使用ServletContext读取资源文件

 ServletContext context = request.getServletContext();
        String path = context.getRealPath("/WEB-INF/classes/jdbc.properties");
        System.out.println("path"+path);
        Properties pro = new Properties();
        pro.load(new FileReader(path));
        System.out.println("jdbc.url:"+pro.get("jdbc.url"));