Video: Dab tsi yog lim saw hauv servlets?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
A FilterChain yog ib yam khoom muab los ntawm tus servlet ntim rau tus tsim tawm muab kev pom rau hauv daim ntawv thov saw hlau ntawm qhov kev thov lim rau cov peev txheej.
Yog li ntawd, dab tsi yog lim hauv servlets?
A Servlet lim yog ib yam khoom uas tuaj yeem cuam tshuam HTTP thov tsom ntawm koj lub vev xaib thov. A servlet lim tuaj yeem cuam tshuam thov ob qho tib si rau servlets , JSP's, HTML cov ntaub ntawv lossis lwm cov ntsiab lus zoo li qub, raws li qhia hauv daim duab hauv qab no: A Servlet Lim hauv Java Web Application.
Tsis tas li ntawd, chain doFilter yog dab tsi? Cov doFilter txoj kev ntawm Filter yog hu los ntawm lub thawv txhua zaus ib qho kev thov / teb cov khub dhau los ntawm saw hlau vim tus neeg thov kev pab rau qhov kawg ntawm qhov saw hlau . Cov FilterChain dhau mus rau txoj kev no tso cai rau lub Lim kom dhau qhov kev thov thiab cov lus teb rau qhov chaw tom ntej hauv qhov saw hlau.
Ntawm no, vim li cas peb thiaj siv cov lim dej hauv servlets?
Cov lim yog siv los cuam tshuam thiab ua cov lus thov ua ntej lawv yog xa mus rau servlets (nyob rau hauv cov ntaub ntawv thov). Cov lim yog siv los cuam tshuam thiab ua cov lus teb ua ntej lawv yog xa rov qab rau tus neeg siv khoom los ntawm a servlet . Vim li cas lawv siv ? - Cov lim tau ua kev kuaj xyuas kev ruaj ntseg.
Thaum twg servlet lim hu?
javax ua. servlet A lim yog ib yam khoom uas ua lim ua hauj lwm ntawm ob qhov kev thov rau ib qho kev pab (a servlet los yog cov ntsiab lus zoo li qub), lossis ntawm cov lus teb los ntawm cov peev txheej, lossis ob qho tib si. Cov lim ua haujlwm lim hauv txoj kev doFilter.
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