異源數(shù)據(jù)對(duì)象化訪問(wèn)機(jī)制的研究與實(shí)現(xiàn).pdf

1、北京工業(yè)大學(xué)碩士學(xué)位論文異源數(shù)據(jù)對(duì)象化訪問(wèn)機(jī)制的研究與實(shí)現(xiàn)姓名：劉知?jiǎng)偵暾?qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：軟件工程指導(dǎo)教師：何涇沙王龍斌20050501北京工業(yè)大學(xué)工程碩士學(xué)位論文IIIIIII●●__●__●_●AbstractInthesedays，informationtechnologyisdevelopingrapidly，mostofdeparlanentsinthesocietyareallbuildingtheirwebinform

2、ationmanagementsystemtoexpandtheirroutinequicklyandefficiently，andtoexchangeandsharetheinformationbyinternctMostofthesesystemsaretherelayerbasedwebapplicationsInthethere—layerarchitecture，dataaccesslayeristhekeylayerinth

3、ewholewebapplicationandthedesigningofitisconcerningnotonlybusinesslogiclayerasabovelayerbutalsothedataSOUrCesinthebackgromldHowtodesignsuchadataaccesslayerwhichCallconsiderthedifferenceofdatasourcewellandprovidegoodservi

4、ceforbusinessIogiclayerisarealproblemworthresearching‘tierresearchingprofoundlyintodatasourcesanddataaccesstechnologies，thisthesistriestOpresentasolutionofdiffi：rentdatasourcesobjectaccessThesolutionrovidesdataaccesslaye

5、ragoodrunplatfoml，anditabsorbswellthethoughtofobject—orientedprogrammingtomakethedeveloperofbusinesslogic!ayerhandlingdataasobjects，andSOtheycouldavoidthetanglingwithdatasoul陀esandspeedthedevelopmentcycleOntheotherhand，t

6、hismechanismofdifferentdataobjectaccessutilizesthestoredproceduretealizetherealactionsofdataaccPss，anditCanshieldthedifferenceofdatabasesinthebackgroundandSOitprovide：theconveniencefortransplantingfromadatabasetoanothero

7、neafterwardAlsothemechanismprovidesthesupportingforXMLdataSOUrCe，anditCallreadandwriteXMLdataconvenientlytoshinetheinformationandtotakethecooperationofthebusinessbyinternetMeanwhile，attheendingofthethesis，thepenmandesign

8、sandrealizesasystemf110m：lrealprojectasadameThesystemappliessuccessfullythedataaccessmechtmism。iedifferentdataSOUrCeSobjectaccessmechanismnlethesisadoptstheMierosoRVisualStudioNETdevelopingplatformandC撐languageasmaindcsi