这是一个基于AJAX的聊天室程序。它在DWR例子的基础上加以改进增加一些新的功能包括emoticon(表情),bbcode,消息持久化,粘性信息,自动分解url和image链接。-This is an AJAX-based chat room procedures. DWR examples it be improved based on the increased number of new features include emoticon (expression), bbcode, message persistence, sticky information, automatic decomposition url and image links.