EJB層次模式架構(gòu)的研究及在電子商務(wù)系統(tǒng)開(kāi)發(fā)中的應(yīng)用.pdf

1、分類(lèi)號(hào)：TP3915203040密級(jí)天津理工大學(xué)研究生學(xué)位論文Y836fi78EJB層次模式架構(gòu)的研究及在電子商務(wù)系統(tǒng)開(kāi)發(fā)中的應(yīng)用基金項(xiàng)目：網(wǎng)絡(luò)分布式超媒體系統(tǒng)模型(983600811)(申請(qǐng)碩士學(xué)位)學(xué)科專(zhuān)業(yè)：計(jì)算機(jī)應(yīng)用技術(shù)研究方向：基于分布式網(wǎng)絡(luò)的計(jì)算機(jī)應(yīng)用’作者姓名：楊曉梅指導(dǎo)教師：于長(zhǎng)云教授2005年12月Abstract0bjectorientedtechnologyandcomponenttechnologyarehotsp

2、otsofcurrentcomputerdevelopmentAsanopenandstandardbasedplatformfordevelopingandrunningapplications，theJ2EEframeworksynthesizesmultipletechnologiessuchasobJectorientedtechnologysoftwarearchitecturecomponentbaseddevelopmen

3、tdistributedobjecttechnologyItefficientlyimprovesthequalityoftheserver—smesoftwareAsthekernelofJ2EEplatformEJBlsamultipletieranddistributedarchitectureonserversideDevelopersinapplicationfieldsareabletodesignandimplementb

4、usinesslogicwithouttakingthesystemlevelserviceintoaccountEJBcomponentbasedtechnologysimplifiesapplicationdevelopmentButforitiscomplicatedsoitisachallengefordeveloperstobuildaefficientsecureandreliablearchitectureThesupre

5、medimcnityfordevelopersIstochooseaproperframeworktomeetthedemandsofcapabilitymaintenanceandmigrationDesignpatternisusedinmanyEJBprojectswithgoodframeworkDesignpatternisasummaryofsuccessfuIexperiencesondevelopingobjectori

6、entedsoftwareItisareusablesolutiontoacertaintypeofrepeatedproblemsIndevelopingsoftware，applyingdesignpatternscorrectlyandproperlymeanstotakeadvantageofthepastsuccessfuldesignarchitectureGooddesignpattern／frameworkmakessy

7、stemeasytomodi移andmaintainSoitisimportanttoapplydesignpatterndodesignstable，reliable，extendedcanonicalsystemframeworkForit’sglancingarchitecture，problemswilloccurredsuchasefficiency，accessspeed，extendibilityandmaintenanc

8、eSothroughthedeepstudyofdesignpatternandEJBcomponentbasedtechnologyinthepaperitposesakindofEJBhierarchyframeworkwithproperdesignpatternsLateritgivesthepracticeinelectroniccommercialsystemandimplementedaonlinebookstoresys