Video: Dab tsi yog c3p0 hauv Hibernate?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Los ntawm lub neej ntawd, Hibernate siv JDBC kev sib txuas txhawm rau cuam tshuam nrog cov ntaub ntawv. Hauv kev tsim khoom, koj yuav siv lub pas dej sib txuas sab nraud los ntawm kev siv cov ntaub ntawv sib txuas los ntawm JNDI lossis lub pas dej sib txuas sab nraud uas tau teeb tsa los ntawm qhov tsis muaj thiab classpath. C3p 0 yog ib qho piv txwv ntawm kev sib txuas sab nraud.
Ib yam li ntawd, nws tau nug, siv c3p0 hauv Hibernate yog dab tsi?
Yuav ua li cas configure lub C3p 0 kev sib txuas hauv pas dej Hibernate . Kev sib txuas pas dej ua ke yog qhov zoo rau kev ua haujlwm, vim nws tiv thaiv Java daim ntawv thov tsim kev sib txuas txhua zaus thaum cuam tshuam nrog cov ntaub ntawv thiab txo tus nqi qhib thiab kaw kev sib txuas.
Qhov thib ob, c3p0 kev sib txuas ua haujlwm li cas? Kev sib txuas sib txuas nrog rau c3p 0 Lub tsev qiv ntawv c3p 0 yog lub tsev qiv ntawv yooj yim-rau-siv rau kev ua ib txwm JDBC tsav tsheb "kev lag luam-npaj" los ntawm kev txhawb nqa lawv nrog kev ua haujlwm tau teev tseg los ntawm jdbc3 spec thiab kev xaiv txuas ntxiv rau jdbc2. Raws li version 0.9. 5, c3p 0 txhawb siab rau jdbc4 spec.
Ib sab saum toj, c3p0 yog dab tsi?
c3p 0 yog lub tsev qiv ntawv yooj yim-rau-siv rau augmenting ib txwm (DriverManager-raws li) JDBC tsav tsheb nrog JNDI-bindable DataSources, suav nrog DataSources uas siv Kev Sib Txuas thiab Nqe Lus Tshaj Tawm, raws li tau piav qhia los ntawm jdbc3 spec thiab jdbc2 std extension. Nco tseg: Tam sim no kev txhim kho snapshots tam sim no muaj nyob rau ntawm github.
Lub pas dej sib txuas twg yog qhov zoo tshaj plaws rau hibernate?
Raws li kuv paub C3P0 feem ntau yog siv thiab yooj yim pas kev sib txuas nrog Hibernate . C3P0 yog qhov qhib pas kev sib txuas qe muaj a Hibernate pob uas koj tuaj yeem ntxiv raws li kev vam khom rau koj qhov project thiab koj npaj txhij los teeb tsa pas dej ua ke . Nws yog ib qho yooj yim heev rau configure thiab siv nyob rau hauv peb tej yaam num nrog Hibernate.
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