hibernate使用类直接建表的固定代码（以及封装的方法和xml的配置）

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2016-04-27

1.封装的方法：

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import org.hibernate.service.ServiceRegistry;
import org.hibernate.service.ServiceRegistryBuilder;
public class MySession {
    private MySession() {
    }
    private static Configuration cfg = null;
    private static SessionFactory sf = null;
    static {
        cfg = new Configuration().configure("/com/gao/cc/util/hibernate.cfg.xml");
        ServiceRegistry registry = new ServiceRegistryBuilder().applySettings(
                cfg.getProperties()).buildServiceRegistry();
        sf = cfg.buildSessionFactory(registry);
    }
    public static Configuration getConfiguration() {
        return cfg;
    }
    public static Session getSession() {
        return sf.openSession();
    }
    public static void close(Session session) {
        if (session != null) {
            session.close();
        }
        if (sf != null) {
            sf.close();
        }
    }
}

2：相关xml的配置：

<?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">
<hibernate-configuration>
   <session-factory>
      <property name="hibernate.connection.driver_class">com.microsoft.sqlserver.jdbc.SQLServerDriver</property>
      <property name="hibernate.connection.url">jdbc:sqlserver://localhost:1433;databasename=mydb</property>
      <property name="hibernate.connection.username">sa</property>
      <property name="hibernate.connection.password">1234</property>
      <property name="hibernate.dialect">org.hibernate.dialect.SQLServerDialect</property>
      <property name="hibernate.show_sql">true</property>
      <property name="hibernate.format_sql">true</property>
      <property name="hibernate.hbm2ddl.auto">update</property>
      <!-- <mapping class="com.sunzone.model.EntityVo" /> <mapping class="com.sunzone.model.Husband"  //双引号添加类路径
         /> <mapping class="com.sunzone.model.Wife" /> -->
   </session-factory>
</hibernate-configuration>

　　3：生成代码的固定方法代码

public class Gao05 {
	public static void main(String[] args) {
		Configuration cfg = MySession.getConfiguration();
		SchemaExport export = new SchemaExport(cfg);
		export.create(true, true);
	}
}

　　

 4：测试方法（略有固定，可参考）

public class Gao06 {
	public static void main(String[] args) {
		Configuration cfg = MySession.getConfiguration();
		// 1、加注解类Class
		cfg.addAnnotatedClass(Person.class);
		// .....
		Session session = MySession.getSession();
		// 2、创建类实例；
		Person p1 = new Person("001", "张老三", 53);
		Person p2 = new Person();
		p2.setId("011");
		p2.setName("jack");
		p2.setAge(32);
		// 3、生成一个事务
		Transaction tx = session.beginTransaction();
		session.save(p1);
		session.save(p2);
		tx.commit();
		// .........
		MySession.close(session);
	}
}

　　

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