基于CS结构的即时通信系统的设计与实现 毕业论文+开题报告+外文翻译+答辩PPT+设计源码

Abstract

This graduation is a practical LAN instant messaging software for enterprises. Firstly, the feasibility of the system is analyzed, and the feasibility of system development is determined. Then the final function of the system is determined through the requirement analysis, and the background database system used in this system is determined to be MySQL, and the database in the system is designed. The system adopts the most popular development tool VC language to develop. Among them, the network communication part adopts the popular TCP/IP protocol, and the program adopts the typical C / S (client / Server) mode. The reasonable allocation of Client (client) and Server (server) can greatly reduce the communication overhead of the system and make full use of the advantages of the hardware environment at the two ends of C / S. The program uses Socket socket for network communication module design, interface part uses GUI lightweight control, can be the system controls on each platform has the same interface, achieved a good interoperability. The system adopts modular design and top-down development mode.

Keywords: instant messaging；VC；C / P S mode；Socket programming

目 录

摘 要 I

Abstract II

目 录 III

1 绪 论 1

1.1  课题的背景及意义 1

1.2  课题的国内外研究现状 1

1.3  课题研究的主要内容 2

1.4  论文的组织结构 2

2 网络即时通信软件开发的相关技术 4

2.1  异步通信技术 4

2.2  C/S编程模型 5

2.3  Windows Sockets简介 6

2.4  MFC Windows Socket类 7

2.4.1  CAsyncSocket异步类 7

2.4.2  CSocket类 7

2.5  MFC多线程编程技术 8

2.6  SQLite数据库 9

3 基于C/S结构的即时通信系统开发的系统需求分析 11

4 基于C/S结构的即时通信系统开发的系统详细设计 14

5 基于C/S结构的即时通信系统开发的系统实现 19

结 论 26

致 谢 27

参考文献 28