Simulation System Of On-line Shopping

E-commerce dates back to the sixties and developed in the nineties. Its development is the outcome of the more and more mature network technology. It has made a new economic operating pattern under which many aspects of social life will be changed fundamentally. E-commerce represents the development direction of the future methods of conducting trade. The on-line shopping system developed by this paper uses three-level structure on the basis of Web, that is, browser-web, server and DB server. The advantage of three-level structure lies in the fact that web server can control the access and cooperate with the renewal of the database. Besides web server can use a conveniently used high-level API which can be changed to the lower level transfer by the web server. The important conditions on which e-commerce came into being and develops are the followings. The widespread use of computer provides the basis for the application of e-commerce. The prevalence and maturity of network provide its application qualification. The popularization of credit card provides an important means for on-line payment in e-commerce. The making of the electronic security transaction agreement provides a key secure environment. The government's support and promotion provides favorable support for the development of e-commerce. E-commerce derived from electronic commerce with its abbreviation EC. Just as its name implies, its contents contain two aspects. One is electronic mode. The other is business and trade activity. E-commerce refers to the use of this simple, fast and low-cost electronic communication method to conduct various business and trade activities while the selling party and buying party don't meet each other face to face. Analyzed from the electronic angle, e-commerce can be fulfilled through many electronic communication methods. E-commerce which people discuss nowadays is achieved mainly by EDI and Internet. Especially as the Internet technology becomes more and more mature, the real development of e-commerce will base itself on it so that some people call e-commerce IC (Internet Commerce). Analyzed from the angle of trade activities, e-commerce can be carried out in many taches. Accordingly e-commerce might be divided into two levels. The lower one includes electronic market conditions, electronic trade, electronic contract, etc. The most integral and the highest level e-commerce should be the one in which all the trade activities can be done by using internet, that is the full on-line realization of information flow, merchandise flow, capital flow and partial logistics. In another word, you can find customers, hold trade talks, order goods, pay on-line, make out an electronic invoice, apply to customs and pay rate electronically all through the Internet. World trade organization e-commerce report also defines it as the process of producing, advertising, marketing, selling and circulating goods through telecom network. The United Nations OECD defines e-commerce as the merchandise transaction that happens on an open network including B2B,B2C. The reason that e-commerce on the basis of internet appeals so much to enterprises lies in its following advantages over the e-commerce on the basis of DEI. Its cost is low, its coverage is wide, its function is all-round and its usage is flexible. It can be established quickly, advertise goods and services to potential clients all over the world in the virtual network space and set up good enterprise image. It breaks the limitation of time and space and makes the global expansion no longer the monopoly of large multinational corporations. This makes small enterprises favorably competitive and they can enter international market. It can lower enterprise's cost in purchasing, marketing and blindly looking for clients and improve the enterprise's competitive power. The shopping system introduced in this paper is developed by JSP. JSP is a dynamic web page technology standard advocated by SUN Company and set up by some companies. It inserts script codes (mainly Java) into the expansion of HTML label to form a JSP web page (expansion name is .jsp.). The script code is handled at the Server side. What is different is that it gives up the common interpretation execution method to handle script but uses a new method by which codes are transferred and compiled first and then executed, i.e. compiling execution. The characteristics of JSP are the following. The creation and display of contents are separate, reused components can be created, labels are used to simplify the development of web page, the internal script language is Java. Therefore JSP web page has all the advantages of Java technology such as sound memory management and security and Java's characteristics. "Write once, run anywhere". Developers can use server and tools chosen by them. Changing tools or duplicating does not influence the present application. Besides the above characteristics, JSP has other appealing...