我之前在Node项目上安装了socket.io，而不需要表达模板框架。
如果我添加这行代码：http.listen(3001, function() { console.log('listening on port 3001'); });然后访问localhost：3000我的应用程序套接字不起作用而 on localhost：3001我有套接字工作即可。我如何合并这两个？
socket.io.js:2 GET http://localhost:3000/socket.io/?EIO=3&transport=polling&t=LpQ6zKP net::ERR_CONNECTION_REFUSED
我正在尝试在快速框架中添加socket.io，如下所示：
const express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var expressValidator = require('express-validator');
var cookieParser = require('cookie-parser');
var session = require('express-session');
var passport = require('passport');
var LocalStrategy = require('passport-local').Strategy;
var bodyParser = require('body-parser');
var flash = require('connect-flash');
var multer = require('multer');
var upload = multer({ dest: './uploads' });
var mongo = require('mongodb');
var mongoose = require('mongoose');
var db = mongoose.connection;
var index = require('./routes/index');
var app = express();
var http = require( "http" ).createServer( app );
var io = require( "socket.io" )( http );
http.listen(3000, "127.0.0.1");
var httpk = require('http');
var nsp = io.of('/channel1');
var connectCounter = 0;
var interval = undefined;
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');
app.use('/js', express.static(__dirname + '/node_modules/bootstrap/dist/js')); // redirect bootstrap JS
app.use('/js', express.static(__dirname + '/node_modules/jquery/dist')); // redirect jQuery JS
app.use('/css', express.static(__dirname + '/node_modules/bootstrap/dist/css')); // redirect Bootstrap CSS
// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
//Handle express sessions
app.use(session({
secret:'secret',
saveUninitialized: true,
resave:true
}));
// Passport
app.use(passport.initialize());
app.use(passport.session());
// Validator
app.use(expressValidator({
errorFormatter: function(param, msg, value) {
var namespace = param.split('.')
, root = namespace.shift()
, formParam = root;
while(namespace.length) {
formParam += '[' + namespace.shift() + ']';
}
return {
param : formParam,
msg : msg,
value : value
};
}
}));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
//For flash messages
app.use(flash());
app.use(function (req, res, next) {
res.locals.messages = require('express-messages')(req, res);
next();
});
app.get('*', function(req, res, next){
res.locals.user = req.user || null;
next();
});
app.use('/', index);
function test() {
httpk.get("api-url", function(res) {
var body = '';
res.on('data', function(data) {
body += data;
});
res.on('end', function() {
var parsed = JSON.parse(body);
//console.log(parsed.data.product1);
var dataArray = [];
dataArray.push((parseFloat(parsed.data.product1) + Math.random() * 0.1 + 0.01).toFixed(2));
dataArray.push((parseFloat(parsed.data.product2) + Math.random() * 0.1 + 0.01).toFixed(2));
console.log(dataArray);
nsp.emit('live-quote', dataArray);
});
});
}
nsp.on('connection', function(socket) {
socket.on('pass_data', function(my) {
console.log(my);
});
//Make a http call
connectCounter++;
if (interval === undefined) interval = setInterval(test, 1000);
nsp.emit('live-users', connectCounter);
console.log('1 user connected, Total Joined: ' + connectCounter);
socket.on('disconnect', function() {
connectCounter--;
if (connectCounter <= 0 && interval !== undefined) interval = clearInterval(interval);
nsp.emit('live-users', connectCounter);
console.log('1 user disconnected, Total Left: ' + connectCounter);
});
console.log("total clients: " + io.engine.clientsCount);
});
// catch 404 and forward to error handler
app.use(function(req, res, next) {
var err = new Error('Not Found');
err.status = 404;
next(err);
});
// error handler
app.use(function(err, req, res, next) {
// set locals, only providing error in development
res.locals.message = err.message;
res.locals.error = req.app.get('env') === 'development' ? err : {};
// render the error page
res.status(err.status || 500);
res.render('error');
});
module.exports = app;
<title><%= title %></title>
<link rel="stylesheet" href="/css/bootstrap.min.css">
<script src="/js/jquery.min.js"></script>
<script src="/js/bootstrap.min.js"></script>
<link rel='stylesheet' href='/stylesheets/style.css' />
<meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0" >
<script src="/javascripts/script.js" ></script>
<script src="/socket.io/socket.io.js"></script>
<script src="https://code.jquery.com/jquery-1.11.1.js"></script>
<script>
$(function() {
var socket = io('/channel1');
var currentTime;
socket.on('live', function(msg) {
console.log("msg: "+msg);
});
socket.on('live-users', function(users) {
$('#total').text(users);
});
});
</script>
<!DOCTYPE html>
<html>
<head><% include partials/head.ejs %></head>
<body>
<% include partials/header.ejs %>
<div class="container" style="margin-top:20px;">
</div>
<% include partials/footer.ejs %>
<% include partials/jsdefaults.ejs %>
</body>
</html>
答案 0 :(得分：2)
看起来您使用express-generator来设置Express应用程序，在这种情况下，HTTP服务器将在bin/www中设置，socket.io服务器的位置也应该设置（因为你想在Express和socket.io之间共享HTTP服务器。）
默认bin/www包含：
/**
* Create HTTP server.
*/
var server = http.createServer(app);
您添加socket.io服务器的位置：
var server = http.createServer(app);
var io = require('socket.io')(server);
var nsp = io.of('/channel1');
nsp.on('connection', ...);