首页 > 数据库 > PHP框架实现WebSocket在线聊天通讯系统
2019
11-21

PHP框架实现WebSocket在线聊天通讯系统

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

tp5的项目根目录下执行composer命令安装think-swoole:

composer require topthink/think-swoole

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" rel="external nofollow" />
<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()" rel="external nofollow" ></a>
  <h5 class="tit">在线聊天</h5>
  <a href=""><div class=" rel="external nofollow" 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

扫码芷若 获取免费视频学习资料

编程学习

查 看2019高级编程视频教程免费获取