Caij nplooj ntoos hlav Tutorial – Connect spring nrog Hibernate (ORM)
Txheej txheem cej luam
lub caij nplooj ntoos hlav ORM Hloo yuav ua tau ib qho tseem ceeb milestone tsev kom zoo enterprise daim ntawv thov. Lub caij nplooj ntoos hlav yog ib qhov nrov tshaj nrov enterprise daim ntawv thov kev pab cuam frameworks thiab Hibernate yog ib qhov nrov tshaj database rau khoom mapping frameworks. Txawm li cas los, Txij thaum muaj ntau versions ntawm ob lub caij nplooj ntoos hlav thiab Hibernate, Tej zaum koj yuav tau nco ntsoov tias tej zaum yuav muaj compatibility ntawm ob leeg frameworks nyob ntawm ntau yam. Piv txwv, Qhov teeb meem incompatibility no yuav yog los ntawm Hibernate hoob kawm mus rau cov hoob kawm. Yog tsis muaj qhia rau matching versions compatible versions, Compatibility nyob ntawm ob peb paub thiab tsis paub. Koj yuav tsum nrhiav tau versions. Compatibility teeb meem yuav tsum tsis txhob qhia rau koj los ntawm undertaking yog ib teg num. Lub caij nplooj ntoos hlav thiab Hibernate integration yuav tsum ua raws li ib txoj kev los yog hauv cov kauj ruam ntawm cov kauj ruam yuav ntse. Tsab xov xwm no piav cov qauv kawm thiab cov qauv ntawm integrating CAIJ NPLOOJ NTOOS HLAV Nrog Hibernate thiab muab ib qho piv txwv.
Yuav tsum nyeem – Cov kauj ruam yuav ua hauj lwm nrog lub caij nplooj ntoos hlav xws li
Txhooj Puab
Koj yuav tsum tau nco ntsoov nco ntsoov sab hauv qab no.
- Koj yuav tsum nrhiav kom paub versions ntawm Caij nplooj ntoos hlav thiab Hibernate. Muaj ntau yam versions muaj tab sis vim ntau yam, Tsis yog txhua versions ntawm ob lub frameworks yuav compatible. pib, tus versions yuav tsum tau compatible.
- Xyuas seb cov dependencies ua tib zoo zoo thiab qhia txog koj qhov peb tes num yuav mus fulfil cov dependencies. Kuj pom tau tias yog leej twg los yeej raug tau tus kab mob no thaum lub ntsej muag qhov teeb meem los yog ib qho teeb meem. Faj seeb tias tej teeb meem uas yog tiag tiag thiab xav pom.
- Thaum uas txhua tus qauv hauv koj qhov project lug tseem ceeb rau nws tus kheej txoj cai, Koj yuav tsum tau tshwj xeeb tshaj yog rau kev tu ncua ntawm DAO chav kawm ntawv vim hais tias cov hoob kawm no yuav raug xa rov qab mus rau lub database thiab pheej ntaub ntawv. Koj yuav hais tau rau cov hoob kawm constitute ntxhais ntawm qhov project integration.
Tej kauj ruam
Lub hom phiaj yog muab cov kauj ruam sab ruaj rau lub caij nplooj ntoos hlav ORM thiab Hibernate.
Configure lub database
Taw txoj cai database thiab teeb lub ntxhuav cov ntxhuav uas muaj cov scripts.
Configure qhov kev tsim txom
Peb tes num yuav tsum comprise txhua yam uas koj yuav tsum tau mus koom lub caij nplooj ntoos hlav ORM thiab Hibernate. Nws yuav txhais ntau npaum li cas cov caij xws li XML thiab SQL cov ntaub ntawv SQL. Cov duab hauv qab no qhia tau hais tias yog ib qhov imaginary peb tes num uas yuav siv tau rau cov kev koom ua ke.
Xeev lub dependencies
Koj yuav tsum tau qhia rau lub xeev los yog lub dependencies ntawm ib qhov kev tswj hwm xws li Maven. Lub ntsiab dependencies tseem yuav tau cov nram qab no:
- Nyob ntawm lub caij nplooj ntoos hlav version uas koj siv, txis lub caij nplooj ntoos hlav-txaus thiab lub caij nplooj ntoos hlav-context rau tus tub ntxhais Spring functionalities.
