正则表达式有关问题,替换所有数字,为非常长的数字,超难_J2SE

正则表达式问题,替换所有数字,为非常长的数字,超难
如:1-abc-w154e944
找到所有的连续数字,使之变长(例如6位,不足的前面补0)
执行结果:000001-abc-w000154e000944

用正则表达式实现

------解决方案--------------------

Java code

        Pattern pattern = Pattern.compile("(\\d+)");            Matcher matcher = pattern.matcher("1-abc-w154e944");            StringBuffer sbf = new StringBuffer();            while(matche.find()){                StringBuffer zero = new StringBuffer();                for(int i = (6 - matcher.group().length());i>0;i--){                    zero.append("0");                }                matcher.appendReplacement(sbf,zero+matcher.group());            }            matcher.appendTail(sbf);            System.out.println(sbf);
------解决方案--------------------
for example
Java codeString str = "1-abc-w154e944";Pattern p = Pattern.compile("\\d+");Matcher m = p.matcher(str);StringBuffer buf = new StringBuffer();while (m.find()) {    String s = String.format("000000%s", m.group());    m.appendReplacement(buf, s.substring(s.length()-6));}m.appendTail(buf);System.out.println(buf);