I have a problem with JSF2 @ManagedProperty annotation. I have a managed bean that create a user, then i want to pass this user to another bean to display other informations relative to that user. So my code is below :
@Named("userController")
@SessionScoped
public class UserController implements Serializable {
@EJB
private session.UserFacade ejbFacade;
private List<User> items = null;
private User selected;
private User utente;
private String user;
private String pass;
----getter and setter----
In the Schedule Bean I use the userController bean in the @PostConstruct :
@Named(value = "scheduleController")
@SessionScoped
public class ScheduleController implements Serializable {
private ScheduleModel eventModel;
private ScheduleEvent event = new DefaultScheduleEvent();
@EJB
ActivityFacade ejbFacade;
@ManagedProperty(value="#{userController}")
private UserController credentials;
public ScheduleController() {
}
@PostConstruct
public void init(){
eventModel = new DefaultScheduleModel();
List<Activity> daFare =ejbFacade.findForUser(credentials.getUtente().getIdUser());
for(int i=0;i<daFare.size();i++){
eventModel.addEvent(new DefaultScheduleEvent(daFare.get(i).getDescrizione(),daFare.get(i).getDalleOre(),daFare.get(i).getAlleOre() ));
}
}
public void setCredentials(UserController credentials) {
this.credentials = credentials;
}
When i debug the code, I see that the UserController credentials is always null.... What's wrong ? I need to specify something in faces-config.xml ? Thanks a lot for your tips.
EDIT :
After change @ManagedProperty with @Inject and after add the below beans.xml in WEB-INF folder, the problem persist.
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/beans_1_0.xsd">
The app work in this way: A user can log in via this xhtml page:
<body>
<h:form>
<p:growl id="msgs" showDetail="true" />
<p:panel header="Inserisci i tuoi dati" style="margin: 0 auto; text-align: center" >
<h:panelGrid columns="2" cellpadding="5" style="margin: 0 auto; text-align: center">
<p:outputLabel value="Username"/>
<p:inputText value="#{userController.user}" required="true" label="Username" size="40"/>
<p:outputLabel value="Password" />
<p:password value="#{userController.pass}" required="true" label="Password" size="40"/>
<p:commandButton action="#{userController.validateLogin}" value="Login" update="msgs" ajax="false" style="text-align: center"/>
</h:panelGrid>
</p:panel>
</h:form>
</body>
After submit the form, the userController verify that this specific user exist in a DB table and then instantiate the User utente ( id, username, password, email as field ). After this, the app redirect to home.xhtml that display several user's information and select several information of a DB table selected by user's id. Here is the code where I set User utente:
public String validateLogin(){
String output="home";
boolean exist=false;
exist=ejbFacade.logValid(user,pass);
if(!exist){
//FacesContext.getCurrentInstance().getExternalContext().invalidateSession();
FacesContext context = FacesContext.getCurrentInstance();
context.addMessage(null, new FacesMessage(FacesMessage.SEVERITY_INFO,"Username o Password errata","Contattare l'amministratore"));
return "index";
}else{
utente=ejbFacade.setUtente(user);
FacesContext context = FacesContext.getCurrentInstance();
context.addMessage(null, new FacesMessage("Accesso eseguito con successo.","Bentornato " + user));
return output;
}
}
The code sequence in which i control the existece of a user and set the utente is:
@Stateless
public class UserFacade extends AbstractFacade<User> {
@PersistenceContext(unitName = "ImmobiliareWebPU")
private EntityManager em;
@Override
protected EntityManager getEntityManager() {
return em;
}
public UserFacade() {
super(User.class);
}
public boolean logValid(String user, String pass) {
List<User> utente ;
boolean autorizzato;
String find = "User.findByUsername&Password";
Query query = em.createNamedQuery(find, User.class);
query.setParameter("username", user);
query.setParameter("password", pass);
utente =query.getResultList();
if (utente.isEmpty()) {
autorizzato=false;
}
else{
autorizzato=true;
}
return autorizzato;
}
public User setUtente(String user) {
//SETTO L'UTENTE PER LA SESSIONE DEL PROGRAMMA
User utente;
String find = "User.findByUsername";
Query query = em.createNamedQuery(find, User.class);
query.setParameter("username", user);
utente =(User) query.getSingleResult();
return utente;
}
}
the code where I need user's information is :
@Named(value = "scheduleController")
@RequestScoped
public class ScheduleController implements Serializable {
private ScheduleModel eventModel;
private ScheduleEvent event = new DefaultScheduleEvent();
@EJB
ActivityFacade ejbFacade;
@Inject
private UserController credentials;
public ScheduleController() {
}
@PostConstruct
public void init(){
eventModel = new DefaultScheduleModel();
List<Activity> daFare =ejbFacade.findForUser(credentials.getUtente().getIdUser());
for(int i=0;i<daFare.size();i++){
eventModel.addEvent(new DefaultScheduleEvent(daFare.get(i).getDescrizione(),daFare.get(i).getDalleOre(),daFare.get(i).getAlleOre() ));
}
}
In the ejbFacade i make a simple query :
@Stateless
public class ActivityFacade extends AbstractFacade<Activity> {
@PersistenceContext(unitName = "ImmobiliareWebPU")
private EntityManager em;
@Override
protected EntityManager getEntityManager() {
return em;
}
public ActivityFacade() {
super(Activity.class);
}
public List<Activity> findForUser(int utenteId) {
//RICHIEDO LE ATTIVITA' DEL SINGOLO UTENTE
List<Activity> daFare ;
String find = "Activity.findByUserId";
Query query = em.createNamedQuery(find, Activity.class);
query.setParameter("idUser", utenteId);
daFare =query.getResultList();
return daFare;
}
}
In debug mode i see an istance of UserController with all null fields; it seems to be a new istance of UserController. I use also "import javax.enterprise.context.SessionScoped" . Where is my fault ?
