基于会话状态的购物车系统

Shopping-Cart Design Based on Session State

购物车作为电子商务领域中广为使用的模块,它的设计好坏关系到整套系统的有效运行.购物车是系统与用户交互最多的模块之一,不管是从用户体验上还是从功能上,其影响力都是不可忽视的.但有时为了营造出更好的用户体验,会从结构上对于购物车进行一番调整以适应功能上的要求.虽然这种调整不是每次都是必须的,但其结果影响却是巨大,如果不能深入理解购物车背后的功能与原理就不能做出有效的调整,最后会导致系统性能变差.正是在以上需求前提下,对于购物车的几种设计方案进行了详细的对比、分析,从多个方面说明了购物车的设计原理.并且针对不同方案的优缺点及实际中遇到的一些问题提出了改进.最后还讨论了在日常使用中购物车的一些异常情况以及补救措施.

Shopping-cart is a very popular module in the field of E-commerce, its designing related to the entire system＇s effective operation. Shopping-cart, as the most used interactive module, whether from the aspect of user experience or functionality, cannot be ignored. Sometimes, in order to create a better user experience, some adjustments to the structure are made to accommodate the functional requirements. Although these adjustments are not necessary, it＇s very useful. Only understand the features and principles behind the system can build shopping-cart that meet the needs of most people, otherwise it may lead to poor performance to the whole system. In this context, this paper analyzes the pros and cons of different options, then put forward some improvements. At last, it talks about some exceptions during the daily use and gives a remedy.