ThinkPHP5.0结合Swoole开发WebSocket在线聊天

发布时间:2019-10-10 09:58:57 作者:Aoe Wide 阅读量:2636

ThinkPHP使用Swoole需要安装 think-swoole Composer包,前提系统已经安装好了Swoole PECL 拓展(相关学习视频:Linux下源码包安装使用Swoole扩展)https://www.bilibili.com/video/av55985323

在tp5的项目根目录下执行composer命令安装think-swoole:

composer require topthink/think-swoole

安装成功:

话不多说,直接上代码:

新建WebSocket.php控制器:

(监听端口要确认服务器放行,宝塔环境还需要添加安全组规则)

<?php

namespace app\home\controller;
use think\swoole\Server;
class WebSocket extends Server
{
protected $host = '0.0.0.0'; //监听所有地址
protected $port = 9501; //监听9501端口
protected $serverType = 'socket';
protected $option = [ 
'worker_num'=> 4, //设置启动的Worker进程数
'daemonize' => false, //守护进程化(上线改为true)
'backlog' => 128, //Listen队列长度
'dispatch_mode' => 2, //固定模式,保证同一个连接发来的数据只会被同一个worker处理

//心跳检测:每60秒遍历所有连接,强制关闭10分钟内没有向服务器发送任何数据的连接
'heartbeat_check_interval' => 60,
'heartbeat_idle_time' => 600
];

//建立连接时回调函数
public function onOpen($server,$req)
{
$fd = $req->fd;//客户端标识
$uid = $req->get['uid'];//客户端传递的用户id
$token = $req->get['token'];//客户端传递的用户登录token

//省略token验证逻辑......
if (!$token) {
$arr = array('status'=>2,'message'=>'token已过期');
$server->push($fd, json_encode($arr));
$server->close($fd);
return;
}
//省略给用户绑定fd逻辑......
echo "用户{$uid}建立了连接,标识为{$fd}\n";
}

//接收数据时回调函数
public function onMessage($server,$frame)
{
$fd = $frame->fd;
$message = $frame->data;

//省略通过fd查询用户uid逻辑......
$uid = 666;
$data['uid'] = $uid;
$data['message'] = '用户'.$uid.'发送了:'.$message;
$data['post_time'] = date("m/d H:i",time());
$arr = array('status'=>1,'message'=>'success','data'=>$data);

//仅推送给当前连接用户
//$server->push($fd, json_encode($arr));

//推送给全部连接用户
foreach($server->connections as $fd) {
$server->push($fd, json_encode($arr));
} 
}

//连接关闭时回调函数
public function onClose($server,$fd)
{
echo "标识{$fd}关闭了连接\n";
}
}

前端演示页面:

(省略控制器判断登录状态、分配数据逻辑......)

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
<title>Chat</title>
<link rel="stylesheet" type="text/css" href="/static/liaotian/chat.css" />
<script src="/static/liaotian/js/jquery.min.js"></script>
<script src="/static/liaotian/js/flexible.js"></script>
</head>
<body>
<header class="header">
<a class="back" href="javascript:history.back()"></a>
<h5 class="tit">在线聊天</h5>
<a href=""><div class="right">退出</div></a>
</header>

<!-- 聊天内容 start-->
<div class="message"> </div>
<!-- 聊天内容 end-->

<!-- 底部 start-->
<div class="footer">
<img id="setbtn" src="/static/liaotian/images/hua.png" alt="" />
<img src="/static/liaotian/images/xiaolian.png" alt="" />
<input type="text" id="msg" value="" maxlength="300">
<p style="background: rgb(17, 79, 142);" id="sendBtn">发送</p>
</div>
<!-- 底部 end-->
</body>
</html>
<script src="http://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script>
<script src="https://cdn.bootcss.com/layer/3.1.0/layer.js"></script>
<script type="text/javascript">
$(function () {
var uid = 666;//当前用户id
var token = 'abcdefg';//用户token

//判断浏览器是否支持WebSocket
var supportsWebSockets = 'WebSocket' in window || 'MozWebSocket' in window;
if (supportsWebSockets) {
//建立WebSocket连接(ip地址换成自己主机ip)
var ws = new WebSocket("ws://127.0.0.1:9501?uid="+uid+"&token="+token);
ws.onopen = function () {
layer.msg('服务器连接成功',{shade:0.1,icon:1,time:600});
};
ws.onerror = function () {
layer.msg('服务器连接失败',{shade:0.1,icon:2,time:600});
};
ws.onmessage = function (evt) {
var data = $.parseJSON(evt.data);
//错误提示
if(data.status != 1){
layer.alert(data.message,{icon:2});
return;
}
//消息返回
if (data.status==1 && data.data.message!='') {
var html = "";
if (data.data.uid == uid) {
html += "<div style='word-break:break-all' class=\"show\"><div class=\"time\">"+data.data.post_time+"</div><div class=\"msg\"><img src=\""+data.data.head_img+"\" alt=\"\" /><p><i clas=\"msg_input\"></i>"+data.data.message+"</p></div></div>";
}else{
html += "<div style='word-break:break-all' class=\"send\"><div class=\"time\">"+data.data.post_time+"</div><div class=\"msg\"><img src=\""+data.data.head_img+"\" alt=\"\" /><p><i clas=\"msg_input\"></i>"+data.data.message+"</p></div></div>";
}
}
$(".message").append(html);
setTimeout(function () {
($('.message').children("div:last-child")[0]).scrollIntoView();//向上滚动
},100);
};
ws.onclose = function (res) {

};
//按钮发送
$("#sendBtn").click(function () {
var contents = $("#msg").val().trim();
if(contents == null || contents == ""){
layer.msg('内容为空',{shade:0.1,icon:2,time:600}); 
return false;
}else{
ws.send(contents);
$("#msg").val("");
}
});
//回车发送
$("#msg").keydown(function (evel) {
var that = $(this);
if (evel.keyCode == 13) {
evel.cancelBubble = true;
evel.preventDefault();
evel.stopPropagation();
var contents = that.val().trim();
if(contents == null || contents == ""){
layer.msg('内容为空',{shade:0.1,icon:2,time:600}); 
return false;
}else{
ws.send(contents);
that.val("");
}
}
});
}else{
layer.alert("您的浏览器不支持 WebSocket!");
}
});
</script>

服务器移到项目根目录开启服务:

php public/index.php Websocket/start

(这里的路径,是因为我绑定了home模块为默认模块,tp5默认情况是:php public/index.php index/Websocket/start)

开启成功,查看端口已经被监听:

lsof -i:9501

服务器监听如下:

用户每刷新重连一次,fd标识都会改变。

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Aoe Wide

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