将xml中所有属性名首字符改为小写（java+正则表达式）

public static StringreplaceAll(String xmlString){

    Pattern pattern = Pattern.compile("\\b([A-Z])(?=\\w*+=)");

    Matcher matcher = pattern.matcher(xmlString);

    matcher.reset();

    boolean result = matcher.find();

    if (result) {

        StringBuffer sb =new StringBuffer();

        do {

            matcher.appendReplacement(sb, matcher.group(0).toLowerCase());

            result = matcher.find();

        } while (result);

        matcher.appendTail(sb);

        return sb.toString();

    }

    return xmlString;

}