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[英]setup nginx ssl nodejs+express socket.io angularjs
[英]How to setup Socket.io for listen separate pages with Express NodeJS
我有下一個server.js
文件結構,其中有兩個頁面,僅對於最后一個/chat
頁面,我需要通過Socket.io庫實現事件偵聽器:
'use strict'
const app = require('express')();
const server = require('http').Server(app);
const io = require('socket.io')(server);
const index = require('./routes/index');
const chat = require('./routes/chat');
app.use('/', index);
app.use('/chat', chat);
// sockets.io code part start...
app.use((req, res, next) => {
res.locals['socketio'] = io;
next();
});
// sockets.io code part finish...
const port = process.env.API_PORT || 8989;
server.listen(port, () => {
console.log(`Server running on port ${port}`);
});
我從這種結構中得到什么? 我的server
通過localhost:3000
和localhost:3000/chat
監聽站點上的所有輸入,這是錯誤的。 所以,我想我需要實現我的代碼部分,以響應處理特定路由/chat
中的sockets.io
事件。
我的路線系統中有下一個chat.js
文件:
const express = require('express');
const router = express.Router();
router.use(function timeLog(req, res, next) {
console.log('Time: ', Date.now());
next();
});
router.route('/chat')
.get((req, res) => {
let messages = [];
let userCounter = 0;
let users = [];
const io = res.locals['socketio'];
io.on('connect', (socket) => {
console.log('Connection established!');
socket.on('new user', (message) => {
userCounter++;
users.push(userCounter)
console.log('New user is in! Count of users online:', users)
});
socket.emit('new connect', messages);
socket.on('message data', (message) => {
console.log(message);
messages.push(message);
io.emit('New message:', message);
});
});
res.json('Hello on the Chatpage!');
});
module.exports = router;
在我的情況下,如何僅針對/chat
頁面實現sockets.io,而不能在server
文件中全局調用socket.io library
呢?還是不可能? 我需要任何幫助...
謝謝!
您可以通過以下方式分離與套接字相關的代碼:
==> app.js
var express = require('express');
var socket = require('./socketServer');
var app = express();
var server = app.listen(3000, function () {
console.log('Listening on port 3000 ...');
});
socket.socketStartUp(server);
module.exports = app;
==> socketServer.js
var io = require('socket.io')();
var socketFunction = {}
socketFunction.socketStartUp = function (server) {
io.attach(server);
io.on('connection', function (socket) {
console.log("New user is connected with socket:", socket.id);
})
}
module.exports = socketFunction;
您還可以在下面的鏈接中檢查具有套接字功能的節點API啟動代碼:
希望這個答案對您有幫助
相應地更新代碼:
// Declare socket.io
const io = require('socket.io')(server);
// Set middleware
app.use((req, res, next)=>{ res.locals['socketio'] = io; next(); });
// Later in a chat route
router.get('/chat', (req, res, next)=>{
const io = res.locals['socketio']
});
希望這可以解決您的查詢。
問題是您必須將HTTP連接升級為websocket連接,因此仍需要在主頁中使用socket.io。
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