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();    }}

配置文件Student.hbm.xml：

<?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>