Is there any good JAVA lib for playing with POST-GET requests?

Search for good JAVA lib for playing 开发者_开发技巧with POST-GET requests - Is there any such lib or how to play with POST - GETS from pure JAVA? How to create costume headers and so on.

I like to use Apache HttpClient. It has pretty much anything you'll need. I use it in production work to connect to REST services from our server. It can handle custom headers, cookies, authentication, etc.

all you need is java.net.URL to do basic stuff.