Hibernate hbm2ddl

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<?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"><!-- Generated by MyEclipse Hibernate Tools.                   --><hibernate-configuration><session-factory><property name="myeclipse.connection.profile">mysql connection</property><property name="dialect">org.hibernate.dialect.MySQLDialect</property><property name="connection.password">hpn</property><property name="connection.username">hpn</property><property name="connection.url">jdbc:mysql://ip/mysql</property><property name="connection.driver_class">com.mysql.jdbc.Driver</property><property name="show_sql">true</property><property name="hbm2ddl.auto">update</property><mapping resource="com/ustc/hibernate/model/Person.hbm.xml" /></session-factory></hibernate-configuration>

<property name="hbm2ddl.auto">update</property> 用于自动更新表；

其他的属性还有 create（每次运行重新建表，之前的表删除） create-drop validate

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