ABSTRACT
With the rapid economic development and social progress， the network has been into people's daily lives and become an important part of people's lives.Internet chat tools also has become an important tool for the exchange of information，by an increasing number of Internet users favor At present the market has a lot of good chat tools，including a wide range of applications like Tencent QQ，MSN-Messager，Netmeeting，and so on.
This paper introduced in a J2EE platform chat system designed and implemented the entire process.Comparative analysis of the current epidemic through the development of technical and language，by the use of JSP technology and B / S structure，useing Eclipse development tools chat system solutions.The system includes chat rooms，forums and message boards， and other three elements to achieve a dynamic exchange of information management.The entire chat tools a user landing，user registration, landing detection，information changes to the user re-landing，administrators，and other functions，including prospects Show Management District and the background area.
