加载applicationContext文件的七种方法

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/** 1 把applicationContext.xml放到classpath目录下*/
//     Resource resource = new ClassPathResource("applicationContext.xml");
//     BeanFactory factory = new XmlBeanFactory(resource);
//     JdbcTemplate jt = (JdbcTemplate)factory.getBean("jdbcTemplate");
     /** 2*/
//  WebApplicationContext wac = WebApplicationContextUtils.getRequiredWebApplicationContext(ctx);
//     JdbcTemplate jt = (JdbcTemplate) wac.getBean("jdbcTemplate");
     /** 3*/
//     ApplicationContext ac = new FileSystemXmlApplicationContext("D://apache-tomcat-6.0.29//webapps//jf_shop//WEB-INF//applicationContext.xml");
//     JdbcTemplate jt = (JdbcTemplate) ac.getBean("jdbcTemplate");
     /** 4*/
//     WebApplicationContext wac = (WebApplicationContext)ctx.getAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE);
//     JdbcTemplate jt = (JdbcTemplate) wac.getBean("jdbcTemplate");
     /** 5把applicationContext.xml放到classpath目录下*/
//     ClassPathXmlApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext_ty.xml");
     ClassPathXmlApplicationContext ac = new ClassPathXmlApplicationContext(new String[] {"applicationContext_ty.xml","applicationContext.xml","applicationContext_zj.xml","applicationContext_mtb.xml","applicationContext_wll.xml"});
        BeanFactory factory = ac;
     JdbcTemplate jt = (JdbcTemplate)factory.getBean("jdbcTemplate");
//        dao =   (PingPaiDao)factory.getBean("dao");
  /** 6 必须继承MultiActionController类*/
//  JdbcTemplate jt = (JdbcTemplate) getApplicationContext().getBean("jdbcTemplate");
  /** 7*/
//     XmlWebApplicationContext xctx = new XmlWebApplicationContext();
//     xctx.setConfigLocations(new String[] {"/WEB-INF/applicationContext.xml"});
//     xctx.setServletContext(ctx);
//     xctx.refresh();
     /** 8*/
//     JdbcTemplate jt = (JdbcTemplate)xctx.getBean("jdbcTemplate");