HttpWebResponse yog dab tsi?
HttpWebResponse yog dab tsi?

Video: HttpWebResponse yog dab tsi?

Video: HttpWebResponse yog dab tsi?
Video: HttpWebRequest: REST and Facebook Video Upload - Part 1 of 5 2024, Kaum ib hlis
Anonim

Cov chav kawm no muaj kev txhawb nqa rau HTTP tshwj xeeb kev siv cov khoom thiab cov txheej txheem ntawm WebResponse chav kawm. Cov HttpWebResponse chav kawm yog siv los tsim HTTP ib leeg neeg thov kev thov uas xa HTTP thov thiab tau txais HTTP cov lus teb. Kaw txoj kev kaw cov lus teb thiab tso tawm qhov kev sib txuas rau rov siv dua.

Qhov sib thooj, WebRequest yog dab tsi?

WebRequest yog chav kawm paub daws teeb meem uas ua qauv rau sab kev thov ntawm kev lag luam siv rau kev nkag mus rau cov ntaub ntawv los ntawm Is Taws Nem. Cov chav kawm uas muab los ntawm WebRequest yuav tsum override cov tswv cuab hauv qab no WebRequest chav kawm nyob rau hauv ib qho kev cai tshwj xeeb: System. Net.

Tsis tas li ntawd, WebClient C# yog dab tsi? Cov WebClient chav kawm muab ntau txoj hauv kev xa cov ntaub ntawv mus rau lossis tau txais cov ntaub ntawv los ntawm ib qho chaw hauv zos, intranet, lossis cov peev txheej hauv Internet tau txheeb xyuas los ntawm URI. Cov WebClient chav kawm siv WebRequest chav kawm los muab kev nkag mus rau cov peev txheej. Retrieves ib kwj siv los xa cov ntaub ntawv mus rau qhov chaw.

Ib yam li ntawd, koj tuaj yeem nug, WebRequest C# yog dab tsi?

Cov WebRequest yog ib chav kawm abstract. Yog li koj yeej tsis siv nws ncaj qha. Koj siv nws los ntawm nws muab cov chav kawm - HttpWebRequest thiab FileWebRequest. Koj siv Create method of WebRequest tsim ib qho piv txwv ntawm WebRequest . GetResponseStream rov qab cov ntaub ntawv ntws.

System Net WebException yog dab tsi?

Cov WebException chav kawm yog muab pov tseg los ntawm cov chav kawm uas nqis los ntawm WebRequest thiab WebResponse uas siv cov txheej txheem pluggable rau kev nkag mus rau Is Taws Nem. Thaum twg WebException raug pov los ntawm ib tug xeeb leej xeeb ntxwv ntawm chav kawm WebRequest, cov cuab yeej teb muab cov lus teb hauv Internet rau daim ntawv thov.

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