hibernate

<?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>
        <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="connection.url">jdbc:mysql://localhost:3306/test</property>
        <property name="connection.username">root</property>
        <property name="connection.password">root</property>
        <property name="dialect">org.hibernate.dialect.MySQLDialect</property>
        <property name="show_sql">true</property>
        <mapping resource="com/finn/pojo/User.hbm.xml"/>
    </session-factory>
</hibernate-configuration>

<?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">
    
<hibernate-mapping package="com.finn.pojo">
    <class name="User" table="user">
        <id name="id" column="id" type="int">
            <generator class="native"></generator>
        </id>
        
        <property name="uname" type="string" not-null="true">
            <column name="uname"/>
        </property>
        
        <property name="upwd" type="string" not-null="true">
            <column name="upwd" />
        </property>
    </class>
</hibernate-mapping>

　　　　//1.创建Configuration,该对象用于读取hibernate.cfg.xml文件并初始化
        Configuration cfg = new Configuration().configure();
        //2.创建SessionFactory,只有一个
        SessionFactory sf = cfg.buildSessionFactory();
        //3.创建Session
        Session session = sf.openSession();
        //4.增加、删除、修改  强制要求用事务提交
        Transaction ts = session.beginTransaction(); //开启事务
        User user = new User();
        
        user.setUname("zhangxueyou");
        user.setUpwd("zxyhi");
        
        session.save(user);
        
        ts.commit();
        session.close();