對應工程裏的MVC三層

原創 高小小的家长 2020-02-22 18:35

1 數據持久層（DAO） ：實現對數據庫的更新，刪除，插入，查詢等行爲

2 業務邏輯層（Service）：實現對功能邏輯的處理和計算

3 表現層(JS ,JSP ,JSF ,JSF bean.xhtml) :展現給用戶閱讀的界面，以及系統與用戶交互的行爲

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