public class StudentManagerAdd implements StudentManager {
public void addStudent(Student student) {
Session session=null;
try {
//通过工具类HibernateSessionFactory的方法getSessionFactory()获取Session
session=HibernateSessionFactory.getSessionFactory().getCurrentSession();
session.beginTransaction();
session.save(student);
Inform inform =new Inform();
inform.setType("新报名");
inform.setDetail("身体健康");
inform.setTime(new Date());
//把对象inform通过管理对象logManageraocung起来
InformManager logManager=new InformManagerAdd();
logManager.addInform(inform);
session.getTransaction().commit();
} catch (Exception e) {
System.out.println("添加失败");
e.printStackTrace();
session.getTransaction().rollback();
}
}
}
public class Client {
public static void main(String[] args) {
Student student=new Student();
student.setName("cjg");
StudentManager studentManager=new StudentManagerAdd();
studentManager.addStudent(student);
}
}
添加失败
org.hibernate.HibernateException: No CurrentSessionContext configured!
at org.hibernate.impl.SessionFactoryImpl.getCurrentSession(SessionFactoryImpl.java:620)
at Impl.StudentManagerAdd.addStudent(StudentManagerAdd.java:19)
at client.Client.main(Client.java:16)
Exception in thread "main" java.lang.NullPointerException
at Impl.StudentManagerAdd.addStudent(StudentManagerAdd.java:35)
at client.Client.main(Client.java:16)
<session-factory>
<property name="current_session_context_class">thread</property>
<property name="dialect">
org.hibernate.dialect.SybaseDialect
</property>
<property name="connection.url">
jdbc:jtds:sqlserver://localhost:1433;databaseName=jsdata
</property>
<property name="connection.username">sa</property>
<property name="connection.password">123</property>
<property name="connection.driver_class">
net.sourceforge.jtds.jdbc.Driver
</property>
<property name="myeclipse.connection.profile">jsdata</property>
<mapping resource="entity/Inform.xml" />
<mapping resource="entity/Student.xml" />
</session-factory>
解释：获得连接的方式如果是HibernateSessionFactory.getSessionFactory().getCurrentSession(); 的话，则要在hibernate中设置属性<property name="current_session_context_class">thread</property> 一定是thtead,如果是getSession()的话，则配置为<property name="current_session_context_class">jta</property>