Question

我尝试使用NodeJS，Express ans socket.io

进行一些聊天

使用localhost，log4js进行调试我在本地工作正常，socket.io正常工作没有问题。

但是当我尝试将其部署在远程服务器上时，它无法正常工作。这是一个链接https://cryptic-fjord-64553.herokuapp.com/ Ofc，我用Google搜索，写了类似的主题，尝试了很多东西，但它没有用。

无法加载资源：服务器响应状态为404

engine.io-client：socket socket error {＆＃34; type＆＃34;：＆＃34; TransportError＆＃34;，＆＃34; description＆＃34;：404}

或

engine.io-client：socket socket error {＆＃34; type＆＃34;：＆＃34; TransportError＆＃34;，＆＃34; description＆＃34;：0}

我的服务器，app.js包括：

var express = require('express'),
app = express(),
logger = require('log4js').getLogger();
server = require('http').Server(app),
io = require('socket.io')(server),

当我试图在远程服务器（heroku）上部署我的应用程序时，

这个注释的块而不是server = ..和io = ..上面

/* 
app.use(function(req, res, next) {
    res.header("Access-Control-Allow-Origin", "*");
    res.header("Access-Control-Allow-Headers", "X-Requested-With");
    res.header("Access-Control-Allow-Headers", "Content-Type");
    res.header("Access-Control-Allow-Methods", "PUT, GET, POST, DELETE, OPTIONS");
    next();
});
var https = require('https'),
    socketio = require('socket.io'),
    server = https.createServer(app),
    io = socketio.listen(server, {log:false, origins:'*:*'});

app.set('port', (process.env.PORT || 5000)); 
*/

当我尝试在heroku上部署app时，我会评论server.listen .. block下面的

var pug = require('pug'),
port = 4000;

server.listen(port, '127.0.0.1', ()=>{
    var addr = server.address();
    logger.level = 'debug';
    logger.debug('listening on ' + addr.address + ':' + addr.port);
});

app.use(express.static(__dirname + '/public'));


app.get('/socket.io.js', (req,res)=>{
    res.sendFile(__dirname + '/node_modules/socket.io-client/dist/socket.io.js');
});

app.get('/socket.io/socket.io.js', (req,res)=>{
    res.sendFile(__dirname + '/node_modules/socket.io-client/dist/socket.io.js');
});


app.get('/jquery.js', (req,res)=>{
    res.sendFile(__dirname + '/node_modules/jquery/dist/jquery.min.js');
});
app.set('views', __dirname + '/views');
app.set('view engine', 'pug');

const amazingStuff = 'Its amazing stuff, ',
date = new Date;

app.get('/', (req,res)=>{
    res.render('pages/index', {
    title: 'main page',
    message: date,
    showChat: false
});

io.on('connection', (socket)=>{

socket.on('newUserJoin', (userName)=>{


    socket.session = {};
    socket.session.userName = userName;
    socket.session.address = socket.handshake.address;
    socket.session.id = socket.id;

    socket.broadcast.emit('newUser', socket.session);
    socket.emit('user', socket.session)
    socket.emit('userLisr', io.length)

    logger.info('user ' + socket.session.userName + ' / ip ' + socket.session.address)
    logger.info('user count: ' + io.engine.clientsCount)
    logger.debug(socket.session)

    var clients = io.sockets.connected,
        clientList = {};

    for (var i in clients){
        if(clients[i].session) clientList[i] = clients[i].session;
    }

    socket.emit('clientList', clientList);

})

//get a new message and share it to all users
socket.on('newMessage', (message)=>{
    socket.broadcast.emit('shareMessage', message)
})

})

app.listen(app.get('port'), function() {
   console.log('Node app is running on port', app.get('port'));
});

版本：

  "devDependencies": {
    "nodemon": "^1.11.0"
  },
  "dependencies": {
     "express": "^4.15.3",
     "jquery": "^3.2.1",
     "log4js": "^2.3.3",
     "pug": "^2.0.0-rc.3",
     "socket.io": "^2.0.3"
   }

client，main.js：

var socket = io();
//var socket = io.connect('https://cryptic-fjord-64553.herokuapp.com/');

和处理程序

这里是在html（pug）中添加脚本，首先在本地工作，评论的东西是我尝试在heroku上部署的尝试，但它不起作用。

script(src='/socket.io/socket.io.js')
//-script(src='/socket.io.js')
//-script(src='https://cryptic-fjord-64553.herokuapp.com/socket.io.js')

你无法打开上面的链接，看看控制台中发生了什么。没有关于客户端脚本的警告，我的意思是main.js文件，所以它可以连接到服务器，main.js知道什么是＆＃39; io＆＃39;。因此，似乎可以通过html和socket.io连接到服务器的链接。所以可能是服务器端app.js中的问题

如何强制它在heroku上工作？

nodejs + express + socket.io＆gt;远程服务器上的socket客户端连接问题

0 个答案: