Review and start again——First Period JAVA web Program hotelmanagement：5.DAO mode summary

最新推荐文章于 2024-11-27 16:20:46 发布

原创最新推荐文章于 2024-11-27 16:20:46 发布 · 185 阅读

0 ·

CC 4.0 BY-SA版权

JAVA成长专栏收录该内容

16 篇文章

订阅专栏

本文介绍了DAO（Data Access Object）模式的概念及其在J2EE应用中的重要性。为了构建一个健壮的应用程序，所有对数据源的访问操作都应该通过一个公共API进行抽象封装。文章通过实例图片展示了如何使用DAO类来实现对数据库的修改、添加和删除操作。

There’s no other sections in this blog.

DAO can be seen as a class or an object.

DAO：Data Access Object.
In order to build a robust J2EE application, all access operations to the data source should be abstractly encapsulated in a public API —— DAO.

The general operation to modify, add, delete the database operation steps are very similar, just write a public class——DAO class.
Modify, add, delete the database operation can directly call the DAO class.

The following demostration pictures come from https://www.cnblogs.com/yunfeioliver/p/8013310.html.
在这里插入图片描述

Data Access Object数据访问类
robust 健壮的
be abstractly encapsulated被抽象封装