import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Example {
public static void main(String[] args) {
final String regex = "^(?<protocol>[a-z]{2,6}):\\/\\/((?<subdomain>[a-z0-9]{0,10}\\.{1}){0,2}(?<domain>[a-z\\-0-9]{1,30}){1}\\.{1}(?<extension>[a-z]{1,10}){1}|(?<ipaddress>([0-9\\.]{2,5}){3,8}))(?<port>\\:[0-9]{1,6}){0,1}\\/?(?<filepath>(?<path>[a-z0-9\\-_%]{1,20}\\/{1}){0,}(?<filename>[a-z0-9\\-_]{1,20}\\.{1}[a-z0-9]{2,6}){0,1}){0,1}(?<route>(\\/{1}[a-z_0-9\\-_]{1,20}){1,}){0,10}(?<query>\\?{1}[a-z0-9%\\+_\\-&=\\.@\\!,\\:]{0,200}){0,1}$";
final String string = "";
final Pattern pattern = Pattern.compile(regex, Pattern.CASE_INSENSITIVE | Pattern.MULTILINE);
final Matcher matcher = pattern.matcher(string);
while (matcher.find()) {
System.out.println("Full match: " + matcher.group(0));
for (int i = 1; i <= matcher.groupCount(); i++) {
System.out.println("Group " + i + ": " + matcher.group(i));
}
}
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Java, please visit: https://docs.oracle.com/javase/7/docs/api/java/util/regex/Pattern.html