A simple hibernate Project

Preparation tools

• Hibernate3.5.3
• Eclipse Java ee ide for Web Developers. Version: Helios
• MySQL5.5

Environment configuration setup

• Install and configure Eclipse, JRE, and other environments.Configure system environment variables
• Download the hibernate version

Create a simple database

Create a database table in MySQL

create database testssh;use testssh;create table user(    u_id int not null auto_increment,    u_name varchar(30),    primary key(u_id));

Create a hibernate Project

1. File-> New-> Dynamic Web Project-> Fill in the Project information (hibernatedemo)-> finish the Project name in this example: hibernatedemo

2. Copy the hibernate jar package to the project hibernatedemo/WebContent/WEB-INF/lib

3. Compile hibernate. cfg. xml in the src directory to configure the database information.

<!DOCTYPE hibernate-configuration PUBLIC"-//Hibernate/Hibernate Configuration DTD 3.0//EN""http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

4. Create the com. entity package under src for object objects, write User-class, and write the User. hbm. xml ing file under the same directory. You can use XML to configure ing or annotate the ing to database tables.
User. java

package com.entity;public class User {    private Integer id;    private String name;    public Integer getId() {        return id;    }    public void setId(Integer id) {        this.id = id;    }    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }}

Compile User. hbm. xml and configure hibernate ing in hibernate. cfg. xml.
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN""http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

5. Test. Compile the test class in the com. test package

public class Testhibernate {    public static void main(String[] args) {        Configuration cfg=new Configuration().configure();        SessionFactory sf=cfg.buildSessionFactory();        Session session =sf.openSession();        Transaction tx=session.beginTransaction();        User user=(User)session.get(User.class, 1);        System.out.println(user.getId());        System.out.println(user.getName());        session.close();        sf.close();    }}

6. The configuration process of the entire hibernate project is finished!