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【正文】一、DAO模式简介 DAO即Data Access Object，数据访问接口。数据访问：故名思义就是与数据库打交道。夹在业务逻辑与数据库资源中间。 DAO模式实际上是两个模式的组合，即Data Accessor (数据访问者)模式和 Active Domain Object(领域对象)模...

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【正文】首先需要回顾一下上一篇文章中的内容：MySQL数据库学习笔记（九）----JDBC的PreparedStatement接口重构增删改查一、JDBC事务处理：我们已经知道，事务的概念即：所有的操作要么同时成功，要么同时失败。在MySQL中提供了Commit、Rollback命令进行事务的...

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【正文】首先需要回顾一下上一篇文章中的内容：MySQL数据库学习笔记（八）----JDBC入门及简单增删改数据库的操作一、ResultSet接口的介绍：对数据库的查询操作，一般需要返回查询结果，在程序中，JDBC为我们提供了ResultSet接口来专门处理查询结果集。 Statement通过以...

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