Yintoni HTTP-protocol?

I iProtokhol yokuGqithisela umbhalo (okanye HTTP) sisiseko lwe data for the World Wide Web. Izivumelwano ezinjalo itekisi yakhiwe esebenzisa links ubhalo (email) phakathi ezalathelwe equlathe iinkcukacha ezithile. Ngoko ke, le ndlela yokutshintshiselana okanye ukudlulisela hypertext.

I-HTTP-protocol usebenza njengomsebenzi kwesicelo-impendulo kwimodeli computing uhanjiselo-server. Umzekelo, umkhangeli we web njengomxumi, kunye iseva ibamba kwisiza. Umntu ithumela HTTP isicelo umyalezo kumncedisi, ukubonelela ngezibonelelo ezithile (iifayile HTML-umzekelo,, kunye nezinye izinto), yaye emva koko ibuyisela umyalezo impendulo. Impendulo iqulathe ulwazi malunga isicelo, kwaye kwakhona ziqulathe umxholo acelwe kumzimba womyalezo.

Umkhangeli i umzekelo osisiseko yiarhente lomsebenzisi (Client). Ezinye iintlobo ze-arhente zomsebenzisi ziquka software esetyenziselwa luhlu yi abanikezi bophendlo, izicelo mobile kunye nezinye izixhobo ezisebenzisa okanye umxholo ukubonisa web.

HTTP-protocol yenzelwe ukunika izinto womnatha eliphakathi ukwandisa okanye ukwenzela unxibelelwano phakathi abaxhasi kunye neseva. Sites ne traffic high kudla wachacha ngokwabo kuzuza cache ngayo abancedisi be web ukubonisa umxholo egameni kwezibonelelo awongamileyo, ukunciphisa ixesha download. iweb efihlakeleyo ngexesha elifanayo kuvumela umsebenzisi ukuba ukunciphisa kwenethiwekhi. Lomncedisi womntu onegunya le elisebenzisa HTTP-based protocol olwahlulwayo kumsebenzi womnatha sobulali ukunika uqhagamshelwano kubathengi, iidilesi hayi routable kwihlabathi, ngokuthi kudluliswa imiyalezo oluvela kwabanye abancedisi yangaphandle.

Iseshoni HTTP yinkqubo ezilandelelana ngayo izicelo kunye neempendulo. Umntu kwabakhwetha isicelo ngokumisela TCP-yokudityaniswa izibuko ethile kumncedisi, nalowo lokugqibela ulalele eli zibuko kwaye elindele ukuba umyalezo yesicelo. Phezu server irisithi uthumela iwonga ukufona umyalezo impendulo. Umzimba womyalezo, njengokuba umthetho, ngumthombo eceliweyo, nangona ingabonakaliswa kwaye umyalezo wemposiso okanye ezinye iinkcukacha.

Ukuba sicinga injongo HTTP protocol, kufanele kuphawulwe ukuba sichaza iindlela ukubonisa intshukumo izakwenziwa lwemvelaphi ezichongiweyo. Ifom ye iinkcukacha uboniso (i data ekhoyo ngaphambili okanye dynamically generated) ixhomekeke ekuphunyezweni umncedisi. Ngokufuthi, le resource uhambelana ifayile okanye uqinisekiso loshicilelo, ibekwe kwi host.

Ezinye iindlela esebenzisa i iProtokhol yokuGqithisela HTTP, zenzelwe kuphela ulwazi retrieval, kwaye akufuneki kuzakuthsintsha imeko umncedisi. Ngamanye amazwi, akukho mfuneko kuba nempembelelo enkulu, ngaphandle kokuba iziphumo engeyongozi kakhulu - esisikhupheli sokuxhaphakileyo okanye ukwandisa amanani undwendwe.

Kwelinye icala, le HTTP-protocol ingasetyenziswa neendlela zenzelwe ngezenzo ebinokuba nempembelelo nokuba kumncedisi okanye ezinye izibonelelo zangaphandle - ukomeleza Iintengiselwano zezimali okanye ukwenza usulelo e-mail. Maxa wambi, iindlela ezinjalo ezisetyenziswa iirobhothi web okanye amanye amaziko kwaye enze izicelo, kungakhathaliseki ukuba imisebenzi ephambili.