Java Requires Chilkat v9.5.0.96+

Resolve Domain to IP Address

See more DNS Examples

Demonstrates how to perform a DNS query to obtain A records for resolving a domain name to an IPv4 address. 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("A", "microsoft.com", json);
        if (!success) {
            System.out.println(dns.getLastErrorText());
            return;
        }

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

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

        // {
        //   "answer": {
        //     "a": [
        //       {
        //         "name": "microsoft.com",
        //         "ttl": 1528,
        //         "ipv4": "20.112.250.133"
        //       },
        //       {
        //         "name": "microsoft.com",
        //         "ttl": 1528,
        //         "ipv4": "20.231.239.246"
        //       },
        //       {
        //         "name": "microsoft.com",
        //         "ttl": 1528,
        //         "ipv4": "20.76.201.171"
        //       },
        //       {
        //         "name": "microsoft.com",
        //         "ttl": 1528,
        //         "ipv4": "20.70.246.20"
        //       },
        //       {
        //         "name": "microsoft.com",
        //         "ttl": 1528,
        //         "ipv4": "20.236.44.162"
        //       }
        //     ]
        //   }
        // }

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

        String name = "";
        int ttl = 0;
        String ipv4 = "";

        int i = 0;
        int count_i = json.sizeOfArray("answer.a");
        while (i < count_i) {
            json.setI(i);
            name = json.stringOf("answer.a[i].name");
            ttl = json.intOf("answer.a[i].ttl");
            ipv4 = json.stringOf("answer.a[i].ipv4");
            i = i + 1;
        }
    }
}