单纯Hibernate环境的搭建
单纯Hibernate环境的搭建
?
所谓单纯Hibernate环境,是指不与Spring集成而单独使用Hibernate在完成持久层工作的环境的搭建
?
习惯了SSH集成的小盆友可能不太记得如何单独使用Hibernate了
?
搭建步骤:
1.引入JDBC驱动jar包和Hibernate的Jar包
2.在src中创建Hibernate的配置文件(使用MyEclipse的XML创建向导即可)
以下是一个典型的配置文件示例:
<?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="myeclipse.connection.profile">mysql</property><property name="connection.url">jdbc:mysql://localhost:3306/edu</property><property name="connection.username">root</property><property name="connection.password"></property><property name="connection.driver_class">com.mysql.jdbc.Driver</property><property name="dialect">org.hibernate.dialect.MySQLDialect</property><property name="format_sql">true</property><property name="show_sql">true</property><property name="hbm2ddl.auto">create</property><mapping resource="com/edu/conf/hibernate/hbm/user.hbm.xml" /></session-factory></hibernate-configuration>
?
3.创建映射文件,并添加到配置文件
4.实现Dao,典型的Hibernate的初始化代码
public class BaseDao {private static SessionFactory sf = null;//加载SessionFactorystatic {sf = new Configuration().configure("com/edu/conf/hibernate/hiernate.xml").buildSessionFactory();}public Session getSession(){return sf.openSession();}}public class UserDao extends BaseDao{public boolean addUser(User user){Session session = this.getSession();Transaction trans = session.beginTransaction();session.save(user);trans.commit();return true;}}
?