2.1 容器的基本实现

　　2.1 案例:

 1     static final String XML_PATH = "applicationContxt.xml";
 2 
 3     @Test
 4     public void testXMLBeanFactory() {
 5         try {
 6             Resource resource = new ClassPathResource(XML_PATH);
 7             XmlBeanFactory beanFactory = new XmlBeanFactory(resource);
 8             Car car = (Car) beanFactory.getBean("car");
 9             System.out.println(car);
10         }
11         catch (Exception e) {
12             e.printStackTrace();
13         }
14     }

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 http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">
5 
6     <bean id="car" class="entity.CarFactoryBean">
7         <property name="carInfo" value="超级跑车,400,2000000" />
8     </bean>
9 </beans>

2.2 功能分析:

　　上面这段代码完成的功能无非是以下几点;

　　(1) 读取配置文件;

　　(2) 根据XMl中的配置找到对应的类的配置,并实例化;

　　(3) 把它打印出来