Hibernate annotations

 
<!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>  
  
        <!-- Database connection settings -->  
        <property name="connection.driver_class">com.mysql.jdbc.Driver</property>  
        <property name="connection.url">jdbc:mysql://localhost:3306/bookshop</property>  
        <property name="connection.username">root</property>  
        <property name="connection.password">123456</property>  
  
        <!-- JDBC connection pool (use the built-in) -->  
        <property name="connection.pool_size">1</property>  
  
        <!-- SQL dialect -->  
        <property name="dialect">org.hibernate.dialect.HSQLDialect</property>  
  
        <!-- Enable Hibernate's automatic session context management -->  
        <property name="current_session_context_class">thread</property>  
  
        <!-- Disable the second-level cache -->  
        <property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>  
  
        <!-- Echo all executed SQL to stdout -->  
        <property name="show_sql">true</property>  
  
        <!-- Drop and re-create the database schema on startup -->  
        <property name="hbm2ddl.auto">update</property>  
  
        <mapping class="com.demo.hibernate.model.T_Book" />  
  
    </session-factory>  
  
</hibernate-configuration>  


Java代碼  收藏代碼
package com.demo.hibernate.model;  
  
import javax.persistence.Entity;  
import javax.persistence.Id;  
  
@Entity  
public class T_Book {  
  
    private int id;  
    private String name;  
    private String author;  
    private String press;  
    private double price;  
      
    @Id  
    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 String getAuthor() {  
        return author;  
    }  
    public void setAuthor(String author) {  
        this.author = author;  
    }  
    public String getPress() {  
        return press;  
    }  
    public void setPress(String press) {  
        this.press = press;  
    }  
    public double getPrice() {  
        return price;  
    }  
    public void setPrice(float price) {  
        this.price = price;  
    }  
}  


Java代碼  收藏代碼
import org.hibernate.Session;  
import org.hibernate.SessionFactory;  
import org.hibernate.cfg.Configuration;  
  
import com.demo.hibernate.model.T_Book;  
  
  
  
public class Application {  
  
    public static void main(String[] args) {  
          
        T_Book b=new T_Book();  
        b.setId(100002);  
        b.setName("book1");  
        b.setAuthor("author1");  
        b.setPress("press1");  
        b.setPrice(23);  
          
        Configuration cfg=new Configuration();  
        SessionFactory factory=cfg.configure().buildSessionFactory();  
        Session session=factory.openSession();  
          
        session.beginTransaction();  
        session.save(b);  
        session.getTransaction().commit();  
          
        session.close();  
        factory.close();  
    }  
}