毕业设计（论文）-基于java的聊天系统的设计与实现精选.doc

本科生毕业论文(设计) 基于java的聊天系统的设计与实现 姓　　名 　　号 专　　业 指导教师 年月日关键词： Abstract With the development of the Internet, instant messaging tool is favored by more and more user groups.IM (Instant Messenger, IM) refers to a kind of real-time communication service which allows users to send and receive Internet messages instantly.The biggest characteristic of Instant messaging is its immediacy, just communication online at the same time, both sides can realize to send the information to each other like multimedia phone, such as text, archives, sound and image.With the support of network environment, both communication sides can easily realize the information interaction,which can’t be restricted by physical distance.So instant communication system has a very important position in todays society. The paper discusses the main modules of the client and server side of the instant communication system detaily,studies the way of realization of each system module and the specific design, expounds the main functions of each module,and displays them by module flow chart.With strong real-time communication,the system adopts object-oriented and modular design method,mainly uses computer technology,such as the network communication technology, database technology and multithreading technology,and has realized the text communication,user group and other functions.The system is based on C/S architecture and MVC framework,uses Java language development,and realizes the multi-user real-time communication.The system designs and implements the user registration, login, the user list, multi-user instant messaging,etc.Based on the Swing,the system developes a complete graphical user interface(GUI).Through socket programming,the system achieves the functions of communication.On the basis of the above technology researches,this paper constructs the instant messaging system,which is designed for ordinary users at the LAN environment and can meet the basic communication requirements.At the same ti