Hibernate自动生成数据库中的表

在第一个Hibernate项目的基础上，创建了一个Goods实体类，并定义三个属性id，name，price。

package demo1;

public class Goods {
	
	private int id;
	private String name;
	private int price;
	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 getPrice() {
		return price;
	}
	public void setPrice(int price) {
		this.price = price;
	}
	
	

}

创建该实体类的映射文件Goods.hbm.xml

<?xml version="1.0"?>
<!--
  ~ Hibernate, Relational Persistence for Idiomatic Java
  ~
  ~ License: GNU Lesser General Public License (LGPL), version 2.1 or later.
  ~ See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
  -->
<!DOCTYPE hibernate-mapping PUBLIC
	"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
	"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">


<hibernate-mapping >

	<class name="demo1.Goods" table="t_Good">
		<id name="id" type="int">
			<generator class="identity"/>
		</id>
		<property name="name" type="string"/>
		<property name="price" type="int"/>		
	</class>
	
</hibernate-mapping>

在Hibernate.cfg.xml中添加生成表的语句，这里我用的是update，好处在于如果有表就创建，没表就不创建。create-drop则是在执行SessionFactory时创建表，调用close方法时删除表。

<!--
  ~ Hibernate, Relational Persistence for Idiomatic Java
  ~
  ~ License: GNU Lesser General Public License (LGPL), version 2.1 or later.
  ~ See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
  -->
<!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>
	
		<property name="show_sql">true</property>
		<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
		<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
		<property name="hibernate.connection.url">jdbc:mysql://localhost/mysql</property>
		<property name="hibernate.connection.username">root</property>
		<property name="hibernate.connection.password">root</property>
		<property name="hibernate.hbm2ddl.auto">update</property>
		
		
		<mapping resource="demo1/User.hbm.xml"/>
		<mapping resource="demo1/Goods.hbm.xml"/>
		
	</session-factory>
</hibernate-configuration>

最后在mysql中查询建的表，因为没有数据，所以显示为空