hibernate.cfg.xml

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hibernate.cfg.xml

<?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="connection.username">root</property>        <property name="connection.password">xxx</property>        <property name="connection.driver_class">com.mysql.jdbc.Driver</property>        <property name="connection.url">jdbc:mysql://localhost:3306/hibernate_demo</property><!--選擇資料庫方言-->        <property name="dialect">org.hibernate.dialect.MySQLDialect</property><!--是否在console輸出sql語句-->        <property name="show_sql">true</property>        <property name="format_sql">true</property><!--update用於更新資料庫表，常見create：如果資料庫存在該表先刪除再重建-->        <property name="hbm2ddl.auto">update</property>        <mapping resource="Students.hbm.xml" />    </session-factory></hibernate-configuration>

Students.hbm.xml

<?xml version="1.0"?><!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN""http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"><!-- Generated 2017-7-10 22:35:01 by Hibernate Tools 3.5.0.Final --><hibernate-mapping><!-- class name是package.classname -->    <class name="xml_onetomany.Students" table="STUDENTS">        <id name="sid" type="int">            <column name="SID" /><!--assigned:初始化對象的時候SID要手動賦值，否則int預設為0,其他類型報錯；native：自動成長，針對不同資料庫意義不同-->            <generator class="assigned" />        </id>        <property name="name" type="java.lang.String">            <column name="NAME" />        </property>        <property name="gender" type="java.lang.String">            <column name="GENDER" />        </property>        <property name="address" type="java.lang.String">            <column name="ADDRESS" />        </property>    </class></hibernate-mapping>

 

hibernate.cfg.xml