Frijol no instanciado
Plataforma estoy usando:
Fedora 20;mariadb-5.5.34-2.fc20.x86_64;Eclipse Kepler Service Release de www.eclipse.org;Apache TomEE plus 1.6.0.Estoy implementando ejemplo
y estoy tratando de gestionar para trabajar la interfaz de inicio de sesión. Mi problema es que el Java Bean de Login.xhtml no ha sido instanciado. ¿Como es posible? Estoy bastante familiarizado con Java Beans, verifiqué errores y el ejemplo proviene de un experto programador de Java. Descubrí este problema porque no pude trabajar con el inicio de sesión y el depurador no mostró variables.Eclipse: no se muestran variables en la depuración de Java EE
Adjunto el login.xhtml y el bean Java. Omito las bibliotecas GUI porque creo que no son parte del problema.
Login.xhtml
<ui:composition template="/templates/layout.xhtml"
xmlns="http://www.w3.org/1999/xhtml"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:p="http://primefaces.org/ui"
>
<ui:define name="content">
<h:form styleClass="loginPanelStyle">
<p:growl id="msgs" showDetail="true" sticky="false" />
<p:panelGrid columns="2">
<f:facet name="header">
Login Panel
</f:facet>
<h:outputText value="Username : "></h:outputText>
<p:inputText id="username" value="#{loginController.username}" required="true" requiredMessage="Please Enter Username!" message="fc">
<f:validateLength minimum="1" />
</p:inputText>
<h:outputText value="Password : "></h:outputText>
<p:password id="password" value="#{loginController.password}" required="true" requiredMessage="Please Enter password!">
<f:validateLength minimum="1" />
</p:password>
<f:facet name="footer">
<p:commandButton value="Submit" update="msgs" actionListener="#{loginController.login}" type="submit" icon="ui-icon-check" style="margin:0"></p:commandButton>
</f:facet>
</p:panelGrid>
</h:form>
</ui:define>
</ui:composition>
LoginController.java
package controller;
import util.DateUtility;
import java.io.IOException;
import java.io.Serializable;
import java.security.Principal;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.enterprise.context.SessionScoped;
import javax.faces.application.FacesMessage;
import javax.faces.context.FacesContext;
import javax.faces.event.ActionEvent;
import javax.inject.Inject;
import javax.inject.Named;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
/**
* Login Controller class allows only authenticated users to log in to the web
* application.
*
* @author Emre Simtay <[email protected]>
*/
@Named
@SessionScoped
public class LoginController implements Serializable {
@Inject
private transient Logger logger;
private String username;
private String password;
/**
* Creates a new instance of LoginController
*/
public LoginController() {
System.out.println("che diamine");
}
// Getters and Setters
/**
* @return username
*/
public String getUsername() {
return username;
}
/**
*
* @param username
*/
public void setUsername(String username) {
this.username = username;
}
/**
*
* @return password
*/
public String getPassword() {
return password;
}
/**
*
* @param password
*/
public void setPassword(String password) {
this.password = password;
}
/**
* Listen for button clicks on the #{loginController.login} action,
* validates the username and password entered by the user and navigates to
* the appropriate page.
*
* @param actionEvent
*/
public void login(ActionEvent actionEvent) {
System.out.println("CONSOLE PRINT TEST");
FacesContext context = FacesContext.getCurrentInstance();
HttpServletRequest request = (HttpServletRequest) context.getExternalContext().getRequest();
try {
String navigateString = "";
// Checks if username and password are valid if not throws a ServletException
request.login(username, password);
// gets the user principle and navigates to the appropriate page
Principal principal = request.getUserPrincipal();
if (request.isUserInRole("Administrator")) {
navigateString = "/admin/AdminHome.xhtml";
} else if (request.isUserInRole("Manager")) {
navigateString = "/manager/ManagerHome.xhtml";
} else if (request.isUserInRole("User")) {
navigateString = "/user/UserHome.xhtml";
}
try {
logger.log(Level.INFO, "User ({0}) loging in #" + DateUtility.getCurrentDateTime(), request.getUserPrincipal().getName());
context.getExternalContext().redirect(request.getContextPath() + navigateString);
} catch (IOException ex) {
logger.log(Level.SEVERE, "IOException, Login Controller" + "Username : " + principal.getName(), ex);
context.addMessage(null, new FacesMessage("Error!", "Exception occured"));
}
} catch (ServletException e) {
logger.log(Level.SEVERE, e.toString());
context.addMessage(null, new FacesMessage("Error!", "The username or password you provided does not match our records."));
}
}
/**
* Listen for logout button clicks on the #{loginController.logout} action
* and navigates to login screen.
*/
public void logout() {
HttpSession session = (HttpSession) FacesContext.getCurrentInstance().getExternalContext().getSession(false);
HttpServletRequest request = (HttpServletRequest) FacesContext.getCurrentInstance().getExternalContext().getRequest();
logger.log(Level.INFO, "User ({0}) loging out #" + DateUtility.getCurrentDateTime(), request.getUserPrincipal().getName());
if (session != null) {
session.invalidate();
}
FacesContext.getCurrentInstance().getApplication().getNavigationHandler().handleNavigation(FacesContext.getCurrentInstance(), null, "/Login.xhtml?faces-redirect=true");
}
}
Consola tomee:
web.xml
árbol de carpetas:
$ tree
.
├── build
│ └── classes
│ ├── controller
│ │ └── LoginController.class
│ ├── entity
│ │ ├── Address.class
│ │ ├── BaseEntity.class
│ │ ├── Role.class
│ │ └── User.class
│ ├── META-INF
│ │ └── persistence.xml
│ └── util
│ └── DateUtility.class
├── src
│ ├── controller
│ │ └── LoginController.java
│ ├── entity
│ │ ├── Address.java
│ │ ├── BaseEntity.java
│ │ ├── Role.java
│ │ └── User.java
│ ├── META-INF
│ │ └── persistence.xml
│ └── util
│ └── DateUtility.java
└── WebContent
├── admin
│ ├── AdminHome.xhtml
│ └── UserList.xhtml
├── ErrorAccessDenied.xhtml
├── Login.xhtml
├── manager
│ └── ManagerHome.xhtml
├── META-INF
│ └── MANIFEST.MF
├── resources
│ ├── css
│ │ └── default.css
│ └── primefaces-nz
│ ├── images
│ │ ├── ui-bg_flat_30_cccccc_40x100.png
│ │ ├── ui-bg_flat_50_5c5c5c_40x100.png
│ │ ├── ui-bg_glass_40_ffc73d_1x400.png
│ │ ├── ui-bg_highlight-hard_20_16475f_1x100.png
│ │ ├── ui-bg_highlight-soft_33_1258bf_1x100.png
│ │ ├── ui-bg_highlight-soft_35_222222_1x100.png
│ │ ├── ui-bg_highlight-soft_44_444444_1x100.png
│ │ ├── ui-bg_highlight-soft_80_1442c8_1x100.png
│ │ ├── ui-bg_inset-hard_30_dedede_1x100.png
│ │ ├── ui-icons_222222_256x240.png
│ │ ├── ui-icons_292cd1_256x240.png
│ │ ├── ui-icons_a83300_256x240.png
│ │ ├── ui-icons_cccccc_256x240.png
│ │ └── ui-icons_ffffff_256x240.png
│ └── theme.css
├── templates
│ ├── layout.xhtml
│ └── tiles
│ └── LeftMenu.xhtml
├── user
│ └── UserHome.xhtml
└── WEB-INF
├── faces-config.xml
├── lib
└── web.xml
24 directories, 41 files