Hibernate 自动创建数据库 [英] Hibernate auto create database

问题描述

我有一个 Java EE Hibernate 项目，我使用 MySQL 作为数据库.

I have a Java EE Hibernate project, and I'm using MySQL as a database.

我希望当我第一次运行项目时，它会自动创建数据库.

I want that when I first time run the project, it will create the database automatically.

这是我的hibernate.cnf.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="connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="connection.url">jdbc:mysql://localhost/InternetProject</property>
        <property name="connection.username">root</property>
        <property name="connection.password"></property>
        <property name="connection.pool_size">10</property>
        <property name="dialect">org.hibernate.dialect.MySQLDialect</property>
        <property name="hibernate.hbm2ddl.auto">update</property>
        <property name="show_sql">true</property>
        <mapping class="entities.Business" />
        <mapping class="entities.Coupon" />
        <mapping class="entities.User" />
        <mapping class="entities.LastLogin" />
    </session-factory>  
</hibernate-configuration>

当我第一次在另一台电脑上运行这个项目时，如何创建数据库InternetProject?

When I first time run this project on another computer, how can I make the database InternetProject to be created?

根据配置文件，它可能已经这样做了，我不知道.

According to the config file, it might already do it and I'm not aware to it.

提前致谢.

推荐答案

create将创建表.但它不会创建数据库.更改连接 url 以生成数据库.

<property name="hibernate.hbm2ddl.auto">create</property> will create tables. But it will not create database. Change the connection url to generate the database.

<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost/InternetProject?createDatabaseIfNotExist=true</property>
<property name="connection.username">root</property>
<property name="connection.password"></property>
<property name="connection.pool_size">10</property>

更新:创建数据库时的字符编码

Update : character encoding when creating database

<property name="connection.url">
    jdbc:mysql://localhost/InternetProject?createDatabaseIfNotExist=true&useUnicode=yes&characterEncoding=UTF-8
</property>

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