Cov txheej txheem:

Dab tsi yog DOM parsing hauv Android?
Dab tsi yog DOM parsing hauv Android?

Video: Dab tsi yog DOM parsing hauv Android?

Video: Dab tsi yog DOM parsing hauv Android?
Video: Vaajtswv Lub Tebchaws/The Kingdom Of God - Nyaj Xuv Xyooj 2024, Kaum ib hlis
Anonim

Android DOM Parser

Feem ntau, cov DOM parser yuav thauj cov ntaub ntawv XML rau hauv nco rau parse XML daim ntawv, vim hais tias nws yuav haus ntau lub cim xeeb thiab nws yuav parse cov ntaub ntawv XML los ntawm pib node mus rau qhov kawg node. Hauv qab no yog cov qauv qauv ntawm XML cov ntaub ntawv nrog cov neeg siv cov ntsiab lus hauv hauv daim ntawv thov.

Yog li ntawd, DOM parsing yog dab tsi?

DOM parser yog npaj rau kev ua hauj lwm nrog XML raws li ib yam khoom graph (ib tsob ntoo zoo li qauv) nyob rau hauv lub cim xeeb - thiaj li hu ua "Cov Ntaub Ntawv Object Model ( DOM )". Cov no DOM cov khoom sib txuas ua ke hauv ib tsob ntoo zoo li cov qauv. Ib zaug lub parser ua tiav nrog kev txheeb xyuas txheej txheem, peb tau cov ntoo zoo li no DOM khoom qauv rov qab los ntawm nws.

Ib tug kuj yuav nug, DOM yog dab tsi hauv Java? Java DOM Parser - Txheej txheem cej luam. Kev tshaj tawm. Cov Ntaub Ntawv Object Model ( DOM ) yog kev pom zoo los ntawm World Wide Web Consortium (W3C). Nws txhais lub interface uas ua rau cov kev pab cuam nkag mus thiab hloov kho cov style, qauv, thiab cov ntsiab lus ntawm XML cov ntaub ntawv. XML parers uas txhawb nqa DOM siv qhov interface no.

Dab tsi yog parsing hauv Android?

XML stands rau Extensible Mark-up Language. XML yog hom ntawv nrov heev thiab feem ntau siv los sib qhia cov ntaub ntawv hauv internet. Tshooj no piav qhia yuav ua li cas parse XML cov ntaub ntawv thiab rho tawm cov ntaub ntawv tsim nyog los ntawm nws. Android muab peb hom XML parser uas yog DOM, SAX thiab XMLPullParser.

DOM parser thiab SAX parser yog dab tsi?

1) DOM parser loads tag nrho cov ntaub ntawv XML hauv nco thaum SAX tsuas yog thauj ib feem me me ntawm XML cov ntaub ntawv hauv lub cim xeeb. 2) DOM parser yog sai dua SAX vim nws nkag tau tag nrho cov ntaub ntawv XML hauv lub cim xeeb. 4) DOM parser ua haujlwm ntawm Document Object Model thaum SAX yog qhov xwm txheej raws li XML parser.

Pom zoo: