小海賊的夜晚

    <session-factory>

        <!-- 顯示實際操作數據庫時的SQL -->
        <property name="show_sql">true</property>
        <!-- SQL方言，這里設定的是MySQL -->
        <property name="dialect">net.sf.hibernate.dialect.MySQLDialect</property>
        <!-- JDBC驅動程式 -->
        <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
        <!-- JDBC URL -->
        <property name="connection.url">jdbc:mysql://localhost/jiejie</property>
        <!-- 用戶名 -->
        <property name="connection.username">root</property>
        <!-- 密碼-->
        <property name="connection.password"></property>

        <!-- 映射文件 -->
        <mapping resource="User.hbm.xml"/>

    </session-factory>

</hibernate-configuration>

4. User.hbm.xml

    <class name="com.xy.User" table="USER">

        <id name="id" type="string" unsaved-value="null">
            <column name="user_id" sql-type="char(32)" />
            <generator class="uuid.hex"/>
        </id>

        <property name="name" type="string" not-null="true">
            <column name="name" length="16" not-null="true"/>
        </property>

        <property name="sex" type="char"/>

        <property name="age" type="int"/>

    </class>

</hibernate-mapping>

5. 測試文件

package com.xy;

import java.util.List;
import java.util.ListIterator;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import net.sf.hibernate.*;
import net.sf.hibernate.cfg.*;

public class HibernateTest {
 private static Log log = LogFactory.getLog(HibernateTest.class);
 public void find() {
  SessionFactory sessionFactory;
  try {
   sessionFactory = new Configuration().configure()
     .buildSessionFactory();

   Session session = sessionFactory.openSession();

   List users = session.find("from User");

   session.close();
   sessionFactory.close();

   for (ListIterator iterator = users.listIterator(); iterator
     .hasNext();) {
    User user = (User) iterator.next();
    System.out.println(user.getName() + "\n\tAge: " + user.getAge()
      + "\n\tSex: " + user.getSex());
   }
  } catch (HibernateException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }

 }

 public void insert() {

  SessionFactory sessionFactory;
  try {
   sessionFactory = new Configuration().configure()
     .buildSessionFactory();

   User user = new User();
   user.setName("caterpillar");
   user.setSex('M');
   user.setAge(23);

   Session session = sessionFactory.openSession();
   Transaction tx = session.beginTransaction();
   session.save(user);
   tx.commit();
   session.close();
   sessionFactory.close();

   System.out.println("插入數據OK!請在MySQL查看結果！");
  } catch (HibernateException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
 }

 public static void main(String[] args) throws HibernateException {

  new HibernateTest().find();
  new HibernateTest().insert();

 }
}

6. 文件結構和所用到的jar包


 
7. 操作結果

log4j:WARN No appenders could be found for logger (net.sf.hibernate.cfg.Environment).
log4j:WARN Please initialize the log4j system properly.
Hibernate: select user0_.user_id as user_id, user0_.name as name, user0_.sex as sex, user0_.age as age from USER user0_
caterpillar
 Age: 28
 Sex: M
caterpillar
 Age: 28
 Sex: M
caterpillar
 Age: 28
 Sex: M
caterpillar
 Age: 23
 Sex: M
qqqqq
 Age: 20
 Sex: M
www
 Age: 21
 Sex: M
yyy
 Age: 20
 Sex: M
yyy
 Age: 20
 Sex: M
yyy
 Age: 20
 Sex: M
yyy
 Age: 20
 Sex: M
Hibernate: insert into USER (name, sex, age, user_id) values (?, ?, ?, ?)
插入數據OK!請在MySQL查看結果！