public static void loadProps(String propertiesUrl) {    props = new Properties();    InputStream in = null;    try {        in =new BufferedInputStream(new FileInputStream(propertiesUrl));        props.load(in);    } catch (FileNotFoundException e) {        logger.error("jdbc.properties文件未找到");    } catch (IOException e) {        logger.error("出现IOException");    } finally {        try {            if (null != in) {                in.close();            }        } catch (IOException e) {            logger.error("jdbc.properties文件流关闭出现异常");        }    }    logger.debug("加载properties文件内容完成...........");    logger.debug("properties文件内容：" + props);}public static String getProperty(String key) {    if (null == props) {        logger.debug("加载配置文件出错");    }    return props.getProperty(key);}