hibernate 初步

pom节点：

<dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-core</artifactId>
    <version>5.2.10.Final</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.transaction/jta -->
<dependency>
    <groupId>javax.transaction</groupId>
    <artifactId>jta</artifactId>
    <version>1.1</version>
</dependency>
<dependency>
    <groupId>junit</groupId>
    <artifactId>junit</artifactId>
    <version>RELEASE</version>
</dependency>

大配置：

<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
        "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
        "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<!--根节点-->
<hibernate-configuration>
    <session-factory>
    <property name="connection.driver_class">oracle.jdbc.driver.OracleDriver</property>
    <property name="connection.url">jdbc:oracle:thin:@localhost:1521:orcl</property>
    <property name="connection.username">T16</property>
    <property name="connection.password">t16</property>
    <!-- SQL dialect SQL方言-->  
    <property name="dialect">org.hibernate.dialect.Oracle10gDialect</property>
    <!-- 打印sql控制台-->
    <property name="show_sql">true</property>
    <!-- 自动构建表结构 create 先delete表结构 再创建，update直接更新表结构 -->
    <property name="hbm2ddl.auto">update</property>
        <mapping resource="bdqn/entity/Cat.xml"/>
    </session-factory>
</hibernate-configuration>
映射文件：
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
        "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
        "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"
     >

<hibernate-mapping package="bdqn.entity">
    <class name="Cat" table="Cat">
        <id name="id" column="id">
            <generator class="native"/>
        </id>
        <property name="name" column="name"></property>
        <property name="age" column="age"></property>
    </class>

</hibernate-mapping>
添加单测：
public class test {
    @Test
    public void test01(){
        Configuration cfg=new Configuration().configure();
        SessionFactory factory=cfg.buildSessionFactory();
        Session session=factory.openSession();
        Transaction tx=session.beginTransaction();
        Cat dog=new Cat();
        dog.setName("");
        dog.setAge(20);
        session.save(dog);
        tx.commit();
        System.out.println("add ok");
        session.close();
    }