Is there a reliable way to limit the size of a file upload via java servlet?

Question

I'm running tomcat and Java EE. I am using apache's FileUpload library to handle file uploads. This is working great actually except when a user tries to upload a large file. There is a way to set a file limit using FileUpload but the entire request still goes through and the browser hangs the whole time. Is there a way to block large requests from even going through? Also is there a way to check file size client side so I can cut off most requests before they start?

Answer 1

How about using a Jquery fileupload plugin

https://github.com/blueimp/jQuery-File-Upload

This allows you to limit the size at the client side and prevent upload before it leaves the client.