Video: JAXBCContext yog dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
JAXB stands rau Java architecture rau XML binding. Nws yog siv los hloov XML rau java object thiab java object rau XML. JAXB txhais API rau kev nyeem thiab sau cov khoom Java rau thiab los ntawm cov ntaub ntawv XML. Tsis zoo li SAX thiab DOM, peb tsis tas yuav tsum paub txog XML parsing cov txheej txheem.
Kuj kom paub yog, siv JAXBContext hauv Java yog dab tsi?
JAXB sawv rau Java Architecture rau XML Binding. Nws muab mechanism rau marshal (sau) java ua cov khoom rau hauv XML thiab unmarshal (nyeem) XML rau hauv cov khoom. Yooj yim, koj tuaj yeem hais nws yog siv hloov java ua object rau hauv xml thiab vice-versa.
Ib sab saum toj no, JAXB marshalling ua haujlwm li cas? Marshalling muab tus neeg siv daim ntawv thov lub peev xwm los hloov a JAXB derived Java object tree rau hauv cov ntaub ntawv XML. Los ntawm default, lub Marshaller siv UTF-8 encoding thaum tsim cov ntaub ntawv XML. Tom ntej no, peb yuav tsim cov ntaub ntawv XML los ntawm Java khoom.
Tib neeg kuj nug, JAXBContext xov puas nyab xeeb?
JAXBCContext yog xov nyab xeeb thiab yuav tsum tsuas yog tsim ib zaug thiab rov siv dua kom tsis txhob raug nqi pib ntawm metadata ntau zaus. Marshaller thiab Unmarshaller tsis yog xov nyab xeeb , tab sis yog lub teeb yuag los tsim thiab tuaj yeem tsim los ua haujlwm.
Puas yog Jaxb ib feem ntawm JDK?
JAXB yog ib qho ntawm APIs hauv Jakarta EE platform (yav tas los hu ua Java EE), ib feem ntawm Java Web Services Development Pack (JWSDP), thiab yog ib lub hauv paus rau WSIT. Nws kuj yog ib feem ntawm Java SE platform (hauv version Java SE 6-10). Raws li ntawm Java SE 11, JAXB raug tshem tawm. Yog xav paub ntxiv, saib JEP 320.
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