java hibernate tomcat配置-会话将不会打开
我正在尝试配置hibernate和tomcat,以便tomcat管理数据库连接,但我遇到了一些错误。 你能帮忙吗?这是我的密码: 这是冬眠球java hibernate tomcat配置-会话将不会打开,java,hibernate,jakarta-ee,tomcat,servlets,Java,Hibernate,Jakarta Ee,Tomcat,Servlets,我正在尝试配置hibernate和tomcat,以便tomcat管理数据库连接,但我遇到了一些错误。 你能帮忙吗?这是我的密码: 这是冬眠球 public class HibernateUtil { private static final SessionFactory sessionFactory = buildSessionFactory(); private static SessionFactory buildSessionFactory() { try {
public class HibernateUtil {
private static final SessionFactory sessionFactory = buildSessionFactory();
private static SessionFactory buildSessionFactory() {
try {
// Create the SessionFactory from hibernate.cfg.xml
return new AnnotationConfiguration().configure().buildSessionFactory();
} catch (Throwable ex) {
// Make sure you log the exception, as it might be swallowed
System.err.println("Initial SessionFactory creation failed." + ex);
throw new ExceptionInInitializerError(ex);
}
}
public static SessionFactory getSessionFactory() {
return sessionFactory;
}
public static void shutdown() {
// Close caches and connection pools
getSessionFactory().close();
}
}
HibernateListener:
我还在web.xml中做了一个条目
<listener>
<listener-class>hibernate.HibernateListener</listener-class>
</listener>
我得到的错误是:
org.apache.jasper.JasperException: org.hibernate.HibernateException: createQuery is not valid without active transaction
我试着用类似于中描述的方法来做,但没有成功。。。。
再一次。请提供帮助。开始处理会话。该睡觉了。。。很容易。谢谢:
public Employee getEmployeeByLogin(String login){
Employee p= null;
Session session = HibernateUtil.getSessionFactory().getCurrentSession();
Query query = session.createQuery("from employee p where p.login = '" + login +"'");
p = (Employee) query.uniqueResult();
return p;
}
org.apache.jasper.JasperException: org.hibernate.HibernateException: createQuery is not valid without active transaction