/**	 * 正则表达式对大写html标签进行转换成小写	 * */	public static String tagNameToLowerCase(String html){		StringBuffer result = new StringBuffer();		Pattern pattern = Pattern.compile("<([^>\\s]+)");		Matcher m = pattern.matcher(html);		while (m.find()) {			m.appendReplacement(result, "<" + m.group(1).toLowerCase());		}		m.appendTail(result);		return result.toString();	}