Real-time web, what framework to use

Pardon me for beginner's question in web, might be vague. Context: I have a smart-phone app similar to Uber (you get the idea), so I need to build a web dashboard to see what's going on, who is serving who in real-time. I'm wondering what web framework to use. If you don't have a framework name, then what language best serve that purpose. I've heard some recommendation like NodeJS, but would like to hear more.

Btw, our back-end server is using Java, but it seems like a pain to use Java for front-end.

Thanks.