我是 NodeJS 和 Socket.io 技術的新手，我面臨著存儲在 io.sockets.adapter.rooms 中的變量的問題。我有我的 app.js ：var app = require('express')();var http = require('http').createServer(app);var io = require('socket.io')(http);app.get('/', (req, res) => { res.sendFile(__dirname + '/index.html');});io.on('connection', (socket) => { console.log('a user connected'); socket.on('message', function (room) { socket.join(room); console.log(io.sockets.adapter.rooms); io.sockets.adapter.rooms[room].variable = "This is a test"; })});http.listen(3000, () => { console.log('listening on *:3000');});索引.html：<!DOCTYPE html><html><head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title></head> <input type="button" value="Press me" id="test"><body> <script src="/socket.io/socket.io.js"></script> <script> var socket = io(); document.getElementById('test').addEventListener('click', function () { socket.emit('message', 'room1'); }) </script></body></html>服務器返回此錯誤：TypeError: Cannot set property 'variable' of undefined這意味著“io.sockets.adapter.rooms[room].variable”未定義，但我不明白如何定義它。順便說一句，我正在使用 NodeJS 12.8.3 和express 4.17.1也許我需要一個特定的模塊？非常感謝所有花時間回答這個問題的人
NodeJS + Socket.IO：訪問房間變量時出現問題
守候你守候我
2023-08-18 16:34:03
