java匹配IP正则表达式

/** * 判断是否为合法IP * @return the ip */ public boolean isboolIp(String ipAddress) { String ip = "([1-9]|[1-9]//d|1//d{2}|2[0-4]//d|25[0-5])(//.(//d|[1-9]//d|1//d{2}|2[0-4]//d|25[0-5])){3}"; Pattern pattern = Pattern.compile(ip); Matcher matcher = pattern.matcher(ipAddress); return matcher.matches(); }