Hibernate环境搭建第一个小程序

最新推荐文章于 2019-08-04 14:59:27 发布

原创最新推荐文章于 2019-08-04 14:59:27 发布 · 735 阅读

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#Hibernate环境搭建第一个小程序 #Hibernatenate环境搭建

本文介绍了Hibernate环境的搭建过程，包括所需Jar包的获取、User类及映射文件的定义、配置文件hibernate.cfg.xml的设置，并通过一个简单的测试案例展示了如何使用Hibernate保存User对象。

Hibernate环境搭建：需要jar包http://download.youkuaiyun.com/detail/itjavawfc/8169591

User.java

package cn.itcast.hibernate.domain;
import java.util.Date;
public class User {
	private int id;
	private String name;
	private Date birthday;
	
	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public Date getBirthday() {
		return birthday;
	}
	public void setBirthday(Date birthday) {
		this.birthday = birthday;
	}
}

User.hbm.xml

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
	"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
	"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">

<hibernate-mapping package="cn.itcast.hibernate.domain">

	<class name="User">
		<id name="id">
		<generator class="native"/>
		</id> 
    <property name="name"/>
    <property name="birthday"/>
    </class>
</hibernate-mapping>

hibernate.cfg.xml

<!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.mysql.jdbc.Driver</property>
    <property name="connection.url">jdbc:mysql:///test</property>
    <property name="connection.username">root</property>
    <property name="connection.password">123</property>
    <property name="hbm2ddl.auto">create</property>
    
    <property name="dialect">org.hibernate.dialect.MySQLDialect</property>
    <mapping resource="cn/itcast/hibernate/domain/User.hbm.xml"/>
    </session-factory>
</hibernate-configuration>

测试：

package cn.itcast.hibernate;
import java.util.Date;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import cn.itcast.hibernate.domain.User;
public class Base {
	public static void main(String[] args){
		Configuration  cfg=new Configuration();
		cfg.configure();
		SessionFactory sf=cfg.buildSessionFactory();
		Session s=sf.openSession();
		User  user=new User();
		user.setBirthday(new Date());
		user.setName("name");
		s.save(user);
		s.close();
		System.out.println("end");
	}

}

第一个小程序，意在环境搭建和简要了解。