Mene ne HTTP-yarjejeniya?

A hypertext aiken (ko HTTP) shi ne tushen data ga World Wide Web. Irin wannan ladabi ne da wani tsari ko fasalin rubutu wanda yana amfani da ma'ana links (hyperlinks) tsakanin nodes dauke da wasu bayanai. Saboda haka, wannan hanyar musayar ko canja wurin ala.

A HTTP-yarjejeniya aiki a matsayin aiki na wani request-martani a abokin ciniki-uwar garke sarrafa kwamfuta model. Alal misali, a web browser a matsayin abokin ciniki, da kuma uwar garke hosting site. A abokin ciniki aika wani HTTP request sako zuwa ga uwar garke, samar da wasu albarkatu (misali, HTML-fayiloli, da kuma sauran kayan), sa'an nan ya kõma mai mayar da martani sako. A mayar da martani ƙunshi bayani game da bukatar, da kuma iya ƙunsar da nema abun ciki a cikin sakon.

The browser ne ainihin misali da wani mai amfani da wakili (abokin ciniki). Sauran iri mai amfani da jamiái hada da software amfani ga Indexing ta search azurtawa, hannu aikace-aikace da kuma sauran albarkatun da suke amfani da ko nuni yanar gizo content.

HTTP-yarjejeniya da aka tsara don samar da tsaka-tsaki cibiyar sadarwa abubuwa don bunkasa ko taimaka sadarwa a tsakanin abokan ciniki da kuma sabobin. Sites tare da babban zirga-zirga ne sau da yawa ƙwato wa kansu wani amfãni daga cache na sabobin yanar gizo cewa nuna abun ciki a madadin na m albarkatun, Munã rage download lokaci. Kache na Web bincike a lokaci guda damar mai amfani don rage cibiyar sadarwa da zirga-zirga. A wakili uwar garke cewa yana amfani da HTTP-tushen yarjejeniya a kan wani gida cibiyar sadarwa zai iya samar da connectivity ga abokan ciniki, ba a duniya routable adiresoshin, da relaying saƙonni daga waje sabobin.

HTTP zaman ne a bi da bi aiwatar da buƙatun da martani. A abokin ciniki qaga wani bukatar ta hanyar kafa wani TCP-dangane da wani takamaiman tashar jiragen ruwa a kan uwar garke, kuma na karshe wanda aka sauraron a kan wannan tashar jiragen ruwa da kuma na jiran a request sako. A kan samu uwar garke aika wani matsayi kange mayar da martani sako. A jikin sakon, kamar yadda mai mulkin, shine mai nema hanya, ko da yake za a iya nuna da kuma wani kuskure sakon ko wasu bayanai.

Idan muka yi la'akari da manufar da HTTP yarjejeniya, ya kamata a lura da cewa shi ya kira hanyoyi don nuna wani mataki da za a yi a gano hanya. A tsari na nuni bayanai (a baya data kasance data ko da kuzari generated) ya dogara da aiwatar da uwar garke. Sau da yawa, hanya yayi dace da fayil ko rubutun, located a kan rundunar.

Wasu hanyoyin da suke amfani da Kama aikin yanar gizo HTTP, an yi nufinsu ne kawai ga bayanai gyara, kuma haka ya kamata ba canza jihar na uwar garke. A wasu kalmomin, ba su da wani tasiri tsanani, fãce ga mun gwada m effects - caching ko kara baƙo statistics.

A daya hannun, da HTTP-yarjejeniya za a iya amfani da irin wannan hanyoyin da ake nufi ga ayyuka da cewa zai iya samun wani tasiri ko dai a kan uwar garke, ko zuwa wasu waje albarkatun - don ƙarfafa kudi ma'amaloli ko yin e-mail watsa. Lokaci-lokaci, irin hanyoyin da ake amfani da yanar gizo mutummutumi ko wasu shafuka da kuma iya sa buƙatun, ko da kuwa da babban ayyuka.