- Ukulandelelanisa idatha kuguqula izinto zedatha ezintsonkothileyo zibe yimijelo ye-byte okanye imitya yokudlulisela nokugcina ngokukhuselekileyo.
- I-Python inika izixhobo ezahlukeneyo ezifana ne-JSON yokusebenzisana, i-Pickle yezinto ezintsonkothileyo, kunye ne-Marshal yedatha ye-binary ekhawulezayo.
- IJava isebenzisa ujongano lwe-Serializable kunye nemijelo ekhethekileyo ukulawula ukuqina kwezinto kunye nonxibelelwano lwenethiwekhi.
Wakha wazibuza ukuba idatha entsonkothileyo, njengeprofayili yomsebenzisi okanye imeko yomdlalo, ihamba njani ukusuka kwenye ikhompyutha ukuya kwenye ngaphandle kokonakala ngokupheleleyo? uthotho Iyasebenza. Ngokusisiseko liqhinga elimangalisayo lokuguqula into ephilayo kwimemori yekhompyutha yakho ibe yifomathi—njengoluhlu lwee-bytes okanye ifayile yombhalo—enokuthunyelwa ngokulula kwinethiwekhi okanye ifihlwe kwisiseko sedatha ukuze isetyenziswe kamva.
Cinga ngayo njengefenitshala epakishwe ngokupheleleyo evela kwi-IKEA. Awunakuthumela ikhabhathi ehlanganiswe ngokupheleleyo ngeposi kuba inkulu kakhulu kwaye ibuthathaka. Endaweni yoko, wena ukuyiqhekeza ibe yibhokisi ethe tyaba (ukudibanisa i-serialization) kwaye umamkeli uyibuyisela ndawonye esebenzisa imiyalelo (ukudibanisa i-serialization). Nokuba usebenza nayo IPython okanye iJava, ukuqonda le nkqubo kubalulekile ekwakheni ii-apps ezinokuthi zithethe zodwa.
Iziseko zendlela esebenza ngayo
Eyona nto iphambili, ukulandelelana kwe-serialization malunga ukuguqula idatha kwifomathi elula ukuyidlulisela. Ngokusebenzisa ii-serializers zedatha, abaprogram banokuguqula izinto zibe imilambo yebhayithiOku kuvumela idatha ukuba ityibilike kwii-firewall, itsibe phakathi kweedathabheyisi ezahlukeneyo, kwaye idlule kwiidomeyini ezahlukeneyo ngaphandle kokulahlekelwa bubunyani bayo. Yindlela yokusindisa ubomi ukunciphisa ukubambezeleka kunye nokunciphisa ubungakanani bendawo yokugcina efunekayo kwiiseti zedatha ezinkulu.
Xa kufika ixesha lokuhambisa le datha, abaphuhlisi badla ngokukhetha ifomathi ethile. JSON (JavaScript Object Nottation) yeyona nto ithandwayo kubantu abaninzi kuba lulwimi olulula noludlala kakuhle phantse kuzo zonke iilwimi zenkqubo ezikhoyo, kuquka i-C++ kunye ne-C. Emva koko kukho XML, nto leyo ilungele ukuguqula idatha ibe yimitya elandelelanayo, nangona incinci kancinci kuba ayixhasi ulwazi lwabucala kwaye isebenza kuphela ngezinto zikawonke-wonke.
Ukuntywila nzulu kwiPython Serialization
I-Python iguquguquka kakhulu kwaye ikunika izixhobo ezimbalwa ezahlukeneyo kuxhomekeke kwinto ozama ukuyifezekisa. Ukuba ufuna into abantu abanokuyifunda kwaye ezinye iilwimi zinokuyiqonda, imodyuli yeJSON yeyona nto ilungileyo onokuyenza. Ikuvumela ukuba ufake ikhowudi kwizinto zePython kwifomathi yombhalo uze uziguqulele, nto leyo eyenza ukuba zilungele ii-API zewebhu kunye neefayile zoqwalaselo.
Ngoku, ukuba ujongene nezakhiwo zedatha ezintsonkothileyo zePython, uya kufuna ukuzisebenzisa PickleLe modyuli iphatha inkqubo “yokucola”—ukuguqula izinto zibe zii-byte—uze uzikhuphe. Ngelixa ikwanjalo intle kakhulu yokugcina idatha yangaphakathi kwaye ukugcina izakhiwo ezintsonkothileyo, ayifundeki ebantwini, oko kuthetha ukuba ukulungisa iimpazamo kunokuba yinto embi kakhulu ukuba izinto azihambi kakuhle.
Kwabo bafuna isantya esiluhlaza, I-Marshal yeyona ndlela ikhawulezayo yokusingatha i-serialization kwiPython. Ibhala idatha kwifomathi ye-binary kwaye isetyenziswa kakhulu ukwenza lula indlela iimodyuli zePython ezifunda nezibhala ngayo ikhowudi. Nangona kunjalo, ayiguquguquki njengeJSON okanye iPickle kuba ixhasa kuphela iintlobo zedatha esisiseko njengeentambo, amanani, kunye noluhlu. Isilumkiso esikhulu: UMarshal akakhuselekanga ngokuchasene nedatha enobungozi, ngoko ungaze uyisebenzise nemithombo engaqinisekiswanga.
Ukuze oku kusebenze, uza kusebenzisa rhoqo json.loads() ukuguqula umtya ube yinto yePython kwaye json.dumps() ukuguqula into ibe yi-JSON string. Lo mjikelo ngumqolo wendlela uninzi lwanamhlanje izicelo zewebhu phatha ulwazi.
Ukuphatha i-Serialization kwiJava
IJava ithatha indlela ecwangciswe kancinci. Ukuze into ilandelelaniswe, iklasi kufuneka isebenzise java.io.Serializable ujongano. Oku koko kwaziwa ngokuba yi-"marker interface"—ayinazo iindlela zokubhala, kodwa ixelela iJava Virtual Machine (JVM) ukuba olu hlobo luthile lukhona kuvunyelwe ukuba kulandelelaniswe ngokulandelelana.
Ukuze izinto zihlale zihlelekile kwaye kuthintelwe ukungqubana ngexesha lenkqubo yokwakha kwakhona, iJava isebenzisa uguqulelo lwe-serialUIDEsi sisihlonzi esahlukileyo esiqinisekisa ukuba iklasi elayishwayo iyahambelana nenguqulelo yedatha elandelelanayo. Ukuba ufuna ukuyisusa ngokwenene idatha, uya kusebenzisa ObjectOutputStream ukubhala into kwifayile okanye kwinethiwekhi, kunye ObjectInputStream ukuyibuyisela ebomini.
Enye into emnandi kwiJava kukuba igama elingundoqo lexesha elifutshaneUkuba unedatha eyimfihlo, njengegama lokugqitha, ungayiphawula loo ntsimi njengeyesikhashana ukuze ibe ayifakwanga ngokulandelelanaUkuba ufuna ulawulo olungakumbi, ungayitshintsha indlela bhala iNto kwaye funda iNto iindlela zokongeza ingqiqo eyenziwe ngokwezifiso, njengokubethela idatha ngephanyazo.
Ukukhetha isixhobo esifanelekileyo somsebenzi
Ukukhetha indlela elungileyo kuxhomekeke ngokupheleleyo kwiimfuno zeprojekthi yakho. Ukuba wakha usetyenziso olusebenzisa amaqonga amaninzi, I-JSON ngumgangatho wegolide ngenxa yokusebenzisana kwayo. Ukuba uhlala ngaphakathi kwenkqubo yendalo yePython kwaye unayo izinto ezinkulu nezintsonkothileyo, IPickle yindlela efanelekileyo. Kubaphuhlisi beJava, Ujongano olunokwenzeka ibonelela ngesakhelo esifunekayo sezicelo ezisasaziweyo kunye nokuqina kwezinto.
Kubalulekile ukukhumbula ukuba ukulandelelanisa idatha akupheleli nje ekuhambiseni idatha; kumalunga ulwakhiwo lwedatha kunye nokufunyanwa kwayoIdatha elandelelaniswe ngokuchanekileyo inokuxhasa uguqulelo kwaye ikuvumela ukuba utsale ulwazi ngokufanelekileyo ulubuyisele kwifomathi yalo yokuqala ngaphandle kokwaphula yonke ingqiqo yesicelo sakho.
Ukukwazi ukuguqula izinto zibe yimijelo ye-byte okanye imitya kwenza abaphuhlisi bakwazi lawula idatha kwiiplatifomu ezahlukeneyo kunye neelwimi ngokufanelekileyo. Ngokusebenzisa izixhobo ezifana neJSON ukuze kufikeleleke, ubunzima bePickle for Python, kunye neendlela zokunxibelelana ezizinikeleyo zeJava ukuze kuqinisekiswe uzinzo, unokuqinisekisa ukuba ulwazi luhlala lukhona. ikhuselekile kwaye ayiguquguquki nokuba igcinwa okanye idluliselwa phi.
