基于J2EE的电子商务系统的设计与实现

The Design and JAVA Realization of an Advanced Electronic Commerce System Based Three-tier B/S Pattern

文章以实际课题为背景开发。首先通过对B/S与C/S两种体系结构进行分析、比较,认为在实现相同功能的前提下,B/S结构的系统在可维护性、易使用性方面具有更大的优势,因其具有更低的总体拥有成本(TCO)。其次,三层B/S模式,由于将业务逻辑与数据逻辑分开,并将焦点集中于处理逻辑,故而可扩展性和可重用性好,特别适用于大型系统。最后,以J2EE为工具,分析并描述了三层B/S结构系统的实现逻辑。

The paper is designed and based on a real research project .At first, analyzing and comparing the two patterns,the paper point out that the B/S one has more advantages than the C/S one,especially in maintainability and workability even if when they realize the same function . This is the main reason why the B/S pattern cost less TCO （Total Cost of Owning） than the C/S one.Then,the three-tier architecture in which the business logic is aparted from the data one, can make developers focus on the business logic of the system itself, and with better expansibility and reusability, it becomes the best choice for those large-scale systems. At the end of this paper, the realizing process based on the J2EE platform is described detailedly.