Hi,
ich möchte IceFaces und Hibernate verwenden, aber es funktioniert nicht.
Hier sind meine Dateien:
HibernateUtil
personList.jspx
PersonService.java
Wenn meine personList.jspx die Methode PersonService.getPersonList() aufrufen möchte, bekommen ich diesen Fehler: javax.el.ELException: Error reading 'personList' on type de.waldhausweg7.service.PersonService
Weiß jemand, was falsch sein könnte?
ich möchte IceFaces und Hibernate verwenden, aber es funktioniert nicht.
Hier sind meine Dateien:
HibernateUtil
Code:
package de.waldhausweg7.utils;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
public class HibernateUtil {
private static HibernateUtil _instance = new HibernateUtil();
private SessionFactory _sessionFactory;
public static SessionFactory getSessionFactory() {
return _instance._sessionFactory;
}
public static void closeSession(Session session) {
try {
if ((session != null) && (session.isOpen())) {
session.close();
}
}
catch (HibernateException he) {
}
}
public static Session openSession() throws HibernateException {
return openSession(getSessionFactory());
}
public static Session openSession(SessionFactory sessionFactory)
throws HibernateException {
return _instance._sessionFactory.getCurrentSession();
}
private HibernateUtil() {
try {
Configuration configuration = new Configuration();
configuration = configuration.configure();
_sessionFactory = configuration.buildSessionFactory();
}
catch (Exception e) {
}
}
}personList.jspx
Code:
<f:view xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:ice="http://www.icesoft.com/icefaces/component">
<ice:outputDeclaration doctypeRoot="HTML"
doctypePublic="-//W3C//DTD XHTML 1.0 Transitional//EN"
doctypeSystem="http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"/>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"></meta>
<title>Mieterliste</title>
</head>
<body>
<ice:form>
<ice:dataTable id="cultures" value="#{personService.personList}" var="row" border="1">
<h:column>
<f:facet name="header">
<ice:outputText value="Id"/>
</f:facet>
<h:outputText id="personId" value="#{row.personId}" />
</h:column>
<h:column>
<f:facet name="header">
<h:outputText value="Personenname"/>
</f:facet>
<h:outputText value="#{row.personName}"/>
</h:column>
<h:column>
<f:facet name="header">
<h:outputText value="Aendern"/>
</f:facet>
<h:commandLink id="Edit" action="editPerson" actionListener="#{person.selectPerson}">
<h:outputText value="Aendern" />
<f:param id="selectId" name="selectId" value="#{row.personId}" />
</h:commandLink>
</h:column>
<h:column>
<f:facet name="header">
<h:outputText value="Loeschen"/>
</f:facet>
<h:commandLink id="Delete" action="personList" actionListener="#{person.deletePerson}">
<h:outputText value="Löschen" />
<f:param id="deleteId" name="deleteId" value="#{row.personId}" />
</h:commandLink>
</h:column>
</ice:dataTable>
<ice:commandButton action="addPerson" value="Person hinzufuegen" />
</ice:form>
</body>
</html>
</f:view>PersonService.java
Code:
package de.waldhausweg7.service;
import java.util.List;
import org.hibernate.SQLQuery;
import org.hibernate.Session;
import de.waldhausweg7.utils.HibernateUtil;
import de.waldhausweg7.model.Person;
public class PersonService {
private List personList;
public static void addPerson(Person person) throws Exception {
Session session = null;
try {
session = HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
session.save(person);
session.flush();
session.getTransaction().commit();
}
catch(Exception e) {
throw new Exception(e);
}
finally {
HibernateUtil.closeSession(session);
}
}
public static void deletePerson(int personId) throws Exception {
Session session = null;
try {
session = HibernateUtil.openSession();
session.beginTransaction();
Person person = (Person)session.get(Person.class, personId);
if (person != null) {
session.delete(person);
session.flush();
}
session.getTransaction().commit();
}
catch(Exception e) {
throw new Exception(e);
}
finally {
HibernateUtil.closeSession(session);
}
}
public static void updatePerson(Person person) throws Exception {
Session session = null;
try {
session = HibernateUtil.openSession();
session.beginTransaction();
session.update(person);
session.flush();
session.getTransaction().commit();
}
catch(Exception e) {
throw new Exception(e);
}
finally {
HibernateUtil.closeSession(session);
}
}
public List getPersonList() throws Exception {
Session session = null;
try {
System.out.println("Hallo 1.5!!!");
session = HibernateUtil.openSession();
System.out.println("Hallo 4!!!");
session.beginTransaction();
System.out.println("Hallo 2!!!");
SQLQuery q = session.createSQLQuery("SELECT * FROM Person");
System.out.println("Hallo 3!!!");
q.addEntity(Person.class);
personList = q.list();
session.getTransaction().commit();
return personList;
}
catch(Exception e) {
throw new Exception(e);
}
finally {
HibernateUtil.closeSession(session);
}
}
public static Person getPerson(int personId) throws Exception {
Session session = null;
try {
session = HibernateUtil.openSession();
session.beginTransaction();
Person person = (Person)session.get(Person.class, new Integer(personId));
session.getTransaction().commit();
return person;
}
catch(Exception e) {
throw new Exception(e);
}
finally {
HibernateUtil.closeSession(session);
}
}
}Wenn meine personList.jspx die Methode PersonService.getPersonList() aufrufen möchte, bekommen ich diesen Fehler: javax.el.ELException: Error reading 'personList' on type de.waldhausweg7.service.PersonService
Weiß jemand, was falsch sein könnte?
