xml--->dom4j完成sys-config.xml

	private XmlConfigReader() {
		SAXReader reader = new SAXReader();
		InputStream in = Thread.currentThread().getContextClassLoader().getResourceAsStream("sys-config.xml");
		try {
			Document doc = reader.read(in);
			
			//取得jdbc相关配置信息
			Element driverNameElt = (Element)doc.selectObject("/config/db-info/driver-name");
			Element urlElt = (Element)doc.selectObject("/config/db-info/url");
			Element userNameElt = (Element)doc.selectObject("/config/db-info/user-name");
			Element passwordElt = (Element)doc.selectObject("/config/db-info/password");
			
			//设置jdbc相关的配置
			jdbcConfig.setDriverName(driverNameElt.getStringValue());
			jdbcConfig.setUrl(urlElt.getStringValue());
			jdbcConfig.setUserName(userNameElt.getStringValue());
			jdbcConfig.setPassword(passwordElt.getStringValue());
			
			System.out.println("读取jdbcConfig-->>" + jdbcConfig);
		} catch (DocumentException e) {
			e.printStackTrace();
		}			
	}