点对点通讯软件的设计与开发大学学位论文.doc

摘 要 随着计算机网络技术的快速发展，人们的交流方式越来越多，传统的通信方式在速度和可靠性方面已经很难满足人们的需要，即时通信系统已经越来越受欢迎。同时，即时通信系统对现代企业也有着重大意义，它为诸企业开拓了网络应用的新领域。自从它诞生以来，以实时交互、资费低廉等优点，受到广大个人用户的喜爱，已经成为网络生活中不可或缺的一部分。本着学以致用的原则，本人开发了这套多用户网络聊天室系统，以满足网络用户的通讯需求。该系统具有操作简单、界面友好、功能丰富等优点。它采用Eclipse为基本开发环境，用java语言进行编写，开发中充分使用了计算机网络编程的基本理论知识，如TCP/IP协议、客户端/服务器端模式（Client/Server模式）、网络编程、JDBC数据库编程技术等。本论文就系统的开发过程做了详细的介绍，并对系统的原理、总体设计等方面做了深入细致的讨论。 关键词:聊天室 Socket Java JDBC 网络编程 Abstract Along with the rapid development of computer network technology, the ways of people?s communication are increased rapidly. The traditional means of communication has become very difficult to meet peoples needs in speed and reliability. Instant communication system has become the new darlings of the people. Meanwhile, Instant communication system is also of great importance to the modern enterprises. It exploits a new domain for the enterprise. It has been enjoyed by the majority of individual users for its real-time interaction between the advantages of low rates since its bored. It has been an integral part of network life. In apply of the principle of practice, I developed the set of multi-point chatting system to meet the network users needs of communication. This system has some characteristic as follows : simplify operation, friendly interface, single function. The basic development environment with Eclipse, written with java language, development of computer network programming using the basic theory of knowledge, such as TCP / IP protocol, client/server mode (Client/Server mode), network programming design method.This paper introduced the process of the systems development in detail, and deeply discussed the principle of system、collectivity design. Keywords: Chatting room SocketJava JDBC Network programming 目 录 1.前言 6 1.1 开发背景和意义 6 1.2 可行性分析 6 1.2.1 技术可行性 6 1.2.2 经济可行性 8 1.2.3 操作可行性 8 2.相关原理技术简介 9 2.1 Java语言简介 9 2.2 JDBC介绍 9 2.3 SQL Server简介 10 3.系统需求分析 13 3.1 业务需求 13 3.2 功能需求 13 3.3 可靠性需求 14 3.4 性能需求 14 4.多点聊天通信原理 15 4.1.套接字通信 15 4.1.1 客户