spring学习实例之装手动装配自动装配
来学习下装配相关：
手动装配：手动的将bean中所关联的其他bean装配进去。使用以下方法：
<property><ref bean=""></property>
自动装配：使用autowire关键字声明bean的自动装配方式。其可选值为byName、byType、constructor等。

包结构：


源代码：
ItemDao.java

package dao;public interface ItemDao {void update();}

ItemDaoImpl.java

package dao;public class ItemDaoImpl implements ItemDao{public void update(){System.out.println("update item .");}}

OrderDao.java

package dao;public interface OrderDao {void save();}

OrderDaoImpl.java

package dao;public class OrderDaoImpl implements OrderDao{public void save(){System.out.println("save order .");}}

StoreService.java

package service;public interface StoreService {void submitOrder();}

StoreServiceImpl.java

package service;import dao.ItemDao;import dao.OrderDao;public class StoreServiceImpl implements StoreService {public ItemDao itemDao;public OrderDao orderDao;public void setItemDao(ItemDao itemDao) {this.itemDao = itemDao;}public void setOrderDao(OrderDao orderDao) {this.orderDao = orderDao;}public void submitOrder() {orderDao.save();itemDao.update();}}

手动装配配置文件：

<?xml version="1.0" encoding="UTF-8"?><beansxmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:p="http://www.springframework.org/schema/p"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd"><bean id="orderDao" name="code"><?xml version="1.0" encoding="UTF-8"?><beans default-autowire="byType"xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:p="http://www.springframework.org/schema/p"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd"><bean autowire="byName"></bean><bean autowire="byName"></bean>这行则指明了该bean的自动中配为byName(根据名字)。

测试类Test.java
package test;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;import service.StoreService;public class Test {public static void main(String[]args){//加载手动装配配置文件ApplicationContext ac=new ClassPathXmlApplicationContext("ApplicationContext.xml");StoreService storeService=(StoreService)ac.getBean("storeService");storeService.submitOrder();//加载自动装配配置文件ApplicationContext ac_autowire=new ClassPathXmlApplicationContext("ApplicationContext_autowire.xml");StoreService storeService_autowire=(StoreService)ac.getBean("storeService");storeService_autowire.submitOrder();}}