hibernate注解配置，

1、配置文件代码

<?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>


	<property name="connection.driver_class">
		com.mysql.jdbc.Driver
	</property>
	<property name="connection.url">
		jdbc:mysql://localhost/test
	</property>
	<property name="connection.username">root</property>
	<property name="connection.password">root</property>
	<property name="dialect">
		org.hibernate.dialect.MySQLDialect
	</property>
	<!--
		<property name="connection.driver_class">oracle.jdbc.driver.OracleDriver</property>
		<property name="connection.url">jdbc:oracle:thin:@localhost:1521:SXT</property>
		<property name="connection.username">scott</property>
		<property name="connection.password">tiger</property>
		<property name="dialect">org.hibernate.dialect.OracleDialect</property>
	-->

	<!-- JDBC connection pool (use the built-in) -->
	<property name="connection.pool_size">1</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>
	<property name="format_sql">true</property>
	<mapping class="com.mr.cheng.entity.Person" />


</session-factory>

</hibernate-configuration>

2、实体类

package com.mr.cheng.entity;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;

@Entity
public class Person {
	private Integer id;
	private String name;
	private int age;
	private double price;
	@Id
	@GeneratedValue
	public Integer getId() {
		return id;
	}
	@Override
	public String toString() {
		return "Person [id=" + id + ", name=" + name + ", age=" + age
				+ ", price=" + price + "]";
	}
	public void setId(Integer 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;
	}
	public double getPrice() {
		return price;
	}
	public void setPrice(double price) {
		this.price = price;
	}
}

3、测试类

package com.mr.cheng.test;

import org.hibernate.SessionFactory;
import org.hibernate.cfg.AnnotationConfiguration;
import org.hibernate.tool.hbm2ddl.SchemaExport;
import org.junit.Test;

public class HibernateTest {
private static SessionFactory sessionFactory;
	
	//@BeforeClass
	public static void beforeClass() {
			sessionFactory = new AnnotationConfiguration().configure().buildSessionFactory();
	}
	//@AfterClass
	public static void afterClass() {
		sessionFactory.close();
	}
	
	
	
	@Test
	public void testSchemaExport() {
		new SchemaExport(new AnnotationConfiguration().configure()).create(false, true);
	}
	
	public static void main(String[] args) {
		beforeClass();
	}
}