socket.io客户端没有收到消息
问题描述:
当没有指定房间时客户端收到消息,但指定房间时我无法在客户端上接收消息。socket.io客户端没有收到消息
server.js
var socket = require('socket.io');
var mysql = require('mysql');
const path = require('path');
var express = require('express');
var app = express();
var server = require('http').createServer(app);
var io = socket.listen(server);
var port = PORT;
io.on('connection', (socket) => {
console.log('new connection made');
socket.on('subscribe', function (room) {
socket.room = room;
socket.join(socket.room, function() {
console.log('joined:' + room); // outputs joined: 1
socket.on('send-message', (data) => {
io.to(data.room).emit('message-received', data.message);
console.log("sent to room:" + data.room); // outputs sent to room: 1
});
});
});
});
server.listen(port, function() {
console.log('Server listening at port %d', port);
});
client.js上server.js
this.socket = io.connect('ws://IP:PORT');
this.socket.on('connect',() => {
console.log("connection made"); // it output connection made in console
this.socket.emit('subscribe', 1);
});
this.socket.on('message-received', (message: any) => {
console.log(message);
});
我曾尝试下面几个选项,但仍无法发出 '消息收到' 在客户端:
// io.emit('message-received', data);
// io.to(data.room).emit('message-received', {
// room: data.room,
// message: data.message
// });
// io.sockets.in(data.room).emit('message-received', {
// room: data.room,
// message: data.message
// });
//io.broadcast.to(data.room).emit('message-received', data.message);
使用带角度的最新socket.io库4
答
基于我对你的客户方和服务器端代码中看到的,我相信这个问题是在客户方代码...
在你的服务器上,“订阅”事件中的服务器也被监听“发送 - 消息'事件,你永远不会从客户端发出!
因此,如果您发出“发送消息”事件与数据(这应包括邮件)作为参数,只有这样,服务器会发出“消息收到”事件给客户..
希望这有助于!