Setting a document root to your Node.js http server?
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26-10-2019 - |
سؤال
I just setup a basic node.js server with socket.io on my local machine. Is there a way to set a document root so that you can include other files. Ie. Below I have a DIV with a a background image. The path the image is relative to the location of the server, however this is not working. Any ideas? Thanks!
var http = require('http'),
io = require('socket.io'), // for npm, otherwise use require('./path/to/socket.io')
server = http.createServer(function(req, res){
// your normal server code
res.writeHead(200, {'Content-Type': 'text/html'});
res.end('<div style="background-image:url(img/carbon_fibre.gif);"><h1>Hello world</h1></div>');
});
server.listen(8080);
// socket.io
var socket = io.listen(server);
المحلول
For the background-image style, browser will create a entirely new HTTP Request to your server with path *img/carbon_fibre.gif*, and this request will certainly hit your anonymous function, but your response function only write back a div with ContentType: text/html regardless the req.pathname so that the image cannot be properly displayed.
You may add some code to your function like:
var http = require('http'),
io = require('socket.io'),
fs = require('fs'),
server = http.createServer(function(req, res){
// find static image file
if (/\.gif$/.test(req.pathname)) {
fs.read(req.pathname, function(err, data) {
res.writeHead(200, { 'Content-Type': 'image/gif' });
res.end(data);
});
}
else {
// write your div
}
});
server.listen(8080);
I'm not very familiar with nodejs, so the code above only demonstrates a logic but not the actual runnable code block.
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