Video: Dab tsi yog RMI hauv qhov system faib?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Kev tshaj tawm. RMI sawv rau Tej thaj chaw deb Method Invocation . Nws yog ib tug mechanism uas tso cai rau ib yam khoom nyob rau hauv ib tug qhov system (JVM) kom nkag tau / hu rau ib qho khoom uas khiav ntawm lwm JVM. RMI yog siv los tsim faib daim ntawv thov; nws muab kev sib txuas lus nyob deb ntawm Java program.
Yog li ntawd, RMI txhais li cas?
Cov RMI (Remote Method Invocation) yog API uas muab cov txheej txheem los tsim cov ntawv thov faib hauv java. Cov RMI tso cai rau ib qho khoom hu rau txoj hauv kev ntawm ib qho khoom uas khiav hauv lwm JVM. Cov RMI muab kev sib txuas lus tej thaj chaw deb ntawm daim ntawv thov siv ob yam khoom thiab cov pob txha.
Ib yam li ntawd, RMI siv qhov twg? RMI yog ib tug ntshiab java tov rau tej thaj chaw deb txheej txheem hu (RPC) thiab yog siv los tsim kev faib tawm hauv java. Stub thiab Skeleton cov khoom yog siv rau kev sib txuas lus ntawm cov neeg siv khoom thiab server sab.
Kuj Paub, RPC thiab RMI yog dab tsi hauv kev faib tawm?
RPC (Cov txheej txheem chaw taws teeb hu) thiab RMI ( Tej thaj chaw deb Method Invocation ) yog ob lub tswv yim uas tso cai rau tus neeg siv los hu lossis hu cov txheej txheem uas yuav khiav ntawm lub computer sib txawv ntawm tus neeg siv. Tab sis tsis txhob hla kev hu xov tooj, RMI dhau ib qho kev siv rau cov khoom thiab cov qauv uas raug hu.
Marshalling thiab Unmarshalling hauv RMI yog dab tsi?
Hauv ob peb lo lus, " marshalling "hais txog cov txheej txheem ntawm kev hloov cov ntaub ntawv lossis cov khoom hauv ib qho byte-kwj, thiab " unmarshaling " yog tus txheej txheem thim rov qab ntawm kev hloov cov byte-kwj beack rau lawv cov ntaub ntawv qub lossis khoom siv. Lub hom phiaj ntawm " marshalling / unmarshaling " txheej txheem yog hloov cov ntaub ntawv ntawm cov RMI qhov system.
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