[Java] HTML5 Long Poling 푸시서버 (push server) 구현

Homepage : http://jwebsocket.org/

Spring Long Polling Server : http://blog.springsource.org/2012/05/16/spring-mvc-3-2-preview-chat-sample/
                           https://github.com/rstoyanchev

참고 Ajax Push Engine : http://www.ape-project.org/


Push Server 구현 방식
1. Hidden IFrame
2. polling - Ajax
3. Long polling - Ajax (Comet)
4. SSE (Server-Send-Event)


WebSocket과 Async : https://www.slipp.net/wiki/pages/viewpage.action?pageId=14549157