WebSocket服务
WebSocket 特点
- 建立在TCP协议之上
- 性能开销小，通信高效
- 客户端可以与任意服务器通信
- 协议标识符
ws、wss - 持久化网络通信协议
服务端
//创建websocket服务器对象，监听0.0.0.0:8812端口
$ws = new swoole_websocket_server("0.0.0.0", 8812);
$ws->set([
'enable_static_handler' => true,
'document_root' => '/home/haojianhai/swoole-study/assets',
]);
//监听WebSocket连接打开事件
$ws->on('open', function ($ws, $request) {
var_dump($request->fd, $request->get, $request->server);
$ws->push($request->fd, "hello, welcome\n");
});
//监听WebSocket消息事件
$ws->on('message', function ($ws, $frame) {
echo "Message: {$frame->data}\n";
$ws->push($frame->fd, "server: {$frame->data}");
});
//监听WebSocket连接关闭事件
$ws->on('close', function ($ws, $fd) {
echo "client-{$fd} is closed\n";
});
$ws->start();
客户端
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>ws_client</title>
</head>
<body>
<h1>ws测试</h1>
<script type="text/javascript">
var wsURL = 'ws://192.168.31.54:8812';
var websocket = new WebSocket(wsURL);
// 实例对象的onopen属性
websocket.onopen = function(evt){
websocket.send("hello-jianhaihao");
console.log("connected-swoole-websocket-success");
}
// 实例化 onmessage
websocket.onmessage = function(evt){
console.log("ws-server-retunrn-data:" + evt.data);
}
// onclose
websocket.onclose = function(evt){
console.log("close");
}
// onerror
websocket.onerror = function(evt, e){
console.log("error: " + evt.data);
}
</script>
</body>
</html>
服务端优化
/**
* Ws 优化 基础类库
*/
class Ws
{
const HOST = "0.0.0.0";
const PORT = 8812;
public $ws = null;
public function __construct()
{
$this->ws = new swoole_websocket_server(self::HOST, self::PORT);
$this->ws->on("open", [$this, "onOpen"]);
$this->ws->on("message", [$this, "onMessage"]);
$this->ws->on("close", [$this, "onClose"]);
$this->ws->start();
}
/**
* 监听ws连接事件
* @param $ws
* @param $request
*/
public function onOpen($ws, $request)
{
var_dump($request->fd);
}
/**
* 监听ws消息事件
* @param $ws
* @param $frame
*/
public function onMessage($ws, $frame)
{
echo "ser-push-message: {$frame->data}\n";
$ws->push($frame->fd, "server-push: " . date("Y-m-d H:i:s"));
}
/**
* close
* @param $ws
* @param $fd
*/
public function onClose($ws, $fd)
{
echo "client-colse-id: {$fd}\n";
}
}
// 实例化类调用
$obj = new Ws();