毕业论文：即时通讯软件设计与实现.doc

分类号：TP311.1 U D C：D10621-408-(2011)2301-0 密 级：公 开 编 号：2007121004 即时通讯软件设计与实现即时通讯软件设计与实现 系统采用C/S架构，基于.NET平台开发。由服务器端和客户端程序组成。采用TCP/IP通信协议，使用XML对通信报文进行封装，便于应用程序API调用，组装，解析XML报文。主要实现的是聊天软件的部分功能，即文字聊天、文件传输等功能，主要完成的任务包括服务器模块的设计、文字聊天和文件传输等功能。通过运行、测试与分析，该多功能聊天软件运行稳定、可靠，具有一定的实用价值。 关键词：聊天软件；文字聊天；文件传输；C#；XML报文 The Design and Implementation of Instant Messaging Software Abstract Network communication is the most common way of computer users to communicate, a variety of chat software is also emerging; service providers also offer a more feature-rich communications services. Chinas current Internet technology has entered a period of rapid development, instant communications tools as the mainstream of todays network applications is getting the favour of more and more people, peoples online life is becoming more colorful. Today the most widely used instant messaging tools, such as Tencents QQ chat software. The graduation project is to simulate the QQ chat software, including text chat, file transfer, communication and other functions. System using C/S structure, based on platform development. The client and server components. Using TCP/IP communication protocol and using XML to communication message, easy to encapsulate applications API calls, assembly, analytical XML packet. This software realizes the part of function of the chat software, which is text chat, file transfer and other functions, the main task of the module design, including the server ,text chat and file transfer etc. Through the operation, test and analysis, the multifunctional chat software operation is stable, reliable, and has a certain practical value. Key words: Chat software; text chat; file transfer; C#;XML目 录 论文总页数：28页 1 引言 1 1.1 课题背景 1 1.2 国内外研究现状 1 1.3 本课题研究的意义 2 1.4 本课题的主要工作 2 2 系统开发环境和关键技术 2 2.1 开发环境 2 2.1.1 硬件环境： 2 2.1.2 软件环境 3 2.2 关键技术 3 2.2.1 C#语言简介 3 2.2.2 XMPP协议 4 2.2.3 TCP协议和TCP/IP协议 5 2.2.4 Client/Server结构（客户端/服务器模式） 6 3 系统分析与设计 7 3.1 需求分析 7 3.2系统总体框架 7 3.2.1总体设计