我遵循了本教程： BUILD A CHAT APP WITH LARAVEL
但是当我在php Controller中跟踪持续时间时，broadcast()和event()函数的运行速度非常慢，只有2〜8秒。顺便说一句没有错误消息。
我想这不是正常情况，websocket是否应该实时运行？甚至我将DEBUG更改为true或false都没有改变。
我不知道laravel + pusher应该有多快。它们被称为“实时”，难道它们不应该在0.0秒钟左右运行吗？
有人可以请教吗？
**我只是再次测试。广播时间约为0.8秒，从客户端发送POST到客户端的Listener处理的广播的整个持续时间约为1秒。 抱歉，我无法重现昨天发生的性能下降。 对于Pusher，这种性能正常吗？谢谢！
env:
Laravel Framework 5.6.28
laravel/homestead (virtualbox, 5.0.1)
laravel/homestead (virtualbox, 5.1.0)
laravel/homestead (virtualbox, 5.2.0)
laravel/homestead (virtualbox, 6.1.0)
php "^7.1.3"
barryvdh/laravel-debugbar "^3.1"
fideloper/proxy "^4.0"
laravel/framework "5.6.*"
laravel/tinker "^1.0"
pusher/pusher-php-server "^3.1"
下面是我的代码：
<?php
//Controller
namespace App\Http\Controllers;
use App\Message;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use App\Events\MessageSent;
use Debugbar as Debugbar;
class ChatsController extends Controller
{
public function __construct()
{
$this->middleware('auth');
}
/**
* Show chats
*
* @return \Illuminate\Http\Response
*/
public function index()
{
return view('chat');
}
/**
* Fetch all messages
*
* @return Message
*/
public function fetchMessages()
{
return Message::with('user')->get();
}
/**
* Persist message to database
*
* @param Request $request
* @return Response
*/
public function sendMessage(Request $request)
{
$t2 = microtime(true);
$user = Auth::user();
// DebugBar::info($user);
//$message = $user->messages()->create(['message' => $request->input('message')]);
$message = $user->messages()->create(['message' => $request->input('message')]);
DebugBar::info("logic time:");
DebugBar::info(microtime(true) - $t2);
// $m = new Message(['message' => $request->input('message')]);
// $user->messages()->create($message);
// DebugBar::info($message);
$t1 = microtime(true);
// broadcast(new MessageSent($user,$message));
event(new MessageSent($user,$message));
DebugBar::info("broadcast time:");
DebugBar::info(microtime(true) - $t1);
return ['status' => 'Message Sent!'];
}
public function clearMessage(){
$u = Auth::user();
$m = $u->messages();
$m->delete();
}
}
<?php
//Event
namespace App\Events;
use Illuminate\Broadcasting\Channel;
use Illuminate\Queue\SerializesModels;
use Illuminate\Broadcasting\PrivateChannel;
use Illuminate\Broadcasting\PresenceChannel;
use Illuminate\Foundation\Events\Dispatchable;
use Illuminate\Broadcasting\InteractsWithSockets;
use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
use Illuminate\Contracts\Broadcasting\ShouldBroadcastNow;
use App\User;
use App\Message;
class MessageSent implements ShouldBroadcastNow
{
use Dispatchable, InteractsWithSockets, SerializesModels;
/**
* The name of the queue on which to place the event.
*
* @var string
*/
public $broadcastQueue = 'your-queue-name';
/**
* User that sent the message
*
* @var User
*/
public $user;
/**
* Message details
*
* @var Message
*/
public $message;
/**
* Create a new event instance.
*
* @return void
*/
// public function __construct(User $user, Message $message)
public function __construct(User $user, Message $message)
{
$this->user = $user;
// $this->message = 'this is a message from MessageSent Class';
$this->message = $message;
}
/**
* Get the channels the event should broadcast on.
*
* @return Channel|array
*/
public function broadcastOn()
{
return new PrivateChannel('chat');
}
}
<?php
// User
namespace App;
use Illuminate\Notifications\Notifiable;
use Illuminate\Foundation\Auth\User as Authenticatable;
class User extends Authenticatable
{
use Notifiable;
/**
* The attributes that are mass assignable.
