加载spring.XML配置文件 这快不是吧很清楚

    ClassPathXmlApplicationContext Beanfactory=new ClassPathXmlApplicationContext("spring-ioc.xml");
        /*ApplicationContext ctx = new FileSystemXmlApplicationContext("classpath:spring-ioc.xml");*/
        OneInterface of=(OneInterface) Beanfactory.getBean("oneInterface");
        System.out.println(of.say("我输入的参数"));
    }    一直报错