Hibernate生成数据库表

首先创建实体类

import java.util.Date;

public class ProductionEntity {

    public Integer getId() {

        return id;

    }

    public void setId(Integer id) {

        this.id = id;

    }

    public String getOrigin() {

        return origin;

    }

    public void setOrigin(String origin) {

        this.origin = origin;

    }

    public Double getPrice() {

        return price;

    }

    public void setPrice(Double price) {

        this.price = price;

    }

    public Date getDate() {

        return date;

    }

    public void setDate(Date date) {

        this.date = date;

    }

    private Integer id;

    private String origin;

    private Double price;

    private Date date;

}

然后Eclipse中在实体类上右键New-Other-Hibernate-Hibernate XML Mapping file(hbm.xml)

点击Finish 即可生成ProductionEntity.hbm.xml

打开ProductionEntity.hbm.xml 可以修改里面的内容

有了hbm.xml文件之后需要将其添加到项目的hibernate.cfg.xml中去

<?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>

        <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>

        <property name="hibernate.connection.password">12345678</property>

        <property name="hibernate.connection.url">jdbc:mysql://localhost/test</property>

        <property name="hibernate.connection.username">root</property>

        <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>

        <property name="hibernate.show_sql">true</property>

        <property name="hibernate.hbm2ddl.auto">update</property>

        <property name="hibernate.current_session_context_class">thread</property>

        <mapping resource="com/Mageric/entity/ExchangeEntity.hbm.xml"/>

    </session-factory>

</hibernate-configuration>

有了实体类和对应的Hibernate配置文件后还需要一个ExportDB类 来生成数据库表

import org.hibernate.boot.MetadataSources;

import org.hibernate.boot.registry.StandardServiceRegistryBuilder;

import org.hibernate.boot.spi.MetadataImplementor;

import org.hibernate.service.ServiceRegistry;

import org.hibernate.tool.hbm2ddl.SchemaExport;

public class ExportDB {

    /**

     * @param args

     */

    public static void main(String[] args) {

        ServiceRegistry serviceRegistry = (ServiceRegistry) new StandardServiceRegistryBuilder().configure().build();

        MetadataImplementor metadataImplementor = (MetadataImplementor) new MetadataSources(serviceRegistry)

                .buildMetadata();

        SchemaExport export = new SchemaExport(serviceRegistry, metadataImplementor);

        export.create(true, true);

    }

}

Hibernate 5.X的代码跟之前的有些出入 旧的方法已经不再推荐使用了

有了上面两个类和配置文件之后就可以运行ExportDB.java 如无意外就会在数据库中生成对应的类了

生成之后的数据库表

Hibernate生成数据库表的相关教程结束。