基于 Hyperf+ WebSocket +RabbitMQ 实现的一个简单大屏幕的消息推送。
思路
利用 WebSocket 协议让客户端和服务器端保持有状态的长链接，
保存链接上来的客户端 id。订阅发布者发布的消息针对已保存的客户端 id 进行广播消息。
WebSocket 服务
composer require hyperf/websocket-server
配置文件 [config/autoload/server.PHP]
<?PHP return [ 'mode' => SWOOLE_PROCESS, 'servers' => [ [ 'name' => 'http', 'type' => Server::SERVER_HTTP, 'host' => '0.0.0.0', 'port' => 11111, 'sock_type' => SWOOLE_SOCK_TCP, 'callbacks' => [ SwooleEvent::ON_REQUEST => [Hyperf\HttpServer\Server::class, 'onRequest'], ], ], [ 'name' => 'ws', 'type' => Server::SERVER_WEBSOCKET, 'host' => '0.0.0.0', 'port' => 12222, 'sock_type' => SWOOLE_SOCK_TCP, 'callbacks' => [ SwooleEvent::ON_HAND_SHAKE => [Hyperf\WebSocketServer\Server::class, 'onHandShake'], SwooleEvent::ON_MESSAGE => [Hyperf\WebSocketServer\Server::class, 'onMessage'], SwooleEvent::ON_CLOSE => [Hyperf\WebSocketServer\Server::class, 'onClose'], ], ], ],
WebSocket 服务器端代码示例
<?PHP declare(strict_types=1); /** * This file is part of Hyperf. * * @link https://www.hyperf.io * @document https://doc.hyperf.io * @contact [email protected] * @license https://github.com/hyperf-cloud/hyperf/blob/master/LICENSE */ namespace App\Controller; use Hyperf\Contract\OnCloseInterface; use Hyperf\Contract\OnMessageInterface; use Hyperf\Contract\OnopenInterface; use Swoole\Http\Request; use Swoole\Server; use Swoole\Websocket\Frame; use Swoole\WebSocket\Server as WebSocketServer; class WebSocketController extends Controller implements OnMessageInterface, OnopenInterface, OnCloseInterface { /** * 发送消息 * @param WebSocketServer $server * @param Frame $frame */ public function onMessage(WebSocketServer $server, Frame $frame): void { //心跳刷新缓存 $redis = $this->container->get(\Redis::class); //获取所有的客户端id $fdList = $redis->sMembers('websocket_sjd_1'); //如果当前客户端在客户端集合中,就刷新 if (in_array($frame->fd, $fdList)) { $redis->sAdd('websocket_sjd_1', $frame->fd); $redis->expire('websocket_sjd_1', 7200); } $server->push($frame->fd, 'Recv: ' . $frame->data); } /** * 客户端失去链接 * @param Server $server * @param int $fd * @param int $reactorId */ public function onClose(Server $server, int $fd, int $reactorId): void { //删掉客户端id $redis = $this->container->get(\Redis::class); //移除集合中指定的value $redis->sRem('websocket_sjd_1', $fd); var_dump('closed'); } /** * 客户端链接 * @param WebSocketServer $server * @param Request $request */ public function onopen(WebSocketServer $server, Request $request): void { //保存客户端id $redis = $this->container->get(\Redis::class); $res1 = $redis->sAdd('websocket_sjd_1', $request->fd); var_dump($res1); $res = $redis->expire('websocket_sjd_1', 7200); var_dump($res); $server->push($request->fd, 'Opened'); } }
WebSocket 前端代码
function WebSockettest() { if (WebSocket in window) { console.log(您的浏览器支持 WebSocket!); var num = 0 // 打开一个 web socket var ws = new WebSocket(ws://127.0.0.1:12222); ws.onopen = function () { // Web Socket 已连接上，使用 send() 方法发送数据 //alert(数据发送中...); //ws.send(发送数据); }; window.setInterval(function () { //每隔5秒钟发送一次心跳，避免websocket连接因超时而自动断开 var ping = {type: ping}; ws.send(JSON.stringify(ping)); }, 5000); ws.onmessage = function (evt) { var d = JSON.parse(evt.data); console.log(d); if (d.code == 300) { $(.address).text(d.address) } if (d.code == 200) { var v = d.data console.log(v); num++ var str = `<div class=item> <p>${v.recordOutTime}</p> <p>${v.userOutName}</p> <p>${v.userOutNum}</p> <p>${v.doorOutName}</p> </div>` $(.tableHead).after(str) if (num > 7) { num-- $(.table .item:nth-last-child(1)).remove() } } }; ws.error = function (e) { console.log(e) alert(e) } ws.onclose = function () { // 关闭 websocket alert(连接已关闭...); }; } else { alert(您的浏览器不支持 WebSocket!); } }
AMQP 组件
composer require hyperf/amqp
配置文件 [config/autoload/amqp.PHP]
<?PHP return [ 'default' => [ 'host' => 'localhost', 'port' => 5672, 'user' => 'guest', 'password' => 'guest', 'vhost' => '/', 'pool' => [ 'min_connections' => 1, 'max_connections' => 10, 'connect_timeout' => 10.0, 'wait_timeout' => 3.0, 'heartbeat' => -1, ], 'params' => [ 'insist' => false, 'login_method' => 'AMQPLAIN', 'login_response' => null, 'locale' => 'en_US', 'connection_timeout' => 3.0, 'read_write_timeout' => 6.0, 'context' => null, 'keepalive' => false, 'heartbeat' => 3, ], ], ];
MQ 消费者代码
<?PHP declare(strict_types=1); namespace App\Amqp\Consumer; use Hyperf\Amqp\Annotation\Consumer; use Hyperf\Amqp\Message\ConsumerMessage; use Hyperf\Amqp\Result; use Hyperf\Server\Server; use Hyperf\Server\ServerFactory; /** * @Consumer(exchange=hyperf, routingKey=hyperf, queue=hyperf, nums=1) */ class DemoConsumer extends ConsumerMessage { /** * rabbmitMQ消费端代码 * @param $data * @return string */ public function consume($data): string { print_r($data); //获取集合中所有的value $redis = $this->container->get(\Redis::class); $fdList=$redis->sMembers('websocket_sjd_1'); $server=$this->container->get(ServerFactory::class)->getServer()->getServer(); foreach($fdList as $key=>$v){ if(!empty($v)){ $server->push((int)$v, $data); } } return Result::ACK; } }
控制器代码
/**
* test
* @return array
*/
public function test()
{
$data = array(
'code' => 200,
'data' => [
'userOutName' => 'ccflow',
'userOutNum' => '9999',
'recordOutTime' => date(Y-m-d H:i:s, time()),
'doorOutName' => '教师公寓',
]
);
$data = \GuzzleHttp\json_encode($data);
$message = new DemoProducer($data);
$producer = ApplicationContext::getContainer()->get(Producer::class);
$result = $producer->produce($message);
var_dump($result);
$user = $this->request->input('user', 'Hyperf');
$method = $this->request->getmethod();
return [
'method' => $method,
'message' => {$user}.,
];
}最终效果
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