| In the late of 1990s, the popularization of computer and Internet provided enterprises technical basis to explore the new control and manage pattern. The enterprises built up the inside network and connected it to the internet, and realized the exchange of information with the outside. Therefore, the network marketing is forming. People's demand for information and new products has urged their web shopping desire. Since there existing the needs and supplies in the net market, the first generation of Electronic Commerce pattern—business to consumer comes into being (B to C). In the 21st century, electronic commerce, together with the maturity of IT, is evolving gradually and becoming the core in the internet economy. The development of computer, network communication, IT, payment technology and security technology, the popularity of computer and the infrastructure construction of network application provide hardware and security for E-commerce. They are the hardware basis of E-commerce development. Electronic Commerce law is the software basis of E-commerce development and serves as the law guarantee. In the process of E-commerce development, people realize the online shopping breaks out the shopping boundary and enjoy the rapidness, security and price advantages. So the number of on-line shopping is growing gradually. The maturity of network infrastructure and the growing desire push the development of E-commerce and the construction of business web further.In the tradition economic mode, people tire themselves shopping in the market, and the enterprises have to negotiate surround the table for winning a contract. Now people can browse the network, compare the products and select the proper things at home. The process is comfortable and relaxed. The enterprises can also negotiate, place an order, accept an order and bring themselves in front the world through network and network shop. Besides of these, consultant and negotiation, payment, operation seeking, dealing management, electrical customs declaration, and electrical taxes paying are all fulfilled through the internet. E-commerce not only changes the enterprises activities of manufacture and management, but also changes people's ways of life, culture and education and government function. It brings man-kind into the information society.Online bookstore is a concrete form of Electronic Commerce. It solves the online sales problem of the tradition bookshop. The reader can get all kinds of services on book information on line through this system, can get considerable book sending by clicking the mouse. The website handling crew can also manage the personnel, commodity and orders conveniently through data base administration interface, and make statistic analysis on the sale condition. Therefore, online bookstore is a system of the information collection, spreading, storing, handling and upholding on the internet. It effects the sale of books conveniently and rapidly with the help of its clients managing, commodity handling, business settling and sales counting functions.The main purposes of setting up online bookstore in the homeland are: benefit from book selling, make money from absorbing advertisement like Amazon.com, follow the trend of E-commerce and so on. Among them, the first two account for great majority. Compared with the ideal of online bookstore—Amazon.com, inland online book stores are complicated, unreliable and short of standard. The reality also proves that the online book store is far from its anticipation. Some of them have a little visiting number, some of them have a large number but transaction concluding is so limited and internet advertisement is not widely accepted. In general, the buyer and the seller's rights are not guaranteed owing to its ambiguity and lack of standard. In order to perfect the inland bookstores, it is necessary to solve the following problems: first, provide the online payment by common credit card and settle accounts easily between banks. Second, build up universal and authorized CA identification to settle the security problem. Third, establish an efficient book sending system.Comparing with other existed online bookstore, the author designs a kind of B/S based online bookstore system on careful study of the user-centered programming thought and the programming technology such as Java, Jsp. In the design, the author analysis the concrete needs for the bookstore managing crew and the detailed procedure of book selling. The system realizes its function through the design of system function, data base and every function module. It has the following characters:1. Modularization of interface: the system applies the idea of modularization on the design of interface. It collects many common parts into one module, such as, head of leaf, end of leaf and navigation strip. So in the process of exploring, there is no need to rewrite the same part on different leaves. Open it by a simple statement and reuse this part. This character greatly improves the exploring efficiency.2. Three layers of structure design: Adopt three layers of structure design. The program logical structure divide into the layer of user interface, business logical dealing layer and the layer of date base store. The three layers are independent in their real physical structure. The business logical dealing effects by JavaBeans. The user interface separates from business logic. The system security, uploading, repeated using and expending are largely improved. Through this three layers structure, the user interface first sends a request to business layer by the unified connection. The business layer deals with the request by its own logical rules and then enters into data base handling. At last, the data returned by data base in the classified form goes back to the user interface. So there is no need to know the data base structure for the user interface. The user interface only needs to ensure the connection with business interface. The structure increases the security of the data base to some extent, and at the same time, lower the request to the explorer of user interface for no data base work at this layer.3. The data is returned through JavaBean in the form of returned object. The data in the class can be stipulated to be visited or only read, etc.. So the data security is improved again by this packed data.4. User-centered design: the system packages the users and the books into relative class, and each class has their own operating class. The design improves the data base handling security, and extends the program. 5. Personification design: another highlight of this system lies in its clear navigation. The customers will not lose their ways no matter where they are.Finishing this system, the author made some tests on the application of book selling, the rate of this system and the capacity of system load. These tests prove the system can satisfy the daily work of bookstore managing crew on the whole. The rate of system is acceptable, but declines a lot under too much load. The code needs perfection to realize the fractional dealing of the system. |
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