1 <?xml version="1.0" encoding="UTF-8"?>
 2 <!DOCTYPE hibernate-configuration PUBLIC
 3         "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
 4         "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
 5
 6 <hibernate-configuration>
 7     <session-factory>
 8         <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
 9         <property name="connection.url">jdbc:mysql://localhost:3306/hibernate_first?useUnicode=true&amp;characterEncoding=UTF8</property>
10         <property name="connection.username">root</property>
11         <property name="connection.password"></property>
12         <!-- 每次从数据库中取出并放到JDBC的Statement中的记录条数。Fetch Size设的越大，读数据库的次数越少，速度越快，Fetch
13             Size越小，读数据库的次数越多，速度越慢 -->
14         <property name="jdbc.fetch_size">50 </property>
15         <!--批量插入,删除和更新时每次操作的记录数。Batch Size越大，批量操作的向数据库发送Sql的次数越少，速度就越快，同样耗用内存就越大 -->
16         <property name="jdbc.batch_size">23 </property>
17         <!-- SQL 方言-->
18         <property name="dialect">org.hibernate.dialect.MySQL5Dialect</property>
19         <!-- Enable Hibernate's automatic session context management -->
20         <property name="current_session_context_class">thread</property>
21         <!-- 在控制台输出sql语句 -->
22         <property name="show_sql">true</property>
23         <!-- 在启动时根据配置更新数据库 -->
24         <property name="hbm2ddl.auto">update</property>
25         <mapping resource="com/cnblogs/hibernate_first/User.hbm.xml" /><!-- 注册我们的实体映射类 -->
26     </session-factory>
27 </hibernate-configuration>

package com.cnblogs.hibernate_first;import java.util.Date;public class User {private String id;private String name;private String password;private Date createDate;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 String getPassword() {return password;}public void setPassword(String password) {this.password = password;}public Date getCreateDate() {return createDate;}public void setCreateDate(Date createDate) {this.createDate = createDate;}}

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC"-//Hibernate/Hibernate Mapping DTD 3.0//EN""http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd" ><hibernate-mapping package="com.cnblogs.hibernate_first"><class name="User" table="user"><id name="id" column="id"><generator class="uuid"></generator></id><property name="name" column="name" /><property name="password" column="password" /><property name="createDate" column="createDate" /></class>
</hibernate-mapping>

 1 public class Test1 {
 2     public static void main(String[] args) {
 3         //读取配置文件
 4         Configuration cfg = new Configuration().configure();
 5         //建立SessionFactory
 6         SessionFactory factory = cfg.buildSessionFactory();
 7         Session session = null;
 8         Transaction transation = null;
 9         try {
10         //打开Session
11         session = factory.openSession();
12         //开启事务
13         transation = session.beginTransaction();
14         User user = new User();
15         user.setName("王五");
16         user.setPassword("123");
17         user.setCreateDate(new Date());
18         session.save(user);
19         //提交事务
20         transation.commit();
21         } catch (Exception e) {
22             e.printStackTrace();
23             //回滚
24             transation.rollback();
25         }finally{
26             //关闭Session
27             if(session != null){
28                 if(session.isOpen()){
29                     session.close();
30                 }
31             }
32         }
33     }
34 }