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1、网上拍卖系统论文 JSP的网上拍卖系统2008年10月11日18:19基于JSP的网上拍卖系统的分析与设计摘要随着Internet的日益普及和电子商务的发展,网上拍卖迅速成为一种非常活跃的C2C电子商务模式。文中详细介绍了JSP技术以及分析了基于JSP建立网上拍卖系统的技术手段，深入探讨了如何利用JavaBean技术实现与SQLServer2000数据库连接的方法。系统采用界面与业务逻辑分离的三层结构设计，将页面显示交由JSP控制，把业务逻辑封装在JavaBean中，提高了系统的安全性、可维护性、重
2、用性和可扩展性。系统的注册模块应用了AJAX技术，不但实现了无刷新提交数据而且减轻了服务器的负担;通过缓存系统配置信息减轻数据库服务器的压力;对系统后台模块使用双重密码校验和验证码技术，进一步提升了系统的完全系数，使它能即使在复杂的网络环境也能以最小的系统开销正常运行。关键词：电子商务，C2C，JavaBean，AJAXABSTRACTWiththeincreasingpopularizationofInternetandthedevelopmentofelectroniccommerce,thenetauc
3、tionquicklybecomesonekindofactiveC2Celectroniccommerce.ThearticledetailedlyintroducesaJSPtechniqueandanalyzesthetechniquemeansofbuildinganetauctionsystembasedonJSP,thendeeplydiscusseshowtouseJavaBeantechniquetobuildconnectionwithSQLServer2000databases.Thesy
4、stemusesthreestructuraldesignswhichthecontactsurfaceandtheservicelogicseparates,thepagedemonstratedhandsoverbytheJSPcontrol,theservicelogicsealinJavaBean,enhancedthesystemsecurity,themaintainability,hasentrustedwithheavyresponsibilitythenaturewithinexplosio
5、nandfirehazardatmospheresbeforetheinstallationisputintooperation,buildinginstallationworkshallmeetthefollowingrequirements:repairanddecorationworksshouldendsecondgroutingandfinishingworkshouldend,satisfactoryoperationofexplosion-proofventilationsystemshould
6、complywiththedesignrequirementsand.4.1.11.3explosion-proofelectricalequipmentintothelineportandwiringandcables,wiresshouldbecapableofreliablysealing,extrainletelasticgasket,metalgasketshouldbecompleteandshouldtightentheclampinglarvainletseals.Metalgasketthi
7、cknessshallnotbelessthan2mm.4.1.11.4theinstallationofexplosion-prooflampslamptype,modelandpower,thedesignandspecificationofrequirements,maynotbealtered.Spiralbulbsshouldbetightenedupandgoodcontact,notloose,lamphousingsshouldbecomplete,boltsshouldbetightened
8、.4.1.11.5explosiondangerousenvironmentofcablecannotdirectlyconnection,innon-normalsituationXia,mustincorrespondingofexplosion-proofwiringboxorpointslineboxwithinconnectionortap,cablelinethroughdifferen
