spring BeanFactory加载xml配置文件示例
项目目录结构如下:
HelloWorld.java
1 package com.thief.demo; 2 3 public class HelloWorld { 4 5 public void sayHello() { 6 System.out.println("hello world!"); 7 } 8 9 }
helloworld-config.xml
1 <?xml version="1.0" encoding="UTF-8"?> 2 <!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd" > 3 <beans> 4 <bean id="helloworld" class="com.thief.demo.HelloWorld"/> 5 </beans>
Test.java
1 package com.thief.demo; 2 3 import org.springframework.beans.factory.BeanFactory; 4 import org.springframework.beans.factory.support.DefaultListableBeanFactory; 5 import org.springframework.beans.factory.xml.XmlBeanDefinitionReader; 6 7 public class Test { 8 9 public static void main(String[] args) { 10 11 DefaultListableBeanFactory beanRegistry = new DefaultListableBeanFactory(); 12 XmlBeanDefinitionReader reader = new XmlBeanDefinitionReader(beanRegistry); 13 reader.loadBeanDefinitions("classpath:com/thief/demo/helloworld-config.xml"); 14 BeanFactory container = (BeanFactory)beanRegistry; 15 16 HelloWorld helloworld = (HelloWorld)container.getBean("helloworld"); 17 helloworld.sayHello(); 18 19 } 20 21 }