node.js + express + socket.io无法将JavaScript文件加载到index.html中 [英] node.js + express + socket.io cannot load javascript files into index.html
问题描述
我正在开发应用程序，服务器目前正在建立并运行良好。
I'm developing an application and the server is currently set up and working well.
这是index.html，显示您访问服务器时：
This is the index.html that shows when you access the server:
<!doctype html>
<html>
<head>
<title>Socket.IO chat</title>
</head>
<body>
<script src="https://cdn.socket.io/socket.io-1.2.0.js"></script>
<script type="text/javascript" src="./client.js"></script>
<script type="text/javascript" src="./main.js"></script>
</body>
</html>
但是我收到404错误加载资源失败：服务器响应状态为404（没有找到）导入那些位于同一目录中的JavaScript文件时。
However I get a 404 error "Failed to load resource: the server responded with a status of 404 (Not Found)" when importing those javascript files, which are in the same directory.
这是我的服务器代码：
var app = require('express')();
var http = require('http').Server(app);
var io = require('socket.io')(http);
app.get('/', function(req, res){
res.sendFile(__dirname+'/index.html'); // DO I NEED TO SEND THE OTHER FILES HERE ASWELL?
});
io.on('connection', function(socket){
console.log('a user connected');
socket.on('disconnect', function(){
console.log('user disconnected');
});
socket.on('chat message', function(msg){
console.log('message: ' + msg);
io.emit('chat message', msg);
});
});
http.listen(3000, function(){
console.log('listening on *:3000');
});
谢谢！
推荐答案
如果HTML文件位于与脚本相同的路径中，则使用相对路径，如 src =main.js。如果它仍然不起作用，也许是Express'错误。
If the HTML file is located in the same path as the scripts are, then use relative path like src = "main.js". If it still doesn't work, maybe it's Express' fault.
将以下代码添加到您的 app.js ：
Add the codes below into your app.js:
app.use(express.static(__dirname + '/scripts'));
脚本可以从相对于 / scripts main.js http：//yourdomain/script.js 而不是从 http：//yourdomain/scripts/main.js 。
抱歉我的英文。
And the scripts can be accessed from the path relative to /scripts- e.g. main.js from http://yourdomain/script.js but not from http://yourdomain/scripts/main.js.
Sorry for my English.
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