myeclipse创建hibernate工程

1.创建数据库：

from blog http://www.cnblogs.com/zhaocundang/p/9061959.html

使用navicat mysql IDE：

创建数据库 bookshop

创建表

CREATE TABLE books(id INT PRIMARY KEY auto_increment,Bookname VARCHAR(50),Bookprice VARCHAR(40));

ok 数据库部分整完。

打开myeclipse创建web工程：

finish

创建数据库连接db browser

如果没有的话，在other查找db browser

右键new

填信息

测试连接



finish

展开数据库，右键数据库表book,反向工程

finish

右键工程导入hibernate库

取消勾

整个工程：

创建个测试类：

插入数据

package test;

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

import pojo.Book;

public class mytest {

	 static Configuration cfg = null;
	 static SessionFactory sessionFactory = null;

	public static void insert(){

		cfg = new Configuration();
		cfg.configure();
		sessionFactory = cfg.buildSessionFactory();

		Configuration cfg = new Configuration();
		cfg.configure();

		SessionFactory sessionFactory = cfg.buildSessionFactory();

		Session session = sessionFactory.openSession();

		Transaction tx = session.beginTransaction();

		 Book book = new Book();

		 book.setBookname("语文");
		 book.setBookprice("18元");

		//调用session的方法实现添加
		session.save(book);

//		第六步 提交事务
		tx.commit();

//		第七步 关闭资源
		session.close();
		sessionFactory.close();

	}

	public static void main(String[] args){

		insert();

	}

}

更新数据

package test;

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

import pojo.Book;

public class update {

	 static Configuration cfg = null;
	 static SessionFactory sessionFactory = null;

	public static void update(){

		cfg = new Configuration();
		cfg.configure();
		sessionFactory = cfg.buildSessionFactory();

		Configuration cfg = new Configuration();
		cfg.configure();

		SessionFactory sessionFactory = cfg.buildSessionFactory();

		Session session = sessionFactory.openSession();
		Transaction tx= session.beginTransaction();

		//修改第一条数据
		 Book book =(Book)session.get(Book.class, new Integer(1));

		 book.setBookname("语文");
		 book.setBookprice("20元");

		//保存一下
		session.save(book);

//		第六步 提交事务
		tx.commit();

//		第七步 关闭资源
		session.close();
		sessionFactory.close();

	}

	public static void main(String[] args){

		update();

	}

}

删除数据

package test;

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

import pojo.Book;

public class delete {

	 static Configuration cfg = null;
	 static SessionFactory sessionFactory = null;

	public static void delete(){

		cfg = new Configuration();
		cfg.configure();
		sessionFactory = cfg.buildSessionFactory();

		Configuration cfg = new Configuration();
		cfg.configure();

		SessionFactory sessionFactory = cfg.buildSessionFactory();

		Session session = sessionFactory.openSession();

		Transaction tx = session.beginTransaction();

		//删除第三条数据
		 Book book =(Book)session.get(Book.class, new Integer(3));

		 session.delete(book);

//		第六步 提交事务
		tx.commit();

//		第七步 关闭资源
		session.close();
		sessionFactory.close();

	}

	public static void main(String[] args){

		delete();

	}

}

查询数据

package test;

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

import pojo.Book;

public class select {

	 static Configuration cfg = null;
	 static SessionFactory sessionFactory = null;

	public static void select(){

		cfg = new Configuration();
		cfg.configure();
		sessionFactory = cfg.buildSessionFactory();

		Configuration cfg = new Configuration();
		cfg.configure();

		SessionFactory sessionFactory = cfg.buildSessionFactory();

		Session session = sessionFactory.openSession();

		Transaction tx = session.beginTransaction();

		 Book book =(Book)session.get(Book.class, new Integer(1));
		System.out.println("书的ID是:"+book.getId()+"\n"+"书名是:"+book.getBookname()+"\n"+"价格是:"+book.getBookprice());

//		第六步 提交事务
		tx.commit();

//		第七步 关闭资源
		session.close();
		sessionFactory.close();

	}

	public static void main(String[] args){

		select();

	}

}