Video: Cov ntaub ntawv a.jasper yog dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Cov JASPER cov ntaub ntawv extension yog siv rau cov ntaub ntawv uas yog tsim los ntawm JasperReports. Cov no cov ntaub ntawv muaj cov JASPER extension kuj tseem hu ua JasperReports Data Cov ntaub ntawv . Cov no cov ntaub ntawv muaj cov ntsiab lus ntawm tsab ntawv ceeb toom tau khaws tseg hauv hom binary thiab muab tso ua ke los ntawm ib qho. JRXML ntaub ntawv.
Tom qab ntawd, cov ntaub ntawv Jrxml yog dab tsi?
Cov ntaub ntawv siv los ntawm JasperReports, lub tsev qiv ntawv Java siv los tsim cov ntawv ceeb toom programmatically; muaj cov ntaub ntawv tsim qauv txhais hauv hom XML; suav nrog cov qauv tsim xws li daim ntawv tshaj tawm layout, cov ntawv nyeem, cov duab, kab kos, tsis muaj, thiab cov hloov pauv.
Ib yam li ntawd, jaspersoft siv rau dab tsi? Jaspersoft cov ntaub ntawv tsom xam software yog siv los ua qauv, tswj, thiab pom cov ntaub ntawv siv OLAP lossis hauv-nco tsom xam txhawm rau txheeb xyuas cov teeb meem, pom cov qauv, thiab txiav txim siab zoo dua sai.
Qhov thib ob, qhov txawv ntawm Jasper thiab Jrxml yog dab tsi?
jrxml ua yog tib neeg nyeem tau XML cov ntaub ntawv uas muaj cov qauv ntawv tshaj tawm xws li cov qauv qhia thiab nws cov kev cai formatting.. jasper yog cov ntaub ntawv sau qhia template i.e. compiled.
Kuv yuav kho cov ntaub ntawv Jrxml li cas?
Kho kom raug ib daim ntawv qhia. Nyob rau hauv Repository Explorer, mus rau tot eh report unit, right-click nws JRXML file , thiab xaiv Qhib hauv Editor . Cov JRXML los ntawm qhov chaw cia khoom yog khaws cia hauv zos hauv koj qhov chaw ua haujlwm; lub neej ntawd qhov chaw nyob hauv qab koj cov neeg siv phau ntawv teev npe hauv koj lub operating system.
Pom zoo:
Cov ntaub ntawv hom thiab cov qauv ntaub ntawv yog dab tsi?
Cov qauv ntaub ntawv yog ib txoj hauv kev piav qhia txog ib txoj hauv kev los npaj cov ntaub ntawv kom ua haujlwm andalogrithms tuaj yeem siv tau yooj yim dua. Ib hom ntaub ntawv piav qhia txog cov ntaub ntawv uas txhua tus sib koom ua ke. Piv txwv li tus lej cov ntaub ntawv hom piav qhia txhua tus lej uas lub khoos phis tawj tuaj yeem ua tau
Dab tsi yog qhov txawv ntawm XML cov ntaub ntawv thiab cov ntaub ntawv sib txheeb?
Qhov sib txawv loj ntawm XML cov ntaub ntawv thiab cov ntaub ntawv sib txheeb Ib daim ntawv XML muaj cov ntaub ntawv hais txog kev sib raug zoo ntawm cov ntaub ntawv rau ib leeg nyob rau hauv daim ntawv ntawm hierarchy. Nrog rau tus qauv kev sib raug zoo, tib hom kev sib raug zoo uas tuaj yeem txhais tau yog cov lus niam txiv thiab cov rooj sib raug zoo
Dab tsi yog qhov sib txawv ntawm pab pawg cov ntaub ntawv thiab cov ntaub ntawv tsis yog pawg?
Ob leeg yog cov ntaub ntawv muaj txiaj ntsig ntawm cov ntaub ntawv tab sis qhov sib txawv ntawm lawv yog cov ntaub ntawv tsis muaj ntaub ntawv yog rawdata. Qhov no txhais tau hais tias nws nyuam qhuav tau sau tab sis tsis txheeb rau hauv ib pawg lossis cov chav kawm. Ntawm qhov tod tes, groupeddata yog cov ntaub ntawv uas tau teeb tsa ua pawg los ntawm cov ntaub ntawv nyoos
Vim li cas kem taw qhia cov ntaub ntawv khaws cia ua cov ntaub ntawv nkag ntawm disks sai dua li kab qhia cov ntaub ntawv khaws cia?
Kem oriented databases (aka columnar databases) yog qhov tsim nyog rau kev ntsuas kev ua haujlwm ntau dua vim tias cov ntaub ntawv hom ntawv (kem hom) qiv nws tus kheej kom nrawm dua cov lus nug ua - scans, aggregation thiab lwm yam. Ntawm qhov tod tes, kab oriented databases khaws ib kab (thiab tag nrho nws. kab) contiguously
Dab tsi yog cov teeb meem ntawm kev tswj cov ntaub ntawv hauv cov ntaub ntawv ib txwm muaj?
Nyob rau tib lub sijhawm, qhov kev tswj hwm cov ntaub ntawv ib puag ncig tsim teeb meem xws li cov ntaub ntawv rov ua dua thiab tsis sib xws, cov kev pab cuam-cov ntaub ntawv dependence, inflexibility, tsis muaj kev ruaj ntseg, thiab tsis muaj cov ntaub ntawv sib qhia thiab muaj