校园拍卖网站毕业设计

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1、 摘 要 近年来，随着 Internet 的迅速崛起，互联网已日益成为收集以及提供信息的最佳渠道并进入传统的流通领域。于是电子商务开始流行起来，电子商务已经被越来越多的人所接受，在有些方面甚至已经取代了传统的商店。 网上竞标系统为传统交易的买卖双方提供了更广阔的商务平台，一方面让卖方发布信息，另一方面让社会各界有兴趣的买家来进行竞标。其开发主要包括后台数据库的建立和维护以及前端应用程序的开发两个方面。对于前者要求建立起数据一致性和完整性强、数据安全性好的库。而对于后者则要求应用程序功能完备 ,易使用等特点。 本文主 要包括了方案论证与系统开发工具，就是运用软件工程科学地分析与设计方法，通过需求

2、分析、概要设计、详细设计和调试测试等步骤，利用 PHP 作为 Web 开发环境、采用 MySQL 为后端数据库建立一个动态、交互式、具有在线竞标和结标处理且功能强大、界面友好的商务竞标系统。需求分析，就是是准确地确定 “ 为了解决所提出的问题，目标系统必须做到什么、做到什么程度 ” ，主要明确目标系统必须具备的功能、性能、安全性、可靠性、保密性、专用性等，规定开发所使用的标准和规范。系统设计，就是讲解数据库中各数据表的创建和逻辑结构。详细设计，就是讲 述网上竞标系统中几个主要功能模块的界面及部分代码实现。软件测试，就是 测试阶段的根本任务是发现并改正软件中的错误，目的是尽可能多的排除软件中的潜

3、在错误，最终把一个高质量的系统交给用户使用。 关键词 电子商务 ； PHP； MySQL； 网上竞标 Abstract In recent years, with the fast emergence of Internet, Internet has already become and collected and offered the information best channel and entered the traditional field of circulation day by day. Then e-commerce becomes popular, e-commerc

4、e has already been accepted by more and more persons, has even already replaced the traditional shop. The online competitive bidding system has offered the wider commercial platform to both parties of the traditional trade, on one hand let sellers release information, the buyer making the various ci

5、rcles of society interested on the other hand carries on competitive bidding. It develops two respects of main development including setting-up and maintenance and front application program of backstage supporters database. Demand to set up the consistency of the data and integrality the storehouse

6、of strong, data with good security to the former. Require to the latter the function of the application program is complete, apt characteristic of using etc. Mainly including the scheme is proved with the systematic developing instrument in this text, just use the scientific ground analysis of the s

7、oft project and design method, step of designing, designing and debugging testing in detail through the demand analysis, outline etc., utilize PHP as Web development environment, adopt MySQL to set up a piece of trends for the back end database, interactive and having online competitive bidding and

8、forming and marking dealing with and powerful, commercial competitive bidding system with friendly boundary plane. Demand analysis, confirm for solve the problem that put forward, goal what system must accomplish, what degree is accomplished accurate ,Define function, performance, security, dependability, privacy that the goal system must possess, special-purpose etc. mainly, stipulate that develops the standard and norm used. The system is designed, explain the establishment of every