1、 基于局域网的信息收发系统的设计与实现基于局域网的信息收发系统的设计与实现 摘摘 要要 网络通讯在当今已经不算新鲜事物, 但大多数网络通讯都需要借助Internet 上的服务器,这就给那些具有大规模内部网络的用户造成了许多问题,如浪费网 络资源、遭遇到网络攻击、传播的病毒、破坏防御系统等等。由于互连网上的网 络通讯工具给企业内部信息交流带来了不便, 所以为了方便内部网络的用户之间 的沟通,需要开发一个基于局域网的信息收发系统的即时通讯工具,实现在内部 网络中进行信息的交流。本课题设计主要针对局域网通讯而开发设计的,采用的 是 C/S 构架,利用 Delphi 编程工具来实现单播、广播以及在线用
2、户显示和查看 历史记录的功能,并借助一些网络通讯组件,成功的实现了在局域网上的即时通 讯。本论文共分为六部分。第一部分是课题的背景及研究意义;第二部分是所运 用的理论基础知识;第三部分是本系统的需求分析;第四部分是系统结构和模块 设计;第五部是实施和测试情况;最后是本设计的结论总结及部分参考文献。 关键词关键词:即时通讯;C/S 构架;单播;广播;历史记录 The Design and Implementation of Receiving and Sending Information System Based On LAN Abstract The network communicatio
3、n in already did not calculate the new things now, but the majority network communication all needed to draw support from on Internet the server, this gave these to have the large-scale internal network user to create many problems, like waste network resources, bitter experience to network attack,
4、dissemination virus, destruction defense system and so on. Because on the interconnection network communication facilities the interior communication have brought inconveniently for the enterprise, therefore in order to facilitate internal network between users communication, needs to develop one based on the local area network information receiving and dispatching system instant message facilities, realizes carries on the information in the internal network the exchange. This topic design