安卓域名解析错误怎么办

import android.os.AsyncTask;
import android.util.Log;

import java.net.InetAddress;
import java.net.UnknownHostException;

public class DNSResolver extends AsyncTask<String, Void, String> {
    @Override
    protected String doInBackground(String... params) {
        String domain = params[0];
        try {
            InetAddress inetAddress = InetAddress.getByName(domain);
            return inetAddress.getHostAddress();
        } catch (UnknownHostException e) {
            Log.e("DNSResolver", "Failed to resolve domain: " + domain, e);
            return null;
        }
    }

    @Override
    protected void onPostExecute(String ipAddress) {
        if (ipAddress != null) {
            Log.d("DNSResolver", "Resolved IP address: " + ipAddress);
        } else {
            Log.d("DNSResolver", "Failed to resolve domain");
        }
    }
}