplicationContext;import org.springframework.context.support.FileSystemXmlApplicationContext;
public class MainTest { public static void main(String[]args){  ApplicationContext ac=new FileSystemXmlApplicationContext("org/stelcomtech/applicationContext.xml");  User user=(User)ac.getBean("userid");  Home[] homes=user.getHomes();  System.out.println("************数组注入***************");  for(int i=0;i<homes.length;i++){   System.out.println("家庭地址："+homes[i].getHomeAddr());  }  System.out.println("************List注入********************");  List list=user.getHomesList();  Iterator ir=list.iterator();  while(ir.hasNext()){   //Home home1=(Home)ir.next();   System.out.println("家庭地址："+ir.next().toString());  }  System.out.println("***********Set注入******************");  Set set=user.getHomesSet();  Iterator ir1=set.iterator();  while(ir1.hasNext()){   System.out.println("家庭地址："+ir1.next().toString());  }  System.out.println("************Map注入**************");  Map map=user.getHomesMap();     Home home11=(Home)map.get("1");   System.out.println("家庭地址："+home11.getHomeAddr().toString());   Home home111=(Home)map.get("2");   System.out.println("家庭地址："+home111.getHomeAddr().toString());   }
 }
 
4.配置文件 applicationContext.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/beanshttp://www.springframework.org/schema/beans/spring-beans-2.0.xsd">
 <bean id="myHome1" class="org.stelcomtech.Home" abstract="false"  lazy-init="default" dependency-check="default">  <property name="homeAddr">   <value>wuhan</value>  </property> </bean> <bean id="myHome2" class="org.stelcomtech.Home" abstract="false"  lazy-init="default" dependency-check="default">  <property name="homeAddr">   <value>shanghai</value>  </property> </bean>
    <!-- autowire 选择 byName时，按照Bean id 是否和类中的属性名来查找  -->    <!-- autowire 选择 byType时，按照 类的类型 来查找 --> <bean id="userid" class="org.stelcomtech.User" abstract="false"    lazy-init="default" dependency-check="default">  <property name="username">   <value>haiyang</value>  </property>  <property name="age">   <value>22</value>  </property>   <!-- 数组注入方式 -->  <property name="homes">  <list>   <ref bean="myHome1" />   <ref bean="myHome2" />  </list>  </property>  <!-- List注入方式 -->   <property name="homesList">   <list>    <ref bean="myHome1" />    <ref bean="myHome2" />    <value>haha</value>       </list>  </property>  <!-- Set注入方式 -->   <property name="homesSet">   <set>    <value>hello</value>    <ref bean="myHome2" />    <ref bean="myHome1" />   </set>  </property>  <!-- Map注入方式 -->  <property name="homesMap">   <map>    <entry key="1">     <ref bean="myHome1" />    </entry>    <entry key="2">    <ref bean="myHome2" />    </entry>   </map>  </property>
</bean> </beans>
 
5.运行结果
log4j:WARN No appenders could be found for logger (org.springframework.context.support.FileSystemXmlApplicationContext).log4j:WARN Please initialize the log4j system properly.************数组注入***************家庭地址：wuhan家庭地址：shanghai************List注入********************家庭地址：org.stelcomtech.Home@1d7ad1c家庭地址：org.stelcomtech.Home@65a77f家庭地址：haha***********Set注入******************家庭地址：hello家庭地址：org.stelcomtech.Home@65a77f家庭地址：org.stelcomtech.Home@1d7ad1c************Map注入**************家庭地址：wuhan家庭地址：shanghai