Video: Dab tsi yog Dependencymanagement hauv Maven?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Dependency Management . Kev tswj hwm kev vam meej yog ib tug mechanism rau centralize cov ntaub ntawv nyob rau hauv dependency. Nyob rau hauv ib qhov project multi-module, koj tuaj yeem hais qhia hauv niam txiv qhov project tag nrho cov artifact version thiab nws yuav tau txais los ntawm cov me nyuam tej yaam num. Hauv qab no peb yuav pom ib qho piv txwv uas muaj ob POMs uas txuas rau tib tus niam txiv
Ntawm no, dab tsi yog kev vam khom kev tswj hwm hauv Pom?
Zoo li koj hais; DependencyManagement yog siv los rub tag nrho cov ntaub ntawv kev vam khom rau hauv ib qho POM cov ntaub ntawv, simplifying cov ntaub ntawv nyob rau hauv tus me nyuam POM ntaub ntawv. Nws yuav pab tau thaum koj muaj ntau tus cwj pwm uas koj tsis xav rov ntaus rau hauv ntau qhov haujlwm me me.
Ib sab saum toj no, POM XML ua haujlwm li cas? Cov pom . xml cov ntaub ntawv muaj cov ntaub ntawv ntawm qhov project thiab configuration cov ntaub ntawv rau maven los tsim qhov project xws li dependencies, tsim directory, qhov chaw directory, xeem qhov chaw directory, plugin, lub hom phiaj thiab lwm yam. Maven nyeem cov pom . xml file, ces executes lub hom phiaj.
Ntawm no, dab tsi yog bom hauv Maven?
BOM sawv cev rau Bill Of Materials. A BOM yog ib hom tshwj xeeb ntawm POM uas yog siv los tswj cov versions ntawm ib qhov project dependencies thiab muab ib qho chaw nruab nrab los txhais thiab hloov kho cov versions. BOM muab qhov yooj yim ntxiv rau kev vam khom rau peb cov module yam tsis muaj kev txhawj xeeb txog cov version uas peb yuav tsum nyob ntawm.
Vim li cas kev tswj hwm kev vam meej ua tiav hauv niam txiv cov ntaub ntawv POM?
Cov kev tswj hwm kev vam meej seem yog ib tug mechanism rau centralizing kev vam khom cov ntaub ntawv. Thaum koj muaj ib txheej ntawm tej yaam num uas tau txais los ntawm ib tug ntau niam txiv , nws muaj peev xwm muab tag nrho cov ntaub ntawv hais txog lub kev vam khom nyob rau hauv kev POM thiab muaj cov ntaub ntawv yooj yim dua rau cov khoom qub hauv tus menyuam POMs.
Pom zoo:
Lub ntim ntim hauv Maven yog dab tsi?
Hom ntim tau teev nyob rau hauv pom. xml piav qhia los ntawm lub caij, feem ntau tom qab nws Maven coordinates. Hom ntim khoom qub yog lub thawv. Lub hom phiaj plugin uas tau ua los ntawm lub neej ntawd nyob rau hauv txhua theem ntawm lub neej voj voog nyob ntawm seb hom ntim ntawm qhov project uas peb yuav tsim
Dab tsi yog muab kev vam khom hauv Maven?
Maven dependency Scope - muab Maven dependency Scope muab yog siv thaum tsim thiab sim qhov project. Lawv kuj tseem yuav tsum tau khiav, tab sis yuav tsum tsis txhob xa tawm, vim tias qhov kev cia siab yuav muab los ntawm lub sijhawm ua haujlwm, piv txwv li, los ntawm servlet thawv lossis daim ntawv thov server
Yuav ua li cas yog ib tug txheej txheem nyob rau hauv lub operating system dab tsi yog ib tug xov nyob rau hauv lub operating system?
Ib tug txheej txheem, nyob rau hauv cov nqe lus yooj yim tshaj, yog ib tug executingprogram. Ib tug los yog ntau tshaj threads khiav nyob rau hauv cov ntsiab lus ntawm cov txheej txheem. Ib tug xov yog ib qho tseem ceeb chav tsev uas theoperating system faib lub sij hawm processor. Lub threadpool feem ntau yog siv los txo tus naj npawb ntawm cov ntaub ntawv thov thiab muab kev tswj hwm ntawm cov neeg ua haujlwm threads
Dab tsi yog txoj hauv kev virtual thiab txoj hauv lub cev hauv asp net?
Ua ntej tshaj, cia peb tau txais cov ntsiab lus ntawm ob qho tib si. Txoj kev lub cev - Qhov no yog txoj hauv kev tiag tiag cov ntaub ntawv nyob ntawm IIS. Txoj kev Virtual - Qhov no yog txoj hauv kev kom nkag mus rau cov ntaub ntawv uas tau taw qhia los ntawm sab nraud ntawm IIS daim ntawv thov folder
Dab tsi yog qhov tsis muaj dab tsi hauv Java?
Pej xeem txhais tau hais tias txoj kev pom thiab tuaj yeem raug hu los ntawm lwm yam khoom ntawm lwm hom. Lwm cov kev xaiv yog tus kheej, tiv thaiv, pob thiab pob-private.Qhov no txhais tau hais tias koj tuaj yeem hu rau txoj kev zoo li qub yam tsis muaj kev tsim anobject ntawm chav kawm. void txhais tau hais tias txoj kev tsis muaj nqi