Make upload and download file facility in a project. Where do I start?

Question

I've test papers(.xls) in jsp to be uploaded and students will be submitting back after solving them.

How do I make it possible? I have no idea of uploading files and downloading. What would I look for then?

Answer 1

The Internet is filled with examples of how to upload files using JSP/Servlets and this site also has some nice questions and answers regarding this.

So here are few sites which explain how to proceed:

1. How to upload using JSP/Servlets: This question uses the Apache Commons file upload api
2. Here is a nice tutorial to explain how to handle file upload with apache commons.
3. Another example using the Apache Commons file upload.
4. Did I say there are many examples: Here is another one and whats more they also have the full source code download here.

Phew! So many examples. Let me know if you are still looking for something specific.

The first and last link is a really good starting point.