1.修改redis 配置

开启redis.conf 文件中 notify-keyspace-events Ex

或者 在redis-cli 客户端输入如下命令:
config set notify-keyspace-events Ex

2.修改laravel database.php

//datebase.php配置页面'redis' => [        'client' => 'predis',        'default' => [            'host' => env('REDIS_HOST', '127.0.0.1'),            'password' => env('REDIS_PASSWORD', null),            'port' => env('REDIS_PORT', 6379),            'database' => 0,            "queue" => '{default}',//queue站点默认走的redis        ],        'publisher' => [ //redis 订阅监听                    'host' => env('REDIS_HOST', '127.0.0.1'),                    'password' => env('REDIS_PASSWORD', null),                    'port' => env('REDIS_PORT', 6379),                    'database' => 0,                    "read_write_timeout"=>0,//长连接不要断                ],           ]

3.在脚本的地方实现监听方法

        $redis=Redis::connection('publisher');//创建新的实例        $redis->psubscribe(['__keyevent@*__:expired'], function ($message, $channel) {            echo $channel.PHP_EOL;//订阅的频道            echo $message.PHP_EOL;//过期的key            echo '---'.PHP_EOL;        });