建立專案（java  project / dynamic web project） 

新增需要的jar包

一、在專案上單擊右鍵，選擇New  ——》other   

二、點選下面的Hibernation 建立hibernate.cfg.xml檔案

三、資料庫載入的資料，在Session factory name  處可以為空，不必建立名稱

 資料庫URL後面必須填寫資料庫專案名稱

四、在eclipse頁面上面顯示hibernate視窗

四、在eclipse頁面上面顯示hibernate視窗 

五、在專案上右鍵，建立reveng.xml檔案  直接點選next 

六、不用點選，直接用預設的方式，點選next 

七、建立對映類對應的hbm.xml檔案 

八、反向生成對應的類 

下圖完成之後點選apply，然後選擇上面的Exporters

選擇下圖的Domain code  和   Hibemate XML Mappings 

配置檔案

<?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 name="sessionFactory">
    <property name="hibernate.show_sql">true</property>
        <property name="hibernate.connection.driver_class">oracle.jdbc.driver.OracleDriver</property>
        <property name="hibernate.connection.password">tiger</property>
        <property name="hibernate.connection.url">jdbc:oracle:thin:@localhost:1521:orcl</property>
        <property name="hibernate.connection.username">scott</property>
        <property name="hibernate.default_schema">scott</property>
        <property name="hibernate.dialect">org.hibernate.dialect.Oracle10gDialect</property>
        <mapping resource="com/db/entity/User.hbm.xml"/> 
    </session-factory>
</hibernate-configuration>
 

 user 類

package com.db.entity;
public class User {
	private Long id;
	private String name;
	private String password;
	
	public Long getId() {
		return id;
	}
	public void setId(Long id) {
		this.id = id;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getPassword() {
		return password;
	}
	public void setPassword(String password) {
		this.password = password;
	}
	public User(Long id, String name, String password) {
		super();
		this.id = id;
		this.name = name;
		this.password = password;
	}
	public User() {
		super();
	}
	
}
 

user的對映檔案

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- Generated 2018-11-1 17:27:33 by Hibernate Tools 3.5.0.Final -->
<hibernate-mapping>
    <class name="com.db.entity.User" table="USERS">
        <id name="id" type="java.lang.Long">
            <column name="ID" />
            <generator class="assigned" />
        </id>
        <property name="name" type="java.lang.String">
            <column name="NAME" />
        </property>
        <property name="password" type="java.lang.String">
            <column name="PASSWORD" />
        </property>
    </class>
</hibernate-mapping>

 對資料庫對應資料表進行增刪改操作：

package com.db.test;

import java.util.List;

import javax.jws.soap.SOAPBinding.Use;

import org.hibernate.Query;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
import org.hibernate.classic.Session;

import com.db.entity.User;

public class HibernateTest1 {
public static void main(String[] args) {
	//add();
	//delete();
	//update();
	//doQueryAll();
	doQuery();
	
}
//增加
public static  void  add(){
	Configuration con=new Configuration().configure();
	//建立SessionFactory
	SessionFactory sessionFactory=con.buildSessionFactory();
	//開啟一個會話  與資料庫
	Session session=sessionFactory.openSession();
	User user=new User(98L,"gg","123456");
	Transaction ts=session.beginTransaction();
	session.save(user);
	ts.commit();
	session.close();
	sessionFactory.close();
}
//刪除
public static void delete(){
	Configuration con=new Configuration().configure();
	//建立SessionFactory
	SessionFactory sessionFactory=con.buildSessionFactory();
	//開啟一個會話  與資料庫
	Session session=sessionFactory.openSession();
	User user=(User) session.get(User.class, 98L);
	//事務開始
	Transaction tx=session.beginTransaction();
	session.delete(user);
	//提交
	tx.commit();
	session.close();
	sessionFactory.close();
}
//修改
public static void update(){
	Configuration conn=new Configuration().configure();
	//單例模式   建立SessionFactory
	Session session=conn.buildSessionFactory().openSession();
	//事務開始
	User user=(User) session.get(User.class, 14L);
	//修改什麼就重新設定屬性值
	user.setName("xiaoming");
	Transaction tx=session.beginTransaction();
	//提交
	session.update(user);
	tx.commit();
	session.close();
}
//查詢所有資料
   public static void doQueryAll(){
	   Configuration conn=new Configuration().configure();
	   //開啟session連線
	   Session session=conn.buildSessionFactory().openSession();
	 //事務開始
	   Transaction tx=session.beginTransaction();
	   //建立查詢
	   Query query= session.createQuery("from User");  //from 後面跟對映的類名
	   List<User> list=query.list(); 
	   //提交
	   tx.commit();
	   //關閉session
	   session.close();
		for (int i = 0; i < list.size(); i++) {
			System.out.println(list.get(i).getName()+" "+list.get(i).getPassword());	
		}
   }
   public static void doQuery(){
	   Configuration conn=new Configuration().configure();
	   //開啟session連線
	   Session session=conn.buildSessionFactory().openSession();
	 //事務開始
	   Transaction tx=session.beginTransaction();
	   //建立查詢
	   User user= (User) session.get(User.class,14L );
	   //提交
	   tx.commit();
	   //關閉session
	   session.close();
	   System.out.println(user.getName()+" "+user.getPassword());
   }

}