020_ID生成ポリシー_XML_コンフィギュレーション

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
        "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
        "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!--    entity，           -->
<hibernate-mapping package="com.zhuhw.hibernate.model">
<class name="Student">
<!-- id  ；name=id    Student  getid() -->
<id name="id"  >
<generator class="uuid"></generator>
</id>
<property name="name"/>
<property name="age" />
<!-- hibernater      class             -->
</class>
</hibernate-mapping>

package com.zhuhw.hibernate.model;
 
public class Student {
/*private int id;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}*/
private String id;
 
public String getId() {
return id;
}
public void setId(String 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;
}
private String name;
private int age;
}

<?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>
 
        <!-- Database connection settings -->
        <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="connection.url">jdbc:mysql://localhost/hibernate</property>
        <property name="connection.username">root</property>
        <property name="connection.password">root</property>
 
        <!-- JDBC connection pool (use the built-in) -->
        <!--<property name="connection.pool_size">1</property>-->
 
        <!-- SQL dialect -->
        <property name="dialect">org.hibernate.dialect.MySQLDialect</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>
 
        <!-- Drop and re-create the database schema on startup -->
        <property name="hbm2ddl.auto">update</property>
      
        <mapping resource="com/zhuhw/hibernate/model/Student.hbm.xml"/>
 
   <mapping class="com.zhuhw.hibernate.model.Teacher"/>  
    </session-factory>
 
</hibernate-configuration>

package com.zhuhw.hibernate.model;
 
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.AnnotationConfiguration;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
 
public class HibernateIDTest {
 
public static SessionFactory sf = null;
@BeforeClass
public  static void beforeClass(){
sf = new AnnotationConfiguration().configure().buildSessionFactory();
}
 
@Test
public void TestID(){
Student s = new Student();
/*       generator
* s.setId(9);
* */
s.setName("yuzhou1");
s.setAge(1);
 
 
Session session = sf.openSession();
 
session.beginTransaction();
session.save(s);
session.getTransaction().commit();
session.close();
}
 
@AfterClass
public static void afterClass(){
sf.close();
}
}