nodejs，socket.io和expressjs无法连接

Question

I have a folder structure like: 我有一个类似的文件夹结构：

socket
  - project
    - main.js

  -node_modules
    - node_modules_folder_here

  - text.html

My main.js file looks like: 我的main.js文件如下所示：

var app = require('express')();
var http = require('http').Server(app);
var io = require('socket.io')(http);

app.get('/', function(req, res){
    console.log("inside")
    res.send('<h1>Hello again</h1>');
});

io.on('connection', function(socket){
    console.log("socket")
    console.log('a user connected');
});

http.listen(3000, function(){
  console.log('listening on *:3000');
});

I am running the server using node main.js and everything works fine My test.html looks like: 我正在使用node main.js运行服务器，并且一切正常，我的test.html看起来像：

<body>
<h3>Hellooww world</h3>
<script src="/socket.io/socket.io.js"></script>
<script type="text/javascript">
  var socket = io();
  console.log("check io", socket)
</script>
</body>
</html>

My package.json like: 我的package.json像：

"author": "",
  "license": "ISC",
  "dependencies": {
    "babel-core": "^6.24.0",
    "babel-loader": "^6.4.0",
    "express": "^4.15.2",
    "node-fetch": "^1.6.3",
    "promise": "^7.1.1",
    "socket.io": "^1.7.3",
    "webpack": "^2.2.1",
    "xmlhttprequest": "^1.8.0"

I simply followed socket.io tutorial and got this error 我只是遵循了socket.io教程，却遇到了这个错误

GET file:///socket.io/socket.io.js net::ERR_FILE_NOT_FOUND
test.html:10 Uncaught ReferenceError: io is not defined

Also what if I am using this socket server for another project how to call it ? 如果我将这个套接字服务器用于另一个项目该怎么调用呢？

What is the issue here ? 这是什么问题？ I am simply following the socket.io tutorial and what am I mising here ? 我只是在遵循socket.io教程，在这里我在想什么？ What is wrong and why ?? 有什么问题，为什么？

Answer 1

Your browser is looking for file:///socket.io/socket.io.js , the fact that it assumed file:// protocol makes me think that you are opening your html file directly. 您的浏览器正在寻找file:///socket.io/socket.io.js ，它假定为file：//协议，这一事实使我认为您正在直接打开html文件。 You also have a missing quote after that src string. 在该src字符串之后，您还会缺少引号。

Make sure you are loading localhost:3000 . 确保您正在加载localhost:3000 。

nodejs，socket.io和expressjs无法连接

问题描述

1 个解决方案

解决方案1
0 2017-03-17 17:54:54

nodejs，socket.io和expressjs无法连接

问题描述

1 个解决方案

解决方案1 0 2017-03-17 17:54:54

解决方案1
0 2017-03-17 17:54:54