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Description: 用struts2、JPA、JSON写的一个CRUD的例子-Using struts2, JPA, JSON write a CRUD example
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Size: 12948480 |
Author: ccbobo |
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Description: JPA增删改查例子,放到项目中可直接运行-JPA CRUD search examples can be run directly into the project
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Size: 22853632 |
Author: chenjian |
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Description: Java Travel Application using JPA, DAO.
Source Code define CRUD and Search.
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Size: 5120 |
Author: Marcelo |
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Description: JSF+JPA 的MyEclipse官方Blog实例。MyBlogJSFJPA 是一个简单的使用 JSF 作为界面和JPA作为持久层的简单的网络博客应用。这个项目展示了对单个博客数据库表进行增删改查的功能。同时这个项目已经事先在MyEclipse 自带的服务器环境中配置好了,例如内置的 Tomcat 6 和 Derby 数据库,数据
库中已经包含了一个 MyEclipse 6.0出厂时就带的示例数据库。
项目的结构由如下几个部分组成:
1. 一个 JSF 页面链接到4 个对提交的数据库表进行增删改查的功能模块
2. 一个受管Bean 作为维护 UI 状态的控制器并处理持久化操作
3. 一个发帖的 JPA 实体以及一个处理持久化的 PostDAO
4. 在 MyEclipse 中已经自带了这个例子所需要的 MYBLOG 数据库-MyEclipse JSF+ JPA s Official Blog instances. MyBlogJSFJPA is a simple to use JSF
As a JPA as a persistence layer interface and a simple network blog application. This project demonstrated a single
Blog database table CRUD functions. While this project has been pre-self in MyEclipse
With the server environment is configured, such as the built-in Tomcat 6 and the Derby database, the number of
According to
Library already contains a MyEclipse 6.0 is shipped with the sample on the database.
Project structure consists of the following parts:
1. A JSF page link to 4 tables submitted to the database function module CRUD
2. A Managed Bean as a maintenance controller and handle the UI state persistence operations
3. A post JPA entities and a handle persistent PostDAO
4. in MyEclipse already comes with this case need MYBLOG database
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Size: 480256 |
Author: 金颉 |
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Description: S2SH JPA 注释版 实现简单CRUD-S2SH JPA annotation implements simple CRUD
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Size: 20814848 |
Author: wtw |
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Description: Hibernate基本概念
1)Hibernate是什么,有什么作用和好处
Hibernate是一个数据库访问框架,用于实现对数据库的增删改查操作。使用Hibernate框架可以简化数据库访问操作,要程序员将更多的经历放在业务层编写上。
原有JDBC操作数据库存在一些问题,主要有以下几个方面
a)需要编写大量复杂的SQL语句
b)需要设置大量的SQL参数或者将ResultSet取值封装成实体对象
c)当数据库移值时,需要修改部分SQL语句和操作
使用Hibernate框架可以解决以上问题。
2)Hibernate实现原理
设计原理:ORM(Object Relation Mapping)对象关系映射。意思是将程序中的实体对象和关系数据库表中的一行记录进行映射。这样在程序中使用该工具就可以将一个对象写入数据表,或者将数据表记录自动封装成一个对象返回。
可以这样理解,利用Hibernate可以将user对象直接更新到数据表中;查询时可以将数据表记录以user对象形式返回。中间的JDBC+SQL操作对程序员来说不用关心,在Hibernate底层封装好了。
同类框架还有一些,比如iBATIS,JPA等。-Hibernate basic concepts
1) Hibernate is, what role and benefits
Hibernate is a database access framework for the realization of the database CRUD operations. Using Hibernate framework can simplify database access operations, to more experienced programmers will be placed on the preparation of the business layer.
Original database JDBC operations there are some problems, mainly in the following aspects
a) the need to write a lot of complex SQL statements
b) the need to set a large number of SQL parameters or values will be packaged into a solid object ResultSet
c) When the database shift values , you need to modify some SQL statements and operations
Using Hibernate framework
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Size: 41984 |
Author: 说法 |
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Description: 本书介绍了如何使用JPA来对数据库进行持久化,并对数据进行增删改查等操作。英文版-This book describes how to use JPA persistence to the database, and the data CRUD operations. English
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Size: 6688768 |
Author: yidahia |
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Description: Crud operation with JPA 2.2 and JSF fRAMEwORK
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Size: 144384 |
Author: ahmad |
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