Video: Dab tsi yog cov haujlwm tsis ua haujlwm hauv Spring Batch?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
JobParameters yog ib txheej ntawm tsis muaj siv los pib a batch txoj haujlwm . JobParameters tuaj yeem siv rau kev txheeb xyuas lossis txawm tias siv cov ntaub ntawv thaum lub sijhawm txoj hauj lwm khiav. Lawv muaj cov npe tshwj xeeb, yog li nkag mus rau lawv peb tuaj yeem siv Caij nplooj ntoos hlav Lus Qhia.
Hais txog qhov no, dab tsi yog txoj hauj lwm nyob rau hauv lub caij nplooj ntoos hlav batch?
Caij nplooj ntoos hlav Batch , yog ib qho qhib lub moj khaum rau pawg processing - ua tiav ntawm ib tug series ntawm hauj lwm . Caij nplooj ntoos hlav Batch muab cov chav kawm thiab APIs los nyeem / sau cov peev txheej, kev tswj hwm kev lag luam, txoj hauj lwm kev txheeb cais, txoj hauj lwm rov pib dua thiab faib cov txheej txheem los ua cov ntaub ntawv ntau.
Qhov thib ob, StepScope yog dab tsi hauv Spring Batch? A caij nplooj ntoos hlav batch StepScope khoom yog ib qho tshwj xeeb rau ib kauj ruam tshwj xeeb thiab tsis yog ib qho singleton. Tab sis los ntawm kev qhia a caij nplooj ntoos hlav batch tiv thaiv StepScope txhais tau tias Caij nplooj ntoos hlav Batch yuav siv lub caij nplooj ntoos hlav thawv kom instantiate ib qho piv txwv tshiab ntawm cov khoom ntawd rau txhua kauj ruam ua.
Ib tug kuj yuav nug, dab tsi yog txoj hauj lwm parameter?
Cov kev ua haujlwm txhais cov ntaub ntawv koj xav tau hauv daim ntawv tshaj tawm lossis cov ntaub ntawv koj xav tau ua tiav hauv kev hloov tshiab batch. Piv txwv li, tej zaum koj yuav xav kom txhais tau tias ib daim ntawv qhia muaj xws li ib lub tuam txhab cov ntaub ntawv los yog batch hloov tshiab txheej txheem ib lub tuam txhab cov ntaub ntawv.
Spring Batch piv txwv yog dab tsi?
Caij nplooj ntoos hlav Batch yog lub moj khaum rau pawg kev ua haujlwm - ua tiav ntawm ntau txoj haujlwm. Caij nplooj ntoos hlav Batch muab ntau chav kawm nyeem / sau CSV, XML thiab database. Rau kev ua haujlwm "ib zaug" (tasklet), nws txhais tau tias ua haujlwm nkaus xwb, xws li ntxuav cov peev txheej tom qab lossis ua ntej ib kauj ruam pib lossis ua tiav.
Pom zoo:
Dab tsi ntawm cov hauv qab no hais txog lub peev xwm ntawm cov khoom siv computer lossis cov kab ke nthuav dav los pab ntau tus neeg siv yam tsis tau tawg?
Scalability hais txog lub peev xwm ntawm lub khoos phis tawj, cov khoom lag luam, lossis cov txheej txheem nthuav dav los pab ntau tus neeg siv yam tsis muaj kev tawg. IT infrastructure tsuas yog cov cuab yeej siv lub cev tsuas yog xav tau los khiav lag luam
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Dab tsi yog qhov kev ua tiav hauv Spring Batch?
Ib qho ExecutionContext yog ib pawg ntawm cov txiaj ntsig tseem ceeb uas muaj cov ntaub ntawv uas tau txiav txim siab rau StepExecution lossis JobExecution. Caij nplooj ntoos hlav Batch txuas ntxiv rau ExecutionContext, uas yuav pab tau thaum koj xav rov pib dua batch khiav (piv txwv li, thaum muaj kev ua yuam kev tuag, thiab lwm yam)
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