DAO模式圖解

原創 hongshan50 2020-02-21 23:50

DAOFactory:對所有代理類的靜態封裝，返回代理類。

Proxy：是對DAO的實現，裏面對impl配置數據庫連接，然後對impl進行封裝，裏面可以進行安全性檢查或者添加其他操作。

Impl：對實現DAO接口，是接口的具體實現。

DAO:是操作的藉口，裏面傳遞的參數是vo對象類。

VO:相當於表中的記錄。



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