[优秀毕业设计精品] 基于.NET的即时通讯系统.doc

毕业设计论文题目基于.NET的即时通讯系统学生姓名专业班级安工计032所在院系软件学院指导教师职称副教授所在单位嵌入式系统教研室完成日期年月日2008届本科生毕业设计1摘要自从1996年第一个即时通讯软件ICQ出现以来，即时通讯InstantMessaging这种以Internet网络及其他有线、无线网络为基础的，以实时方式与其他在线用户交流、传递信息的通讯方式，受到了人们的普遍欢迎。即时通讯系统均采用了客户机/服务器C/S模式，在此模式下，服务器无疑是处于一个核心地位。因而，本文围绕即时通讯系统服务器端软件开发这一核心展开的。首先，研究了当今流行的各种即时通讯软件，对其进行分析，确定了基于.NET框架下实现即时通讯系统的功能分析，提出了不同的即时通讯服务器的架构。其次，围绕即时通讯的基本文字交流（在线文字传输），注册，登录，添加好友，删除好友等功能，设计了不同的模块来实现上述功能。通过TCP/IP协议发送和管理消息。使用SQLserver2005数据库对用户信息以及通讯信息等进行及时保存。综上所述，本论文致力于研究基于.NET技术基础，一套简单、安全、易于使用的网络即时通讯系统。关键词即时通讯系统服务器在线消息传输2008届本科生毕业设计2AbstractSinceICQISeekyou,thefirstInstantMessagingsoftware,wasbornin1996,InstantMessaging,therealtimecommunicationmethodthatisbasedonInternetandotherwiredorwirelessnetworksandcaninterviewandtransferinformationwithotheronlineusers,hasbeenwelcomedpopularly.TheinstantmessagingsystemhasadoptedtheclientandserverC/Smode.Underthismode,theserverisundoubtedlyinakeyposition.Thisthesisisjustlaunchedaroundthiscoreofsoftwaredevelopmentofserverendoftheinstantmessagingsystem.Firstofall,Istudiedvariouskindsofpopularinstantmessagingsoftwares,analyzedthem,andthenconfirmedthatthefunctionofInstantMessagingsystemon.NETanalyses,andputforwardtheframeworkoftheserverdifferentfromthecommoninstantmessagingsystem.Secondly,basedthefunctionofonlinemessagetransferring,registeringusers,login,addingfriendsanddeletingfriends,designdifferentmodulestoachievethem.SendingandmanaginginformationbyTCP/IP.AndpreservinguserinformationandtimelycommunicationinformationbySQLserver2005database.Inthisthesis,arealtimenetworkcommunicationsystemwhichissimple,secureandbasedon.NETisinvestigated.KeywordsInstantMessagingsystemServiceOnlinemessagetransfer2008届本科生毕业设计3目录第一章绪论............................................................................................................................41.1InstantMessenger软件的意义..........................................................................................41.2国内外主流InstantMessager软件的分析......................................................................41.3本文内容安排..................................................................................................................6第二章即时通讯系统的技术背景.......................................................................................72.1客户机/服务器模型.........................................................................................................72.2.NETFramework简介.......................................................................................................82.3VisualStudio2005简介....................................................................................................102.4Windowssocket编程原理................................................................................................112.5SQLserver简介...............................................................................................................182.5本章小结........................................................................................................................20第三章SQL语言与ADO...................................................................................................213.1常用SQL语句简介.......................................................................................................213.2ADO简介........................................................................................................................223.3本章小结........................................................................................................................23第四章系统详细设计..........................................................................................................244.1系统的总体设计............................................................................................................244.2数据库详细设计............................................................................................................244.3服务器端详细设计........................................................................................................254.4客户端详细设计............................................................................................................34本章小结..............................................................................................................................38第五章系统测试..................................................................................................................395.1客户机/服务器系统软件测试特点...............................................................................395.2测试过程........................................................................................................................40本章小结..............................................................................................................................41结束语......................................................................................................................................43参考文献..................................................................................................................................45