第一个Hibernate程序源代码

hibernater 我的理解就是方便程序员用java来操纵数据库

代码作用:根据person类在数据库中创建相应的表

1.目录结构

2.源代码

   2.1Person.java

package s1;

public class Person {
    private String id;
	private String age;
	private String name;

	public Person() {
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}

	public String getId() {
		return id;
	}
	public void setId(String id) {
		this.id = id;
	}
	public String getAge() {
		return age;
	}
	public void setAge(String age) {
		this.age = age;
	}
	
}

 
 2.2 Person.hbm.xml

   

<?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>
    <class name="s1.Person" table="person" >
      <id name="id" type="java.lang.String" length="20"></id>
      <property name="age" type="java.lang.String" length="20"></property>
      <property name="name" type="java.lang.String" length="20"></property>

    </class>
</hibernate-mapping>

2.3 Hibernate.hbm.xml

<?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="dialect">org.hibernate.dialect.MySQLDialect</property>
	<property name="connection.url">jdbc:mysql://localhost:3306/first</property>
	<property name="connection.username">root</property>
	<property name="connection.password">admin</property>
	<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
	<property name="hbm2ddl.auto">update</property>
	<mapping resource="s1/Person.hbm.xml" />
</session-factory>

</hibernate-configuration>

2.4Main.java

  

package s2;

import org.hibernate.Session;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
import s1.Person;

public class Main {
	
	public static void  main(String [] args){
     new Main().test();
	}

	 public void test()
	 {
		 Configuration configuration =new Configuration();
		 configuration.configure(); 
		 Session session=configuration.buildSessionFactory().openSession();//创建session
		 Transaction transaction = session.beginTransaction();
		 Person person=new Person();
		 person.setId("1");
		 person.setAge("19");
		 person.setName("zhangsan");
		 session.save(person);
		 transaction.commit();
		 session.close();
	 }
}