- Lub caij nplooj ntoos hlav ORM quav kom tau caij nplooj ntoos hlav ORM. Qhov no yog ib qhov tseem ceeb tshaj plaws dependencies rau lub caij nplooj ntoos hlav thiab Hibernate.
- Lub Hibernate framework yog nyob ntawm tus hibernate-chaw thiab hibernate-tub ntxhais hibernate.
- Rau database sib txuas, Lub xeev nyob rau ntawm qhov mysql-connector-connector-java rau MySQL Driver.
Kev txiav txim siab ntawm hoob kawm thiab yog leejtwg tiag
Qhov kev txiav txim yuav yog nyob ntawm seb koj qhov kev tsim nyog tau txais kev pab thiab yuav tsum tau ua. Cia li muab ib foupective los pab koj qhov kev txiav txim siab, Ib tug qauv yog ib yam khoom uas muaj ntaub ntawv uas muaj ntaub ntawv, muab tau cov ntaub ntawv thiab kev pab manipulate cov ntaub ntawv. Ib tug qauv kawm comprises ib los yog ntau hom khoom. Ib qho chaw taum, rau lwm cov tes, Yog ib yam khoom uas tswj tau cov ntaub ntawv pheej thiab tej ntaub ntawv manipulation rau cov ntaub ntawv. Nws siv ntau qhov tob Java tej yam khoom thiab nrhiav tau los ntawm ib tug neeg tseem ceeb.
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Configuring Cov Ntaub Ntawv Access Object (DAO) hoob
Koj yuav tau txiav txim siab seb koj puas tsim nyog tau txais kev pab daO uas koj yuav muaj nyob rau hauv peb tes num, Lawv lub luag hauj lwm nyob rau hauv peb tes num, Cov kev qhia uas koj yuav ntxiv rau cov hoob kawm thiab lawv cov kev sib cuam tshuam nrog lwm cov chaw uas sim mus saib cov database lossis pheej ntaub ntawv los ntawm lub DAO hoob kawm.
Configuring caij nplooj ntoos hlav Taum Hibernate Integration
Tam sim no koj tseem nce lub hom phiaj ntawm qhov project – sib sau ua ke ntawm lub caij nplooj ntoos hlav thiab Hibernate. Xee npe, Koj yuav tau muab database kev twb kev txuas lus rau Hibernate. Koj yuav ua tau los ntawm kev muab tag nrho cov lus hauv hibernate zog los yog tsim ib qho chaw thiab kis nws mus Hibernate. Nyob ntawm seb lub caij nplooj ntoos hlav thiab Hibernate mapped, Lub caij nplooj ntoos hlav ORM muab ob hoob:
- springframework.org.hibernate3.LocalSesSionFactoryBean rau XML kuas mapping.
- springframework.org.hibernate.hibernate.annotationsessionFactoryBean rau annotations kuas mapping.
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Siv
Piv txwv tias koj tau ua raws li cov kauj ruam, Tam sim no yog lub sij hawm mus kuaj koj qhov project thiab paub seb nws puas. Tsim koj tus kheej components thiab ntsuam xyuas cov zis.
Yuav tsum nyeem – Dhia uas xeem coj – nws ua haujlwm li cas?
Xaus
Koj yuav tsum tau nco ntsoov tias cov kauj ruam saum toj no yog sab kauj ruam thiab tiag lub neej tiag scenarios, Muaj peev xwm ua variances xav txog cov scenarios. Tseem, Cov qib principless thiab cov kauj ruam yuav nyob zoo li qub. Piv txwv, Koj yuav xaiv tau XML kuas los yog ntawv tshaj tawm mapping thaum lub caij nplooj ntoos hlav thiab Hibernate lossis koj yuav siv tau ib txoj kev uas muaj ntau txoj kev uas yuav txuas nrog Hibernate. Txawm li cas los, Koj yuav tau nco ntsoov hais tias qhov yuav ua rau muaj feem xyuam rau txoj kev sib txawv me ntsis vim yog qhov sib txawv ntawm rooj plaub txawv versions spring thiab Hibernate.
