Hibernate HelloWorld（第一步）

本地类的实现：

package com.zzk.hibernate.model;

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;
	}
    
    
}

测试类的实现：

package com.zzk.hibernate.model.test;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;

import com.zzk.hibernate.model.Student;

public class StudentTest {
    public static void main(String[] args) {
    	Student s = new Student();
    	s.setId(2);
    	s.setName("s1");
    	s.setAge(1);
    	
    	Configuration cfg = new Configuration();
        SessionFactory sf = cfg.configure().buildSessionFactory();
    	Session session = sf.openSession();
    	session.beginTransaction();//执行操作
        session.save(s);
        session.getTransaction().commit();//提交
        session.close();
        sf.close();
    }
}

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
        "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
        "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping package="com.zzk.hibernate.model">
     <class name="Student">
		<id name="id" />
		<property name="name" />
		<property name="age" />
     </class>
 
</hibernate-mapping>

hibernate.cfg.xml：配置文件：

<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
        "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
        "http://hibernate.sourceforge.net/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">root</property>
        <property name="connection.password">root</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.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/zzk/hibernate/model/Student.hbm.xml"/>

    </session-factory>

</hibernate-configuration>