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package mypack;

public class Teacher {

private Long id;

private String teacherName;

public Teacher() {

}

public Teacher(String teacherName) {

    this.teacherName = teacherName;

}

}

getter、setter省略了

Student.java

package mypack;

public class Student {

private Long id;

private String studentName;

private Teacher teacher;

public Student() {

}

public Student(String studentName, Teacher teacher) {

    this.studentName = studentName;

    this.teacher = teacher;

}

}

getter、setter省略了

 

3.   hibernate.properties

## Oracle

hibernate.dialect net.sf.hibernate.dialect.Oracle9Dialect

hibernate.dialect net.sf.hibernate.dialect.OracleDialect

hibernate.connection.driver_class oracle.jdbc.driver.OracleDriver

hibernate.connection.username jbcm

hibernate.connection.password jbcm

hibernate.connection.url jdbc:oracle:thin:@localhost:1521:wsy

4.   Teacher.hbm.xml和Student.hbm.xml

Teacher.hbm.xml

<?xml version="1.0"?>

<!DOCTYPE hibernate-mapping

PUBLIC "-//Hibernate/Hibernate Mapping DTD 2.0//EN"

"http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">

<hibernate-mapping >

<class name="mypack.Teacher" table="teachers" >

    <id name="id" type="long" column="ID">

      <generator class="increment"/>

    </id>

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

        <column name="teacherName" length="15" />

    </property>

</class>

</hibernate-mapping>

Student.hbm.xml

<?xml version="1.0"?>

<!DOCTYPE hibernate-mapping

PUBLIC "-//Hibernate/Hibernate Mapping DTD 2.0//EN"

"http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">

<hibernate-mapping >

<class name="mypack.Student" table="students" >

    <id name="id" type="long" column="ID">

      <generator class="increment"/>

    </id>

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

        <column name="studentName" length="15" />

    </property>

   <many-to-one

        name="teacher"

       column="teacher_id"

        class="mypack.Teacher"

        cascade="save-update"

       />

</class>

</hibernate-mapping>