这在dnsjava的例子中是没有的，但是我发现了这一点：
(in斯卡拉）

import org.xbill.DNS._

val resolver = new SimpleResolver("8.8.8.8")
val lookup = new Lookup("example.com")
lookup.setResolver(resolver)
val records = lookup.run()
val address = records.asInstanceOf[ARecord].getAddress()

import org.xbill.DNS.*;
public Class ChoseDNSServer
{
    private SimpleResolver sp;
    private Lookup look;

    public ChoseDNSServer(String ip)
    {
          //Provide ip of server you want to choose for your DNS query
          sp = new SimpleResolver(ip);
          look = new Lookup("URL");
          look.setResolver(sp);          
          //Above method is used for setting up default DNS server.
    }

    public switchToServer(String ip)
    {
         sp = new SimpleResolver(ip);
         look.setResolver(sp);
    }

    public Record lookup(String url)
    {
         look = new Lookup(url);
         return look.run();
    }

}