Design And Implementation Of Second-hand Goods Network Pre-Trading System For Campus Based On J2EE

Currently, information technology has been widely used in all aspects of production, distribution, consumption and other areas of social life. Information technology promotes the development of e-commerce rapidly in China and promotes the awareness of applications of the whole society. The rapid development of e-commerce led to the economic development of china and also developed some distinctive ways, including second-hand goods transactions of campus. Nowadays, on university campuses, every school season and graduation season, the Flea market on campus has become particularly prosperous, but this way of trading goods with a street vendor has seriously affected the normal order of the campus, simultaneously,affected the efficiency of the transaction. Based on these circumstances, the second-hand goods network pre-trading systems for campus came into being.The B/S development model was used in the system which is based on Myeclipse running platform, S2 SH integrated framework, JAVA language, HTML language, JSP technology, MySql databases and other key technology. This paper first analyzes the research status of campus e-commerce at home and abroad as well as the campus second-hand goods trading system, introduces the key technology of the development of this system, and combines with the the UML use case diagram define the functional requirements of the system visually, design the overall framework of the system, then provide the system functional design and database design, complete the realization of each function module, finally, each module test case and test results are given, which verifies the rationality of the design system. The whole system is mainly for the system administrators, visitors and registed users. It can be divided into the foreground and background. The foreground main achieve the home page display, the users login and register, issue goods, buy product information,leave words and so on while the background mainly aims to the management and protection of the whole system.The second-hand goods network pre-trading systems for campus based on J2 EE has the advantages of e-commerce platform, which provides a new way for the traditional trading of second-hand goods. The whole system has the advantages of simple operation, stable operation, friendly interface, good maintenance performanceand so on. System test shows that, the main function of this system achieve well,Operate normally and meet the needs of users, the second-hand goods network pre-trading systems for campus is beneficial to establish a conservation minded campus, which has a wide range of application prospects and practical significance.