Node.js 上传文件 demo，基于 Express 和 Multer 。
let express = require('express')
let multer = require('multer')
let app = express()
app.use(express.static(__dirname));
let storage = multer.diskStorage({
destination: function (req, file, cb) {
cb(null, 'upload/')
},
filename: function (req, file, cb) {
cb(null, Date.now() + '-' + file.originalname);
}
});
let upload = multer({storage: storage});
app.post('/upload', function (req, res, next) {
upload.single('file')(req, res, function (err) {
if (err) {
console.log('error', err);
return;
}
res.send(JSON.stringify(req.file));
console.log(req.file);
});
});
app.set('port', process.env.PORT || 9009);
app.listen(app.get('port'), function () {
console.log('http://localhost:' + app.get('port'));
});
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="renderer" content="webkit">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
<meta name="format-detection" content="telephone=no">
<title>Node.js upload</title>
<meta name="description" content="">
</head>
<body>
<form id="upload" method="POST" action="/upload" enctype="multipart/form-data">
<p>
<label for="file">File:</label>
<input type="file" name="file" required/>
</p>
<p>
<input type="submit" name="submit" value="Submit" />
</p>
</form>
<script src="http://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script>
<script>
$(function () {
$('#upload').on('submit', function (e) {
e.preventDefault();
var formData = new FormData(this);
$.ajax({
type: 'POST',
url: '/upload',
data: formData,
contentType: false,
processData: false
}).done(function () {
alert('Done');
console.log('done');
}).fail(function (err) {
console.log(err);
})
});
});
</script>
</body>
</html>
https://github.com/givebest/node-upload
npm install
node app
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