概述
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
登录后复制配置文件 [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 => [HyperfHttpServerServer::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 => [HyperfWebSocketServerServer::class, 'onHandShake'],
SwooleEvent::ON_MESSAGE => [HyperfWebSocketServerServer::class, 'onMessage'],
SwooleEvent::ON_CLOSE => [HyperfWebSocketServerServer::class, 'onClose'],
],
],
],登录后复制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 AppController;
use HyperfContractOnCloseInterface;
use HyperfContractOnMessageInterface;
use HyperfContractOnOpenInterface;
use SwooleHttpRequest;
use SwooleServer;
use SwooleWebsocketFrame;
use SwooleWebSocketServer 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');
}
}登录后复制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!");
}
}登录后复制AMQP 组件
composer require hyperf/amqp
登录后复制配置文件 [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,
],
],
];登录后复制MQ 消费者代码
<?php
declare(strict_types=1);
namespace AppAmqpConsumer;
use HyperfAmqpAnnotationConsumer;
use HyperfAmqpMessageConsumerMessage;
use HyperfAmqpResult;
use HyperfServerServer;
use HyperfServerServerFactory;
/**
* @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;
}
}登录后复制控制器代码
/**
* 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',
]
);
$data = GuzzleHttpjson_encode($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}.",
];
}登录后复制最终效果
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