java teach.yourself j2ee in 21 days sams

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1、000672323842FM3/20/029:31AMPageiMartinBondDanHaywoodDebbieLawAndyLongshawPeterRoxburghTeachYourselfJ2EEin21Days201West103rdSt.,Indianapolis,Indiana,46290USA000672323842FM3/20/029:31AMPageiiSamsTeachYourselfJ2EEin21DaysACQUISITIONSEDITORToddGreenCopyright2002bySams

2、PublishingDEVELOPMENTEDITORAllrightsreserved.Nopartofthisbookshallbereproduced,storedinaMichaelWatsonretrievalsystem,ortransmittedbyanymeans,electronic,mechanical,photo-PROJECTEDITORcopying,recording,orotherwise,withoutwrittenpermissionfromthepublish-er.Nopatentlia

3、bilityisassumedwithrespecttotheuseoftheinformationChristinaSmithcontainedherein.AlthougheveryprecautionhasbeentakeninthepreparationCOPYEDITORofthisbook,thepublisherandauthorassumenoresponsibilityforerrorsorPatKinyonomissions.Norisanyliabilityassumedfordamagesresult

4、ingfromtheuseoftheinformationcontainedherein.INDEXERSTomDinseInternationalStandardBookNumber:0-672-32384-2ErikaMillenLibraryofCongressCatalogCardNumber:2001098579PROOFREADERPrintedintheUnitedStatesofAmericaMelissaLynchTECHNICALEDITORFirstPrinting:April,2002HaroldFi

5、nz,SteveHeckler,030201004321FarooqKarim,andAriKrupnikovTrademarksTEAMCOORDINATORAlltermsmentionedinthisbookthatareknowntobetrademarksorservicePamaleeNelsonmarkshavebeenappropriatelycapitalized.SamsPublishingcannotattesttotheaccuracyofthisinformation.Useofaterminthi

6、sbookshouldnotbeINTERIORDESIGNERregardedasaffectingthevalidityofanytrademarkorservicemark.GaryAdairCOVERDESIGNERWarningandDisclaimerArenHowellEveryefforthasbeenmadetomakethisbookascompleteandasaccurateasPRODUCTIONpossible,butnowarrantyorfitnessisimplied.Theinformat

7、ionprovidedisonan“asis”basis.TheauthorsandthepublishershallhaveneitherliabilitynorCherylLynchresponsibilitytoanypersonorentitywithrespecttoanylossordamagesaris-MichelleMitchellingfromtheinformationcontainedinthisbook.EXECUTIVEEDITORMichaelStephensMANAGINGEDITORMatt

8、Purcell000672323842FM3/20/029:31AMPageiiiContentsataGlanceIntroduction1WEEK1IntroducingJ2EEandEJBs7Day1TheChallengeofN-TierDevelopment92TheJ2EEPl