我有一个使用Hibernate 4.0.1与derby数据库交互的项目。这很好。这是一个简单连接到数据库但不做任何事情的示例程序:
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
public class DbTestMain {
public static void main(String... args){
Configuration derbyConfiguration = new Configuration().configure("hibernate-derby.cfg.xml");
SessionFactory derbySF = derbyConfiguration.buildSessionFactory();
Session derbySession = derbySF.openSession();
derbySession.close();
}
}
这是相应的配置:
<?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.driver_class">org.apache.derby.jdbc.ClientDriver</property>
<property name="connection.url">jdbc:derby:TestDerbyDB;create=true</property>
<property name="connection.username"></property>
<property name="connection.password"></property>
<!-- SQL dialect -->
<property name="dialect">org.hibernate.dialect.DerbyDialect</property>
<!-- Disable the second-level cache -->
<property name="cache.provider_class">org.hibernate.cache.internal.NoCacheProvider</property>
<!-- Echo all executed SQL to stdout -->
<property name="show_sql">true</property>
<property name="hbm2ddl.auto">update</property>
</session-factory>
</hibernate-configuration>
这是我的课程路径:
工作正常。但是当我尝试更新到Hibernate 4.3.5时,我收到了这个错误:
Exception in thread "main" org.hibernate.HibernateException: Unable to make JDBC Connection [jdbc:derby:C:\Users\Kevin\Desktop\TestDerbyDB;create=true]
at org.hibernate.engine.jdbc.connections.internal.BasicConnectionCreator.createConnection(BasicConnectionCreator.java:77)
at org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl.configure(DriverManagerConnectionProviderImpl.java:106)
at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:111)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:234)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:206)
at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.buildJdbcConnectionAccess(JdbcServicesImpl.java:260)
at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:94)
at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:111)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:234)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:206)
at org.hibernate.cfg.Configuration.buildTypeRegistrations(Configuration.java:1885)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1843)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1928)
at DbTestMain.main(DbTestMain.java:9)
我唯一做的就是改变我的类路径以使用Hibernate 4.3.5:
(出于某种原因,Hibernate 4.0.1需要commons-collections,但Hibernate 4.3.5不需要。)
我没有改变任何其他内容,错误消息令人沮丧地含糊不清。有什么我做错了吗?我需要在代码中更新某些内容吗?
我的实际情况是我正在尝试从旧的(Hibernate 4.0.1)项目中提取代码并将其放入更新的(Hibernate 4.3.5)项目中。