摘 要
网络代理是一种通过中间服务器转发网络请求和响应的技术，在网络数据传输中扮演重要的角色。它可以有效地提高网络传输的安全性、可靠性和性能，并且在各种网络应用场景中得到了广泛的应用。本论文针对网络代理的设计与实现进行了研究。首先，介绍了网络代理的基本概念和工作原理，分析了当前常见的代理技术和应用场景。然后，提出了一种基于VC++6.0开发的网络代理设计方案，并详细讨论了代理服务器的实现过程和关键技术。其中，重点介绍了代理服务器的网络连接管理、数据传输处理和安全防护等方面的实现方法和技巧。
本文主要介绍基于VC++6.0开发的网络代理的设计与实现。首先，介绍了网络代理的基本概念和工作原理，分析了当前常见的代理技术和应用场景。然后，提出了一种基于VC++6.0开发的网络代理设计方案，并详细讨论了代理服务器的实现过程和关键技术。
其中，重点介绍了代理服务器的网络连接管理、数据传输处理和安全防护等方面的实现方法和技巧。
最后，通过实验验证了该代理服务器的性能和稳定性，结果表明该代理服务器具有较高的实用价值和应用前景。本文的研究对于网络代理技术的进一步发展和应用具有一定的参考价值和借鉴意义。
关键词：网络代理；代理服务器；数据传输；代理技术；C++
Abstract
Network proxy is a technique for forwarding network requests and responses through intermediate servers and plays an important role in network data transmission. It can effectively improve the security, reliability and performance of network transmission, and has been widely used in various network application scenarios. This paper studies the design and implementation of network agents. First, we introduce the basic concepts and working principle of network agency, and analyze the current common agent techniques and application scenarios.
Then, a network proxy design scheme developed based on VC + + 6.0 is proposed, and the implementation process and key techniques of the proxy server are discussed in detail. Among them, the implementation methods and skills of the network connection management, data transmission processing and security protection of the proxy server are mainly introduced. This paper mainly introduces the design and implementation of the network agent developed based on VC + + 6.0. First, we introduce the basic concepts and working principle of network agency, and analyze the current common agent techniques and application scenarios.
Then, a network proxy design scheme developed based on VC + + 6.0 is proposed, and the implementation process and key techniques of the proxy server are discussed in detail. Among them, the implementation methods and skills of the network connection management, data transmission processing and security protection of the proxy server are mainly introduced. Finally, the performance and stability of the proxy server are verified through experiments, and the results show that the proxy server has high practical value and application prospect.
The research in this paper has certain reference value and reference significance for the further development and application of network agent technology.
Key words: network agent; proxy server; data transmission; proxy technology; C + +
目 录
1绪论
1.1课题背景及意义
1.1.1选题背景
1.1.2选题意义
1.2国内外研究现状
1.2.1国内研究现状
1.2.2国外研究现状
1.2.3发展趋势
1.3系统需求分析
1.3.1需求分析
1.3.2技术可行性分析
1.3.3系统功能需求
1.4研究主要内容及研究方法
1.4.1研究主要内容
1.4.2研究方法
2理论基础
2.1网络代理
2.2目前的代理服务技术
2.3 Socket面向连接的编程模型
2.4 Winsock库
2.4.1 winsock的寻址方式
2.4.2字节顺序
2.5系统基本套接字调用
2.5.1创建和关闭套接字－socket()和closesocket()
2.5.2指定本地地址－bind()
2.5.3设置监听状态-listen()
2.5.4建立套接字连接－connect()和accept()
2.5.5收发数据-send()和recv()
3设计方案
3.1基本函数设计
3.2多线程流程
4网络代理的实现
4.1环境创建
4.2功能实现
4.2.1数据变量定义
4.2.2启动网络代理
4.2.3请求处理过程
4.2.4请求响应
4.2.5关闭服务器
4.2.6控制主函数
5测试结果
结 论
参考文献
致 谢
