qq好友查询本科生毕业论文（设计）
论文（设计）题目：J  即时通讯系统的设计与实现
学  院 ：      电子信息工程学院       
专    业：      网络工程               

J  即时通讯系统的设计与实现
[摘  要]运用Internet和Java开发技术，采用C/S模式，建立一个基于应用的即时通讯系统。本系统实现了用户注册，用户登陆，分组管理，好友管理，查询用户，用户即时通讯，查看聊天记录等功能。用户注册是通过系统来添加新的用户；用户登录用来验证用户的信息是否合法；分组管理功能主要是对分组的管理，如添加分组、删除分组等；好友管理功能主要是对好友的管理，如添加好友、删除好友等；查询用户是查询所有已注册的用户以便加为好友进行通讯；用户即时通讯使成为好友的双方可以即时在线交流；查看聊天记录保存了与好友通讯的所有记录。
［关键词］即时通讯系统；C/S模式；TCP；UDP
J    instant messaging system design and Implementation
Abstract:The use of Internet and Java development technologies, using C / S mode, a real-time communication system based on application. The system implements user registration, user login, group administration, friends manage, query user, instant messaging, view the chat history. User registration is through the system to add new users; user login used to authenticate the user's information is legitimate; group management functions mainly for the management of groups, such as adding a group, delete group, etc.; friends management functions mainly for friends management, such as adding friends, remove friends, etc.; query the user is the query to all registered users to add as friends to communicate; users to instant messaging to become friends of the two sides can exchange real-time online; view chat history with a good save friends of the communication of all records.
Key words:Instant messaging system; C / S mode; TCP; UDP