Hibernate 框架的配置之一

1. 下载hibernate distribution 3.6.* final包

2. 解压zip包

3. 将lib目录下jpa和required目录下的jar包都拷贝到自己工程的WEB-INF目录下lib目录下

4. 测试hibernate

/**
 *
 */
package com.test;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;

/**
 * @author Administrator
 *
 */
public class TestMain {
    public static void main(String[] args) {

        Configuration configuration = new Configuration();

        SessionFactory sessionFactory = configuration.configure().buildSessionFactory();

        Session  session =  sessionFactory.openSession();

        Transaction transaction = session.beginTransaction();

        News news= new News();

        news.setContent("test content");
        news.setTitle("test title");

        session.save(news);
        session.close();
        sessionFactory.close();

    }
}

发现错误，org.hibernate.HibernateException: JDBC Driver class not found: com.mysql.jdbc.Driver

导入mysql-connector-java-5.1.25-bin.jar包到lib目录下

继续测试，发现错误

JDWP Unable to get JNI 1.2 environment, jvm->GetEnv() return code = -2

google，发现这个错误是debug 延时

直接运行发现，数据库表中并没有多一条数据，发现没有commit

/**
 *
 */
package com.test;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;

/**
 * @author Administrator
 *
 */
public class TestMain {
    public static void main(String[] args) {

        Configuration configuration = new Configuration();

        SessionFactory sessionFactory = configuration.configure().buildSessionFactory();

        Session  session =  sessionFactory.openSession();

        Transaction transaction = session.beginTransaction();

        News news= new News();

        news.setContent("test content");
        news.setTitle("test title");

        session.save(news);
        transaction.commit();
        session.close();
        sessionFactory.close();

    }
}