hibernate获取SessionFactory失败 咋办?
如题 代码:
Java code
package com.test.tree.client;
import org.hibernate.cfg.Configuration;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import com.test.pojo.Book;
public class HibernateTest
{
public static void main(String[] args)
{
Configuration cfg = new Configuration().configure();
SessionFactory factory = cfg.buildSessionFactory();
Session session = factory.openSession();;
session.beginTransaction();
Book book = new Book();
book.setBook_name("轻量级JavaEE企业应用实战");
book.setBook_editor("李刚");
book.setBook_pub("电子工业出版社");
book.setBook_price((float) 99.00);
session.save(book);
session.getTransaction().commit();
}
}
错误代码:
Exception in thread "main"
java.lang.NullPointerException at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:169)
at org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2833)
at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2829)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1840)
at com.test.tree.client.HibernateTest.main(HibernateTest.java:15)
为啥获取不到sessionfactory呢?
------解决方案--------------------
很有可能跟你的JAR包有关,看一下
------解决方案--------------------很有可能是你的hibernate配置文件里面有错误
------解决方案--------------------Configuration cfg = new Configuration();
SessionFactory sf =cfg.configure().buildSessionFactory();
这样试试看