從其官方文檔啓動Hibernate。我陷入了配置xml文件的最基本步驟。儘管我已經按照示例中所述完成了所有操作,但未能找到The mapping file
。休眠:映射未發現異常
這是例外:
Exception in thread "main" org.hibernate.MappingNotFoundException: resource: testing/ground/beans/User.hbm.xml not found
at org.hibernate.cfg.Configuration.addResource(Configuration.java:728)
at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:2115)
at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:2087)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:2067)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:2020)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1935)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1914)
at testing.ground.test.HibernateTest.main(HibernateTest.java:14)
與代碼的main():
package testing.ground.test;
import java.util.List;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
public class HibernateTest {
private SessionFactory sessionFactory;
public static void main(String[] args) {
HibernateTest ht = new HibernateTest();
ht.sessionFactory = new Configuration().configure().buildSessionFactory();
ht.getData();
}
public void getData(){
Session session = this.sessionFactory.getCurrentSession();
session.beginTransaction();
List list = session.createQuery("from users").list();
System.out.println(list);
session.getTransaction().commit();
session.close();
}
}
Hibernate的配置文件:
<?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>
<!-- Database connection settings -->
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost:3306/somedb?characterEncoding=UTF-8</property>
<property name="connection.username">username</property>
<property name="connection.password"/>
<!-- JDBC connection pool (use the built-in) -->
<property name="connection.pool_size">1</property>
<!-- SQL dialect -->
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
<!-- Echo all executed SQL to stdout -->
<property name="show_sql">true</property>
<mapping resource="testing/ground/beans/User.hbm.xml"/>
</session-factory>
</hibernate-configuration>
我試圖保持文件夾結構與Hiberante示例中的相同:
請指點。