Kev siv JSON hauv Java yog dab tsi?
Kev siv JSON hauv Java yog dab tsi?

Video: Kev siv JSON hauv Java yog dab tsi?

Video: Kev siv JSON hauv Java yog dab tsi?
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JSON (ib lub ntsiab lus rau JavaScript Object Notation) yog ib hom kev sib hloov cov ntaub ntawv sib hloov thiab feem ntau yog siv rau kev sib txuas lus ntawm cov neeg siv khoom. Nws yog ob qho tib si nyeem / sau tau yooj yim thiab cov lus ywj pheej. Tus nqi JSON tuaj yeem yog lwm yam khoom JSON, array, tus lej, txoj hlua, boolean (qhov tseeb / tsis tseeb) lossis null.

Tom qab ntawd, peb puas tuaj yeem siv JSON hauv Java?

Cov json . lub tsev qiv ntawv yooj yim tso cai rau peb nyeem thiab sau ntawv JSON cov ntaub ntawv hauv Java . Hauv lwm lo lus, peb ua tau encode thiab txiav txim siab JSON khoom hauv java ua siv json . pob ntawv yooj yim muaj cov chav kawm tseem ceeb rau JSON API.

Tsis tas li ntawd, vim li cas peb thiaj siv JSON? Cov JSON hom ntawv yog feem ntau siv rau serializing thiab xa cov ntaub ntawv tsim los ntawm kev sib txuas network. Nws yog siv Feem ntau xa cov ntaub ntawv ntawm tus neeg rau zaub mov thiab lub vev xaib thov, ua lwm txoj hauv kev rau XML. JSON yog JavaScript Object Notation.

Cov lus nug tseem yog, JSON yog dab tsi thiab vim li cas nws thiaj siv?

JSON , lossis JavaScript Object Notation, yog qhov tsawg kawg nkaus, nyeem tau hom ntawv rau kev teeb tsa cov ntaub ntawv. Nws yog siv Feem ntau xa cov ntaub ntawv ntawm tus neeg rau zaub mov thiab lub vev xaib thov, ua lwm txoj hauv kev rau XML. Squarespace siv JSON khaws thiab teeb tsa cov ntsiab lus ntawm qhov chaw tsim nrog CMS.

JSON piv txwv yog dab tsi?

JSON tuaj yeem nqa daim ntawv ntawm txhua hom ntaub ntawv uas siv tau rau kev suav nrog hauv JSON , tsis yog arrays lossis khoom. Yog li ntawd rau piv txwv , ib txoj hlua los yog tus lej yuav siv tau JSON khoom. Tsis zoo li hauv JavaScript code nyob rau hauv cov khoom yam khoom tej zaum yuav unquoted, nyob rau hauv JSON tsuas yog hais cov hlua yuav raug siv los ua khoom.

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