book_admin/application/extra/kafka.php

<?php
/**
 * Created by PhpStorm.
 * User: Bear
 * Date: 2020/5/6
 * Time: 下午1:47
 */

use think\Env;

return [
    'topic'   => Env::get('kafka.topic', 'cps_statistic'),
    'servers' => Env::get('kafka.servers', '192.168.0.90:9092'),
];