Example SRV record lookup for Minecraft servers

gistfile1.txt

$ host -t SRV _minecraft._tcp.survival.blolol.com
_minecraft._tcp.survival.blolol.com has SRV record 0 1 25565 minecraft.blolol.com.
$ host -t SRV _minecraft._tcp.creative.blolol.com
_minecraft._tcp.creative.blolol.com has SRV record 0 1 25566 minecraft.blolol.com.

$ java -jar SRVLookupTest.jar survival.blolol.com
minecraft.blolol.com:25565
$ java -jar SRVLookupTest.jar creative.blolol.com
minecraft.blolol.com:25566

SRVLookupTest.java

package com.rosspaffett.srv;

import org.xbill.DNS.Lookup;
import org.xbill.DNS.Record;
import org.xbill.DNS.SRVRecord;
import org.xbill.DNS.TextParseException;
import org.xbill.DNS.Type;

public class SRVLookupTest {

	public static void main(String[] args) {
		if (args.length < 1) {
			System.err.println("Usage: java -jar SRVLookupTest <hostname>");
			System.exit(1);
		}
		
		String query = "_minecraft._tcp." + args[0];
		
		try {
			Record[] records = new Lookup(query, Type.SRV).run();
			
			for (Record record : records) {
				SRVRecord srv = (SRVRecord)record;
				
				String hostname = srv.getTarget().toString().replaceFirst("\\.$", "");
				int port = srv.getPort();
				
				System.out.println(hostname + ":" + port);
			}
		} catch (TextParseException e) {
			e.printStackTrace();
		}
	}

}