User.java

public class User implements Serializable{

	private static final long serialVersionUID = 1L;

	private int id;

	private String username;

	private String password;

	private String sex;

	private Date birthday;

	private String email;

	private int type;

	private Set<Order> orders;

}

Order.java

public class Order implements java.io.Serializable {



	private static final long serialVersionUID = 1L;

	private int id;

	/*

	 * 订单编号

	 */

	private String orderCode;

	private User user;

}

Order.hbm.xml

<hibernate-mapping package="entity">

	<class name="Order" table="order">

		<id name="id" column="id" type="integer">

			<generator class="native"></generator>

		</id>

		<property name="orderCode" type="string">

			<column name="order_code"></column>

		</property>

		

	</class>

</hibernate-mapping>

User.hbm.xml

<hibernate-mapping package="entity">

	<class name="User" table="user">

		<id name="id" column="id" type="integer">

			<generator class="native"></generator>

		</id>

		<property name="username" type="string">

			<column name="username"></column>

		</property>

		<property name="password" type="string">

			<column name="password"></column>

		</property>

		<property name="sex" type="string">

			<column name="sex"></column>

		</property>

		<property name="birthday" type="timestamp">

			<column name="birthday"></column>

		</property>

		<property name="email" type="string">

			<column name="email"></column>

		</property>

		<property name="type" type="integer">

			<column name="type"></column>

		</property>

		<set name="orders" inverse="true" cascade="all">

			<key column="user_id"></key>

			<one-to-many class="Order"/>

		</set>

	</class>

</hibernate-mapping>

hibernate.cfg.xml

<hibernate-configuration>

    <session-factory>

        <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>

        <property name="hibernate.connection.url" >jdbc:mysql://localhost:3306/reg</property>

        <property name="hibernate.connection.username">root</property>

        <property name="hibernate.connection.password">root</property>

        <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>

        <property name="hibernate.hbm2ddl.auto">all</property>

        <property name="current_session_co