Java

DNS Query TXT Records

See more DNS Examples

Shows how to perform a DNS query to retrieve TXT 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("TXT", "x.com", json);
        if (!success) {
            System.out.println(dns.getLastErrorText());
            return;
        }

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

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

        // {
        //   "answer": {
        //     "txt": [
        //       {
        //         "name": "x.com",
        //         "ttl": 300,
        //         "text": "kkdl3qb3tcrmdhfsm803p67r0my0svs8"
        //       },
        //       {
        //         "name": "x.com",
        //         "ttl": 300,
        //         "text": "v=spf1 ip4:199.16.156.128/26 ip4:199.59.150.64/26 include:_spf.google.com include:spf-008d0a01.pphosted.com -all"
        //       },
        //       {
        //         "name": "x.com",
        //         "ttl": 300,
        //         "text": "google-site-verification=8yQmoVhQedzlt36RPeQP41ytrEFk9aHEnde_xm0626g"
        //       },
        //       {
        //         "name": "x.com",
        //         "ttl": 300,
        //         "text": "google-site-verification=F6u9mGL--d2lbLljvH3b1UUgXtevQPdcamKr9c8914A"
        //       }
        //     ]
        //   }
        // }

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

        String name = "";
        int ttl = 0;
        String text = "";

        int i = 0;
        int count_i = json.sizeOfArray("answer.txt");
        while (i < count_i) {
            json.setI(i);
            name = json.stringOf("answer.txt[i].name");
            ttl = json.intOf("answer.txt[i].ttl");
            text = json.stringOf("answer.txt[i].text");
            i = i + 1;
        }
    }
}