计划用一个月时间来学习Spring，在这里把自己的学习过程记录下来，方便想学习Spring的人，也为自己日后复习有个参考。以下通过一个简单的例子来先了解下Spring的用法。
(1)创建一个java工程，建立如下类：HelloBean
package com.ducklyl;
public class HelloBean {
private String helloWord;
public String getHelloWord() {
return helloWord;
}
public void setHelloWord(String helloWord) {
this.helloWord = helloWord;
}
}
(2)创建Spring配置文件：beans-config.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
<bean id="helloBean" class="com.ducklyl.HelloBean">
<property name="helloWord">
<value>Hello,ducklyl!</value>
</property>
</bean>
</beans>
(3)导入Spring所需的包：commons-logging.jar，spring.jar 。(日志包和Spring包)
包下载地址：
http://www.blogjava.net/Files/ducklyl/Spring.rar
(4)创建测试类：SpringDemo.java
package com.ducklyl;
import org.springframework.core.io.FileSystemResource;
import org.springframework.core.io.Resource;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.xml.*;
public class SpringDemo{
public static void main(String[] args)
{
//读取配置文件
Resource rs=new FileSystemResource("beans-config.xml");
//实例化Bean工厂
BeanFactory factory=new XmlBeanFactory(rs);
//获取id="helloBean"对象
HelloBean hello=(HelloBean)factory.getBean("helloBean");
//调用helloBean对象getHelloWord()方法
System.out.println(hello.getHelloWord());
}