hibernate配置

    刚学hibernate,记录下学习心得

   1. 下载hibernate、mysql-connector、slf4j

    下载完成后，把hibernate文件夹下的dist\lib\required目录下的jar都导入；把slf4j下的slf4j-nop-x.x.x.jar导入；

   2. 写hibernate.cfg.xml文件

 

<?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:3306/hb</property>
        <property name="connection.username">root</property>
        <property name="connection.password">123456</property>

        <!-- SQL dialect -->
        <property name="dialect">org.hibernate.dialect.MySQLDialect</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>
	
        <mapping resource="test/Student.hbm.xml"/>

    </session-factory>

</hibernate-configuration>

   3. 建java对象

 

package test;

public class Student {
	private int id;
	private String name;
	private int age;

	public Student() {
	}

	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;
	}

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub

	}

}

    4. 在test包下创建文件Student.hbm.xml

 

<hibernate-mapping package="test">

    <class name="Student" table="student">
        <id name="id"></id>
        <property name="age"/>
        <property name="name"/>
    </class>

</hibernate-mapping>

    5. 创建数据库

    6. 编写测试类

 

public class StudentTest {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		Student stu = new Student();
		stu.setId(1);
		stu.setAge(1);
		stu.setName("stul");
		
		Configuration cfg = new Configuration();
		SessionFactory sessionFactory = cfg.configure().buildSessionFactory();
		Session session = sessionFactory.openSession();
		session.beginTransaction();
		session.save(stu);
		session.getTransaction().commit();
		session.close();
		sessionFactory.close();

	}

}