ClassPathResource s=new ClassPathResource("beans.xml")
XmlBeanFactory x=new XmlBeanFactory(s);
//根路径指定->class文件夹开始找beans.xml

ClassPathXmlApplicationContext cx=new ClassPathXmlApplicationContext("beans.xml");
//根路径指定->class文件夹开始找beans.xml

ApplicationContext c=new FileSystemXmlApplicationContext("beans.xml");
//根路径指定->项目根路径 开始找beans.xml