Laravelを使ってオンラインチャット機能を実装する方法

// 创建用户表
Schema::create('users', function (Blueprint $table) {
    $table->increments('id');
    $table->string('name');
    $table->string('avatar');
    $table->timestamps();
});

// 创建聊天室表
Schema::create('chat_rooms', function (Blueprint $table) {
    $table->increments('id');
    $table->string('name');
    $table->timestamps();
});

// 创建聊天记录表
Schema::create('chat_messages', function (Blueprint $table) {
    $table->increments('id');
    $table->integer('sender_id')->unsigned();
    $table->integer('receiver_id')->unsigned();
    $table->longText('message');
    $table->timestamps();

    $table->foreign('sender_id')->references('id')->on('users')->onDelete('cascade');
    $table->foreign('receiver_id')->references('id')->on('users')->onDelete('cascade');
});

// 聊天室列表页面
Route::get('/chat/rooms', 'ChatController@rooms')->name('chat.rooms');

// 聊天页面路由
Route::get('/chat/room/{id}', 'ChatController@room')->name('chat.room');

<?php

namespace AppHttpControllers;

use IlluminateHttpRequest;
use AppUser;
use AppChatRoom;
use AppChatMessage;
use Auth;

class ChatController extends Controller
{
    // 聊天室列表页面
    public function rooms()
    {
        $rooms = ChatRoom::all();
        return view('chat.rooms', compact('rooms'));
    }

    // 聊天页面
    public function room($id)
    {
        $room = ChatRoom::findOrFail($id);
        $messages = ChatMessage::where('room_id', $id)->get();
        return view('chat.room', compact('room', 'messages'));
    }
}

@extends('layouts.app')

@section('content')
    <h1>聊天室列表</h1>
    <ul>
        @foreach($rooms as $room)
            <li><a href="{{ route('chat.room', $room->id) }}">{{ $room->name }}</a></li>
        @endforeach
    </ul>
@endsection

@extends('layouts.app')

@section('content')
    <h1>{{ $room->name }}</h1>
    <div id="messages">
        @foreach($messages as $message)
            <p>{{ $message->user->name }}: {{ $message->message }}</p>
        @endforeach
    </div>
    <form id="message-form">
        <input type="text" id="message-input">
        <button type="submit">发送</button>
    </form>
@endsection

@section('scripts')
    <script src="{{ asset('js/chat.js') }}"></script>
@endsection

import Echo from 'laravel-echo';

window.io = require('socket.io-client');

window.Echo = new Echo({
    broadcaster: 'socket.io',
    host: window.location.hostname + ':6001'
});

window.Echo.private('chat.room.' + roomId)
    .listen('ChatMessageEvent', (event) => {
        // 处理接收到的消息
        showMessage(event.user.name + ': ' + event.message);
    });

document.getElementById('message-form').addEventListener('submit', function(event) {
    event.preventDefault();
    let input = document.getElementById('message-input');
    
    // 发送消息给服务器
    window.Echo.private('chat.room.' + roomId)
        .whisper('typing', {
            message: input.value
        });
    
    input.value = '';
});

window.Echo.private('chat.room.' + roomId)
    .listenForWhisper('typing', (event) => {
        // 处理接收到的消息
        showMessage(event.user.name + ' is typing...');
    });

function showMessage(message) {
    let div = document.createElement('div');
    div.textContent = message;
    document.getElementById('messages').appendChild(div);
}