The Design And Implementation Of Online Trading Platform Based On ExtJS And OSGi

With the rapid development of science and technology, the way of people’s thinking has also undergone great changes. Instead of the traditional way of shopping in the store, more and more people begin to enjoy shopping online.This system provides a robust platform for network selling, which is multi-level object-oriented, with reasonable division of authority and strong business logic.The system adopts the Spring MVC framework, using the ExtJS as JS framework and Oracle as database. It also use STS as the java development tools and Hibernate for data persistenceThe current issues of the B2C online market are deeply investigated based on the application of ExtJS firstly in this thesis. Furtherly, system solution including requirem_ent analysis, outline design and detailed design is proposed depending on the popular regulations of software engineering.The performance of the system is improved because of reasonable and well-formed database design. Meanwhile, the maintainability and ex pansibility of the system are strengthened by the muti-layers architecture of the system. The speed of the interaction between client and server is greatly increased due to the technology of asynchronous updating based on Ajax, which makes our systems of sign ificance in practice.The function of the system is reasonable. The system is divided into three parts. The first part is the management of the division of authority and the account, such as the management of various types of administrator and their registration,the general staffs of stores and their customers. This part should ensure a clear division of labors and make sure the accounts security. The second part is the management of the stores, such as the application and review of the stores; the add, delete and modify of the commodity type. Among them, the administrator of the Mall is responsible for checking shops.The management of Commodity type is dealed by the Tree component of ExtJS, which can well describe the level relations among the types. The third part is the management of commodity, including adding and deleting the information of commodities; the fuzzy query and display of goods; the adding of data dictionary and so on. The relationship between shop and specific commodity is one to many. The transaction based on the safe third-party online payment system, alipay.In addition to a variety of business can be handled, it is even more valuable to generate a variety of real-time statistical information according to the demand, For example, generate a data comparison chart within an interval according to the time, achieve generation of each region data according to space.System chart generation is the ultimate manifestation of the data collection and analysis of the underlying data. It is a very important part in software development.