Gmail : Retrieve the mails from specific sender. API..?

I am stuck in the middle of a project and need help retrieving the mails only from a particular sender in Gmail. Can anyone suggest some API to do s开发者_如何学JAVAo OR can share any script to get it from the server..??

It would be very Helpful. Thanks in advance guys..

---

just enable the IMAP, the gmail IMAP servers support server side search. Then take whatever IMAP library in language of your preference and download search results :)