This is a simple Java Example which uses Apache Commons Net library to pull all Whois data.
The WhoisClient class implements the client side of the Internet Whois Protocol defined in RFC 954. To query a host you create a WhoisClient instance, connect to the host, query the host, and finally disconnect from the host. If the whois service you want to query is on a non-standard port, connect to the host at that port.
You need below maven dependency in your pom.xml file.
<dependency> <groupId>commons-net</groupId> <artifactId>commons-net</artifactId> <version>3.3</version> </dependency>
Here is a CrunchifyWhoisExample.java file
package com.crunchify.tutorials;
import java.io.IOException;
import java.net.SocketException;
import org.apache.commons.net.whois.WhoisClient;
/**
* @author Crunchify.com
*
*/
public class CrunchifyWhoisExample {
public static void main(String[] args) {
CrunchifyWhoisExample obj = new CrunchifyWhoisExample();
System.out.println(obj.crunchifyWhois("crunchify.com"));
System.out.println("\nTest Finished..");
}
public String crunchifyWhois(String domainName) {
StringBuilder whoisResult = new StringBuilder("");
WhoisClient crunchifyWhois = new WhoisClient();
try {
// The WhoisClient class implements the client side of the Internet
// Whois Protocol defined in RFC 954. To query a host you create a
// WhoisClient instance, connect to the host, query the host, and
// finally disconnect from the host. If the whois service you want
// to query is on a non-standard port, connect to the host at that
// port.
crunchifyWhois.connect(WhoisClient.DEFAULT_HOST);
String whoisData = crunchifyWhois.query("=" + domainName);
whoisResult.append(whoisData);
crunchifyWhois.disconnect();
} catch (SocketException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return whoisResult.toString();
}
}
Output:
Whois Server Version 2.0 Domain names in the .com and .net domains can now be registered with many different competing registrars. Go to http://www.internic.net for detailed information. Domain Name: CRUNCHIFY.COM Registrar: GO MONTENEGRO DOMAINS, LLC Whois Server: whois.gomontenegrodomains.com Referral URL: http://www.gomontenegrodomains.com Name Server: NS1.CRUNCHIFY.COM Name Server: NS2.CRUNCHIFY.COM Status: clientDeleteProhibited Status: clientRenewProhibited Status: clientTransferProhibited Status: clientUpdateProhibited Updated Date: 09-aug-2013 Creation Date: 06-apr-2013 Expiration Date: 06-apr-2020 >>> Last update of whois database: Fri, 04 Oct 2013 18:46:02 UTC <<< ..... ..... Test Finished..