Java

DNS Query SOA Records

See more DNS Examples

Shows how to perform a DNS query to retrieve SOA records.

Note: This example requires Chilkat v9.5.0.96 or later.

Chilkat2 Java

import com.chilkatsoft.chilkat2.Dns;
import com.chilkatsoft.chilkat2.JsonObject;

public class ChilkatExample {

    public static void main(String[] args) {
        boolean success = false;

        Dns dns = new Dns();

        JsonObject json = new JsonObject();
        json.setEmitCompact(false);

        success = dns.query("SOA", "x.com", json);
        if (!success) {
            System.out.println(dns.getLastErrorText());
            return;
        }

        System.out.println(json.emit());

        // Sample response.
        // Parsing code below..

        // {
        //   "answer": {
        //     "soa": [
        //       {
        //         "name": "x.com",
        //         "ttl": 1800,
        //         "mname": "alexia.ns.cloudflare.com",
        //         "rname": "dns.cloudflare.com",
        //         "serial": -1971124188,
        //         "refresh": 10000,
        //         "retry": 2400,
        //         "expire": 604800,
        //         "minttl": 1800
        //       }
        //     ]
        //   }
        // }

        // Use this online tool to generate parsing code from sample JSON:
        // Generate Parsing Code from JSON

        String name = "";
        int ttl = 0;
        String mname = "";
        String rname = "";
        int serial = 0;
        int refresh = 0;
        int retry = 0;
        int expire = 0;
        int minttl = 0;

        int i = 0;
        int count_i = json.sizeOfArray("answer.soa");
        while (i < count_i) {
            json.setI(i);
            name = json.stringOf("answer.soa[i].name");
            ttl = json.intOf("answer.soa[i].ttl");
            mname = json.stringOf("answer.soa[i].mname");
            rname = json.stringOf("answer.soa[i].rname");
            serial = json.intOf("answer.soa[i].serial");
            refresh = json.intOf("answer.soa[i].refresh");
            retry = json.intOf("answer.soa[i].retry");
            expire = json.intOf("answer.soa[i].expire");
            minttl = json.intOf("answer.soa[i].minttl");
            i = i + 1;
        }
    }
}