*
* @var array
*/
protected $fillable = [
'name', 'email', 'password',
];
/**
* The attributes that should be hidden for arrays.
*
* @var array
*/
protected $hidden = [
'password', 'remember_token',
];
/**
* A user can have many messages
*
* @return \Illuminate\Database\Eloquent\Relations\HasMany
*/
public function messages()
{
return $this->hasMany(Message::class);
}
}
<?php
//Message
namespace App;
use Illuminate\Database\Eloquent\Model;
class Message extends Model
{
//
/**
* Fields that are mass assignable
*
* @var array
*/
protected $fillable = ['message'];
/**
* A message belong to a user
*
* @return \Illuminate\Database\Eloquent\Relations\BelongsTo
*/
public function user()
{
return $this->belongsTo(User::class);
}
}
/**
* First we will load all of this project's JavaScript dependencies which
* includes Vue and other libraries. It is a great starting point when
* building robust, powerful web applications using Vue and Laravel.
*/
require('./bootstrap');
window.Vue = require('vue');
//....
// chat example
Vue.component('chat-messages', require('./components/ChatMessages.vue'));
Vue.component('chat-form', require('./components/ChatForm.vue'));
/**
* Next, we will create a fresh Vue application instance and attach it to
* the page. Then, you may begin adding components to this application
* or customize the JavaScript scaffolding to fit your unique needs.
*/
let vm = new Vue({
el:'#app',
data:{
name:'root',
//
// ...
//
// chat example
messages: [],
},
created(){
// chat example
this.fetchMessages();
window.Echo.private('chat')
.listen('MessageSent', (e) => {
console.log('listened:');
console.log(e);
this.messages.push({
message: e.message.message,
user: e.user
});
});
},
mounted(){
},
methods:{
//
//...
//
// chat example
fetchMessages() {
axios.get('/messages').then(response => {
this.messages = response.data;
});
},
addMessage(message) {
// this.messages.push(message);
axios.post('/messages', message).then(response => {
console.log('Post response:');
console.log(response.data);
});
}
},
components:{
'top-nav-p': topNavP,
'slide-0': homeComponent,
'slide-1':gameListComponent,
}
});<!-- resources/views/chat.blade.php -->
@extends('layouts.app')
@section('content')
<div class="container">
<div class="row">
<div class="col-md-8 col-md-offset-2">
<div class="panel panel-default">
<div class="panel-heading">Chats</div>
<div class="panel-body">
<chat-messages v-bind:messages="messages"></chat-messages>
</div>
<div class="panel-footer">
<chat-form
v-on:messagesent="addMessage"
:user="{{ Auth::user() }}"
></chat-form>
</div>
</div>
</div>
</div>
</div>
@endsection
// resources/assets/js/components/ChatMessages.vue
<template>
<ul class="chat">
<li class="left clearfix" v-for="message in messages">
<div class="chat-body clearfix">
<div class="header">
<strong class="primary-font">
{{ message.user.name }}
</strong>
</div>
<p>
{{ getTime(message.message) }}
</p>
</div>
</li>
</ul>
</template>
<script>
export default {
props: ['messages'],
methods: {
getTime(m){
return (performance.now()-m);
}
},
};
</script>
// resources/assets/js/components/ChatForm.vue
<template>
<div class="input-group">
<input id="btn-input" type="text" name="message" class="form-control input-sm" placeholder="Type your message here..." v-model="newMessage" @keyup.enter="sendMessage">
<span class="input-group-btn">
<button class="btn btn-primary btn-sm" id="btn-chat" @click="sendMessage">
Send
</button>
</span>
</div>
</template>
<script>
export default {
props: ['user'],
data() {
return {
newMessage: ''
}
},
methods: {
sendMessage() {
this.$emit('messagesent', {
user: this.user,
message: performance.now(),//this.newMessage
});
this.newMessage = ''
}
}
}
</script>
答案 0 :(得分：0)
我发现default中的queue.php指向sync，这仅适用于开发人员。
将default更改为database用于生产后，
函数broadcast()更改为约0.01秒。
感谢阅读。