这是一套居于Applet的聊天室的J2EE应用，稍加改进就可以改制为B/s模式的在线交流工具，像IBM的sametime（不过没有视频哦）-This is a live chat room Applet J2EE applications, little improvement can be converted into B / s mode of online communication tools, like IBM's sametime (But oh, no video)