Hibernate environment setup and configuration method of Hello world configuration file version

This article illustrates the Hibernate environment setup and configuration. Share with you for your reference, as follows:

1. Download hibernate jar package: hibernate-release-4.3.5.Final, import the necessary jar package, hibernate-release-4.3.5.Final \lib\required

There are 10 jar packages included.

2. Create a new java project.

3. Learn to build User Library yourself:

(a) project right-click -- build path -- configure build path -- add library.
(b) select User-library and create a new library named hibernate.
Add the jar package required by hibernate to library (path: hibernate-release-4.3.5.Final \lib\required), hello world, world, c, c, c, hibernate, hibernate

4. Introduce jdbc driver for database. mysql: mysql-connector-java-5.1.7-bin.jar

(a) create database:

create database hibernate;

(b) switch database:

use hibernate;

(c) create Student table:

create table Student(id int primary key,name varchar(20),age int);

5. hibernate configuration file hibernate.cfg.xml, copy is strongly recommended in the help document under the hibernate-release-4.3.5.Final \documentation\manual\ en-US \html_single path.

Location: 1.1.4. Hibernate configuration. After content modification:

<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
  "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
  "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
 <session-factory>
  <!-- Database connection settings -->
  <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
  <property name="connection.url">jdbc:mysql://localhost/hibernate</property>
  <property name="connection.username">XXX</property>
  <property name="connection.password">XXXX</property>
  <!-- JDBC connection pool (use the built-in) -->
  <!--
  <property name="connection.pool_size">1</property>
   -->
  <!-- SQL dialect -->
  <property name="dialect">org.hibernate.dialect.MySQLDialect</property>
  <!-- Enable Hibernate's automatic session context management -->
  <property name="current_session_context_class">thread</property>
  <!-- Disable the second-level cache -->
  <property name="cache.provider_class">org.hibernate.cache.internal.NoCacheProvider</property>
  <!-- Echo all executed SQL to stdout -->
  <property name="show_sql">true</property>
  <!-- Drop and re-create the database schema on startup -->
  <!--
  <property name="hbm2ddl.auto">update</property>
  -->
  <mapping resource="com/huxing/hibernate/model/Student.hbm.xml"/>
 </session-factory>
</hibernate-configuration>

Create Student class:

public class Student {
  private int id;
  private String name;
  private int age;
 public int getId() {
  return id;
 }
 public void setId(int id) {
  this.id = id;
 }
 public String getName() {
  return name;
 }
 public void setName(String name) {
  this.name = name;
 }
 public int getAge() {
  return age;
 }
 public void setAge(int age) {
  this.age = age;
 }
}

Create a mapping file for Student: Student.hbm.xml

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
  "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
  "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<hibernate-mapping package="com.huxing.hibernate.model">
 <class name="Student" table="student">
  <id name="id" column="id">
  </id>
  <property name="name" type="string" column="name"/>
  <property name="age" type="int" column="age"/>
 </class>
</hibernate-mapping>

Final test:

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import com.huxing.hibernate.model.Student;
public class StudentTest {
 public static void main(String[] args) {
  Student a = new Student();
  a.setId(123);
  a.setAge(32);
  a.setName("hello hibernate!");
  Configuration cfg = new Configuration();
  SessionFactory cf = cfg.configure().buildSessionFactory();
  Session session = cf.openSession();
  session.beginTransaction();
  session.save(a);
  session.getTransaction().commit();
  session.close();
  cf.close();
 }
}

I hope this article is helpful for you to design Hibernate framework.