正则表达式在Java中验证IP

importjava.util.regex.Matcher;importjava.util.regex.Pattern;/*** JavaString

* com.xuyanghui.regularexPRession

* 15-10-24

* 下午2:31

* YANGHUI XU*/publicclassRegular {publicstaticvoidmain(String[] args) {

Stringip= "192.168.1.108";

String patternString= "(([0,1]?\\d?\\d|2[0-4]\\d|25[0-5])\\.){3}([0,1]?\\d?\\d|2[0-4]\\d|25[0-5])";

Pattern pattern=Pattern.compile(patternString);

Matcher matcher=pattern.matcher(ip);

System.out.println(matcher.matches());

}

}