Hibernate 容器 为什么我的插不进数据库东西

 我用的是win7 + myEclipse7.0
代码是
 public class Test {
             public static void main(String args[]){
//              Query query = HibernateSessionFactory.getSession().createQuery("from Users");
//              List  list = query.list();
//              Iterator it = list.iterator();
//              while(it.hasNext()){
//              System.out.print("aaaa");
//              }
              
              
              Session session = HibernateSessionFactory.getSession();
              Transaction tx = session.beginTransaction();
              Users user1 = new Users();
              user1.setEmail(new HashSet());
              user1.setName("cht");
              user1.addAddress("dddddd@ddd");
              user1.addAddress("111111111@ddd");
                
              Users user2 = new Users();
              user2.setEmail(new HashSet());
              user2.setName("zls");
              user2.addAddress("aaaaaa@ddd");
              user2.addAddress("2222222@ddd");
              System.out.print("aaaa");
              tx.commit();
              
             }
             
}
控制台能输出aa   数据库中没东西 
users.hbm.xml 
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- 
    Mapping file autogenerated by MyEclipse Persistence Tools
-->
<hibernate-mapping>
    <class name="com.cstp.pojo.Users" table="USERS" schema="SCOTT">
        <id name="id" type="java.lang.Long">
            <column name="ID" precision="10" scale="0" />
            <generator class="sequence" />
        </id>
        <property name="name" type="java.lang.String">
            <column name="NAME" length="20" />
        </property>
        <set name="email" table="email">     
              <key column="id"/>       
                    <element type="java.lang.String"   column="address"/> 
          </set> 
    </class>
</hibernate-mapping>其他东西是自动生成的  小弟是才学  很多都不懂 各位给指点下