thinkphp 6.0 swoole扩展websocket使用教程

前言

ThinkPHP即将迎来最新版本6.0，针对目前越来越流行Swoole，thinkphp也推出了最新的扩展think-swoole 3.0。

介绍

即将推出的tp6.0，已经适配swoole.并推出think-swoole 3.0，并且默认适配了socketio。和2.0版本在使用方法上面有些许不同。

Websocket 继承与Http，进行websocket连接之前需要一次HTTP请求，如果当期地址支持websocket则返回101，然后进行连接。也就是说并不是我的服务支持websocket后，请求每个连接地址都可以进行websocket连接，而是需要预先适配才可以连接。

参数配置

'server'           => [        'host'      => '0.0.0.0', // 监听地址
        'port'      => 808, // 监听端口
        'mode'      => SWOOLE_PROCESS, // 运行模式 默认为SWOOLE_PROCESS
        'sock_type' => SWOOLE_SOCK_TCP, // sock type 默认为SWOOLE_SOCK_TCP
        'options'   => [            'pid_file'              => runtime_path() . 'swoole.pid',            'log_file'              => runtime_path() . 'swoole.log',            'daemonize'             => false,            // Normally this value should be 1~4 times larger according to your cpu cores.
            'reactor_num'           => swoole_cpu_num(),            'worker_num'            => swoole_cpu_num(),            'task_worker_num'       => 4,//swoole_cpu_num(),
            'enable_static_handler' => true,            'document_root'         => root_path('public'),            'package_max_length'    => 20 * 1024 * 1024,            'buffer_output_size'    => 10 * 1024 * 1024,            'socket_buffer_size'    => 128 * 1024 * 1024,            'max_request'           => 3000,            'send_yield'            => true,
        ],
    ],    'websocket'        => [        'enabled'       => true,// 开启websocket
        'handler'       => Handler::class,  //自定义wbesocket绑定类
        'parser'        => Parser::class, //自定义解析类
        'route_file'    => base_path() . 'websocket.php',        'ping_interval' => 25000,        'ping_timeout'  => 60000,        'room'          => [            'type'        => TableRoom::class,            'room_rows'   => 4096,            'room_size'   => 2048,            'client_rows' => 8192,            'client_size' => 2048,
        ],
    ],    'auto_reload'      => true,    'enable_coroutine' => true,    'resetters'        => [],    'tables'           => [],

handler和parser大大方便了自定义websocket服务，默认系统集成socketio。

本文主要介绍如何使用socketio，这里假设大家有socketio有一定了解和使用基础。

socketIo默认会在请求地址后加相应的参数

而在tp-swoole3.0内部已经对该地址请求进行了处理

param('transport'), $this->transports)) {            return json(
                [                    'code'    => 0,                    'message' => 'Transport unknown',
                ],                400
            );
        }        if ($request->has('sid')) {
            $response = response('1:6');
        } else {
            $sid     = base64_encode(uniqid());
            $payload = json_encode(
                [                    'sid'          => $sid,                    'upgrades'     => ['websocket'],                    'pingInterval' => $config->get('swoole.websocket.ping_interval'),                    'pingTimeout'  => $config->get('swoole.websocket.ping_timeout'),
                ]
            );
            $cookie->set('io', $sid);
            $response = response('97:0' . $payload . '2:40');
        }        return $response->contentType('text/plain');
    }    public function reject(Request $request)
    {        return json(
            [                'code'    => 3,                'message' => 'Bad request',
            ],            400
        );
    }
}

TP6.0,插件注册采用了service方式进行了注册，可在tp-swoole 服务注册文件中查看路由注册信息,如果想自定义链接规则，则可以覆盖该路由。

// +----------------------------------------------------------------------namespace think\swoole;use Swoole\Http\Server as HttpServer;use Swoole\Websocket\Server as WebsocketServer;use think\App;use think\Route;use think\swoole\command\Server as ServerCommand;use think\swoole\facade\Server;use think\swoole\websocket\socketio\Controller;use think\swoole\websocket\socketio\Middleware;class Service extends \think\Service{    protected $isWebsocket = false;    /**
     * @var HttpServer | WebsocketServer
     */
    protected static $server;    public function register()
    {        $this->isWebsocket = $this->app->config->get('swoole.websocket.enabled', false);        $this->app->bind(Server::class, function () {            if (is_null(static::$server)) {                $this->createSwooleServer();
            }            return static::$server;
        });        $this->app->bind('swoole.server', Server::class);        $this->app->bind(Swoole::class, function (App $app) {            return new Swoole($app);
        });        $this->app->bind('swoole', Swoole::class);
    }    public function boot(Route $route)
    {        $this->commands(ServerCommand::class);        if ($this->isWebsocket) {
            $route->group(function () use ($route) {
                $route->get('socket.io/', '@upgrade');
                $route->post('socket.io/', '@reject');
            })->prefix(Controller::class)->middleware(Middleware::class);
        }
    }    /**
     * Create swoole server.
     */
    protected function createSwooleServer()
    {
        $server     = $this->isWebsocket ? WebsocketServer::class : HttpServer::class;
        $config     = $this->app->config;
        $host       = $config->get('swoole.server.host');
        $port       = $config->get('swoole.server.port');
        $socketType = $config->get('swoole.server.socket_type', SWOOLE_SOCK_TCP);
        $mode       = $config->get('swoole.server.mode', SWOOLE_PROCESS);        static::$server = new $server($host, $port, $mode, $socketType);
        $options = $config->get('swoole.server.options');        static::$server->set($options);
    }
}

Socketio默认使用demo

Websocket路由配置方法

在app目录下新建websocket.php文件,其中需要注意，由于使用了反射，闭包参数名称不能随意定义，不然无法注入。第一个参数是websocket，是当前websocket的Server对象，第二个参数data是客户端发送的数据。其中socketio emit的第一个参数和Websocket::on的第一个参数一致，作为事件名称。

emit("test", "asd");
});
Websocket::on("test1", function ($websocket, $data) {
    $websocket->emit("test", "asd");
});
Websocket::on("join", function (\think\swoole\Websocket $websocket, $data) {
    $websocket->join("1");
});

我也会在接下来的文章中，一起与大家分享我的使用过程。

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