介绍

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  group@hyperf.io
 * @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

本作品采用《CC 协议》，转载必须注明作者和本文链接