在Linux服务器上的项目文件夹中使用node js express和socket.io创建套接字连接时出错
[英]Error creating socket connection using node js express and socket.io in my project folder on linux server
问题描述
I am trying to create socket connection using node js express and socket.io in my project folder which is on Linux(Ubuntu) server. 
我正在尝试在Linux（Ubuntu）服务器上的项目文件夹中使用node js express和socket.io创建套接字连接。 After installing nodejs, npm, socketio and express I am unable to create socket connection. 安装nodejs，npm，socketio和express之后，我无法创建套接字连接。 Tried to run node app.js but no output comes. 试图运行节点app.js，但没有输出。 Installation is done following the tutorial http://www.programwitherik.com/getting-started-with-socket-io-node-js-and-express/ . 按照教程http://www.programwitherik.com/getting-started-with-socket-io-node-js-and-express/进行安装。 I am including code for app.js and index.html 我包括app.js和index.html的代码
//app.js
var express = require('express');
var app = express();
var server = require('http').createServer(app);
var io = require('socket.io').listen(server);
io.on('connection', function(client) {
console.log('Client connected...');
client.on('join', function(data) {
console.log(data);
});
});
app.use(express.static(__dirname + '/node_modules'));
app.get('/', function(req, res,next) {
res.sendFile(__dirname + '/index.html');
});
server.listen(8000);
//index.html
<!doctype html>
<html lang="en">
<head>
<script src="http://example.abcd.net/socket-app/jquery/dist/jquery.js"></script>
<script src="http://example.abcd.net:8000/socket.io/socket.io.js"></script>
</head>
<body>
<h1>Hello World!</h1>
<div id="future"></div>
<form id="form" id="chat_form">
<input id="chat_input" type="text">
<input type="submit" value="Send">
</form>
</body>
</html>
<script>
var socket = io.connect();
socket.on('connect', function(data) {
socket.emit('join', 'Hello World from client');
});
</script>
example.abcd.net is the sample address in which socket-app is the folder which contains app.js and index.html file. example.abcd.net是示例地址，其中socket-app是包含app.js和index.html文件的文件夹。 Also how to run it on browser as every tutorial runs it using localhost. 以及每个教程使用本地主机运行它时如何在浏览器上运行它。 Similar code works fine when installed on local machine. 将类似的代码安装在本地计算机上时可以正常工作。
1 个解决方案
解决方案1
0 2018-06-07 11:30:06
Try using io.connect(" http://example.abcd.net:8000 "); 尝试使用io.connect（“ http://example.abcd.net:8000 ”）; instead of io.connect(); 而不是io.connect（）;
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