uni-app中如何使用laravel-echo连接websocket服务
uni-app中如何使用laravel-echo连接websocket服务
代码示例
import Echo from 'laravel-echo';
window.Pusher = require('pusher-js');
let laravelEcho = new Echo({
broadcaster: 'pusher',
key: process.env.MIX_PUSHER_APP_KEY,
wsHost: process.env.MIX_PUSHER_HOST,
wsPort: process.env.MIX_PUSHER_PORT,
wssPort: process.env.MIX_PUSHER_PORT,
forceTLS: false,
encrypted: true,
disableStats: true,
enabledTransports: ['ws', 'wss'],
});
laravelEcho.private(`orders.${orderId}`)
.listen('OrderShipmentStatusUpdated', (e) => {
console.log(e.order);
});
报错信息
reportJSException >>> exception function:createInstanceContext, exception:white screen cause create instanceContext failed,check js stack ->
Uncaught TypeError: Cannot read property 'btoa' of undefined
at (app-service.js:138733:32)
at webpack_require (app-service.js:138068:31)
at (app-service.js:138455:31)
at webpack_require (app-service.js:138068:31)
at (app-service.js:138121:18)
at (app-service.js:138122:10)
at webpackUniversalModuleDefinition (app-service.js:138049:25)
at (app-service.js:138050:7)
at (app-service.js:142049:5)
at (app-service.js:194330:3)
网页端可以正常连接,在uni-app中就不行了,求大佬指点!!!
图片
1 回复
在 uni-app
中使用 laravel-echo
连接 WebSocket 服务,你需要结合 Laravel Echo 和 Pusher 或 Socket.IO 等 WebSocket 服务器。下面是一个基本的示例,展示如何在 uni-app
中集成 Laravel Echo 来连接 WebSocket 服务。
1. 安装 Laravel Echo 和 Pusher-JS 或 Socket.IO-Client
首先,确保你已经在 uni-app
项目中安装了 Laravel Echo 和相应的 WebSocket 客户端库。例如,如果你使用的是 Pusher,可以通过 npm 安装:
npm install laravel-echo pusher-js --save
2. 配置 Laravel Echo
在你的 uni-app
项目中创建一个配置文件,例如 echo.js
,用于配置 Laravel Echo:
import Echo from 'laravel-echo';
window.Pusher = require('pusher-js');
window.Echo = new Echo({
broadcaster: 'pusher',
key: process.env.VUE_APP_PUSHER_APP_KEY,
cluster: process.env.VUE_APP_PUSHER_APP_CLUSTER,
forceTLS: true
});
// 如果你使用的是 Socket.IO,配置如下:
// window.Echo = new Echo({
// broadcaster: 'socket.io',
// host: window.location.hostname + ':6001',
// auth: {
// headers: {
// Authorization: 'Bearer ' + yourAuthToken,
// },
// },
// });
3. 在 uni-app
中使用 Laravel Echo
在你的 uni-app
组件或页面中引入并使用 Laravel Echo。例如,在 pages/index/index.vue
中:
<template>
<view>
<text>WebSocket Test</text>
</view>
</template>
<script>
import './echo'; // 确保引入了 echo.js 配置
export default {
mounted() {
window.Echo.channel('test-channel')
.listen('TestEvent', (e) => {
console.log('Received event:', e);
// 在这里处理事件,例如更新 UI
});
},
};
</script>
4. 在 Laravel 中广播事件
确保你的 Laravel 应用能够广播事件。例如,创建一个事件和一个监听器,然后在事件触发时广播:
// 在 EventServiceProvider 中注册事件和监听器
protected $listen = [
'App\Events\TestEvent' => [
'App\Listeners\BroadcastTestEvent',
],
];
// TestEvent.php
namespace App\Events;
use Illuminate\Broadcasting\Channel;
use Illuminate\Queue\SerializesModels;
use Illuminate\Broadcasting\PrivateChannel;
use Illuminate\Broadcasting\PresenceChannel;
use Illuminate\Broadcasting\InteractsWithSockets;
use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
use Illuminate\Foundation\Events\Dispatchable;
use Illuminate\Broadcasting\InteractsWithSockets;
class TestEvent implements ShouldBroadcast
{
use Dispatchable, InteractsWithSockets, SerializesModels;
public $message;
/**
* Create a new event instance.
*
* @return void
*/
public function __construct($message)
{
$this->message = $message;
}
/**
* Get the channels the event should broadcast on.
*
* @return Channel|array
*/
public function broadcastOn()
{
return new Channel('test-channel');
}
}
这样,你就能够在 uni-app
中通过 Laravel Echo 连接并监听 WebSocket 事件了。