since uploading file with progress can not be done in all browser with pure js,
i want to give jquery file upload a shot，but the doc is really not good ,
so can anyone help me, or do u have any good tutorials?
Have a look at my example. It shows how to upload files with express and display a progress bar. A demo is here
http://express-upload-progress.herokuapp.com/
and the source code here
https://github.com/zeMirco/express-upload-progress
It is not that hard to upload files with express!
refer this u will get a better idea,
http://www.hacksparrow.com/handle-file-uploads-in-express-node-js.html
Refer to this example:
https://github.com/visionmedia/express/blob/master/examples/multipart/index.js
Link gotten from this question:
Upload file using NodeJS and node-formidable
Which came from this google query:
https://www.google.cl/search?q=expressjs+formidable&oq=expressjs+formidable
Formidable is the module used to handle file uploads.
Try this middleware https://github.com/aguidrevitch/jquery-file-upload-middleware
I found it really easy to setup & it has a lot of functionality built in.