会话会话= sessionFactory.openSession（）;是不是在休眠

Question

我正在尝试集成hibernate和struts2。没有错误。但是根本没有创建会话。以下是我的代码。 CustomerAction.java

    public String addCustomer(Customer customer) throws Exception{

        //get hibernate session from the servlet context
        SessionFactory sessionFactory =
             (SessionFactory) ServletActionContext.getServletContext()
                     .getAttribute(HibernateListener.KEY_NAME);
        System.out.println("session factory accessed");
        Session session = sessionFactory.openSession();
        System.out.println("session created");

        //save it


        session.beginTransaction();
        System.out.println("Transaction begin");
        session.save(customer);
        session.getTransaction().commit();
}

hibernate listener.Java

    public class HibernateListener implements ServletContextListener{

    private Configuration config;
    private SessionFactory factory;
    private String path = "/hibernate.cfg.xml";
    private static Class clazz = HibernateListener.class;

    public static final String KEY_NAME = clazz.getName();

    public void contextDestroyed(ServletContextEvent event) {
      //
    }

    public void contextInitialized(ServletContextEvent event) {

     try {
         SessionFactory sessionFactory =
                    new Configuration().configure("hibernate.cfg.xml").buildSessionFactory();
            System.out.println("session factory created");

            //save the Hibernate session factory into serlvet context
            event.getServletContext().setAttribute(KEY_NAME, factory);
      } catch (Exception e) {
             System.out.println(e.getMessage());
       }
    }
}

在struts.xml

<struts>
  <constant name="struts.devMode" value="false" />

  <package name="default" namespace="/" extends="struts-default">

    <action name="addCustomer"
    class="com.mkyong.customer.action.CustomerAction">
       <result name="success">WEB-INF/pages/customer.jsp</result>
    </action>

      </package>
</struts>

代码没有给出任何错误，但数据库中没有插入数据。