问题
1.1, IceFaces 3.0.1 and JSF 2.1 and was trying to work with ace:fileentry. I can't understand why the listener is never called! Even the IDE sends me a warning "pruebaBean.sampleListener is an unknown property". Here is a short example of what i'm doing. When click the submit button nothing happen. Can someone help me ?? Could be some kind of bug?
prueba.xhtml:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org /TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:ice="http://www.icesoft.com/icefaces/component"
xmlns:ace="http://www.icefaces.org/icefaces/components">
<h:head>
</h:head>
<h:body>
<ice:form id="usuarioForm">
<ice:panelGrid columns="2">
<ace:fileEntry id="fileEntryImage" absolutePath="c:\iTablero\imagenes"
useSessionSubdir="false" useOriginalFilename="false"
fileEntryListener="#{pruebaBean.sampleListener}"/>
<ice:commandButton type="submit" value="Subir archivo"/>
</ice:panelGrid>
<ice:messages/>
</ice:form>
</h:body>
PruebaBean.java:
package com.itablero.backingbeans;
import java.io.Serializable;
import javax.annotation.ManagedBean;
import javax.faces.bean.RequestScoped;
import org.icefaces.ace.component.fileentry.FileEntry;
import org.icefaces.ace.component.fileentry.FileEntryEvent;
import org.springframework.stereotype.Controller;
@ManagedBean
@Controller
@RequestScoped
public class PruebaBean implements Serializable {
public void sampleListener (FileEntryEvent e) {
System.out.println("it work!");
FileEntry fe = (FileEntry) e.getComponent();
//some others operations
}
}
Update 1
Thanks to @fischermatte I found the problem was replace ice:commandButton for h:commandButton. But when I applied this to the original complete form and didn't work. The fileEntryListener method is never called. Can someone see the error here? Logically the previous example and the code below have the same web.xml, faces-config.xml, etc. Note the button to submit the file is h:commandButton, and there is a ice:commandButton for complete form. I already tried to change this por en h:cb. Here is the original form (that is display in a popup/modal window) and bean:
usuariosList.xhtml
<ice:panelPopup rendered="#{usuariosBean.showPopup}"
visible="#{usuariosBean.showPopup}"
modal="true"
autoCentre="true">
<f:facet name="header">
<h:panelGroup>
<h:panelGroup style="float: left;">
Usuario
</h:panelGroup>
<h:panelGroup style="float: right;">
<ice:form>
<h:commandButton image="/resources/images/popup-close.png"
alt="Cerrar" title="Cerrar"
style="height: 11px; width: 11px; border: 0;"
action="#{usuariosBean.closePopup}"/>
</ice:form>
</h:panelGroup>
</h:panelGroup>
</f:facet>
<f:facet name="body">
<ice:form id="usuarioForm">
<ice:panelGrid columns="2">
<p>Nombre:</p>
<ice:inputText id="nombre" label="nombre" value="#{usuariosBean.usuario.nombre}" size="40" />
<p>Imagen:</p>
<ice:graphicImage value="#{usuariosBean.usuario.imagen}"/>
<ace:fileEntry id="fileEntryImage" absolutePath="c:\iTablero\imagenes"
useSessionSubdir="false" useOriginalFilename="false"
fileEntryListener="#{usuariosBean.formListener}"/>
<h:commandButton type="submit" value="Subir archivo"/>
</ice:panelGrid>
<ice:messages for="usuarioForm"/>
<ice:commandButton value="Guardar" action="#{usuariosBean.save()}" />
</ice:form>
</f:facet>
</ice:panelPopup>
UsuariosBean.java
package com.itablero.backingbeans;
import com.itablero.excepciones.DAOException;
import com.itablero.modelo.Usuario;
import com.itablero.servicios.AdminService;
import java.io.Serializable;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.ViewScoped;
import org.icefaces.ace.component.fileentry.FileEntry;
import org.icefaces.ace.component.fileentry.FileEntryEvent;
import org.icefaces.ace.component.fileentry.FileEntryResults;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
@ManagedBean
@Controller
@ViewScoped
public class UsuariosBean implements Serializable {
@Autowired
private AdminBean adminBean;
@Autowired
private AdminService adminService;
private Usuario usuario = new Usuario();
private boolean showPopup;
//getter and setters
public boolean isShowPopup() {
return showPopup;
}
public void setShowPopup(boolean showPopup) {
this.showPopup = showPopup;
}
public void openPopup() {
this.showPopup = true;
}
public void closePopup() {
this.showPopup = false;
this.usuario = new Usuario();
}
public String edit(Usuario usuario) {
this.usuario = usuario;
this.showPopup = true;
return "usuariosList";
}
public String delete(Usuario usuario) {
adminService.delete(usuario);
return "usuariosList";
}
public String save() {
try {
usuario.setTutor(adminBean.getLoggedTutor());
adminService.save(usuario);
} catch (DAOException ex) {
Logger.getLogger(TutoresBean.class.getName()).log(Level.SEVERE, null, ex);
}
usuario = new Usuario();
this.showPopup = false;
return "usuariosList";
}
public void formListener(FileEntryEvent e) {
System.out.println("Entro");
FileEntry fe = (FileEntry)e.getComponent();
FileEntryResults results = fe.getResults();
//other stuff
}
}
Update 2
I think I figured out why is not working, but need some help with the fix. I made the corrections as @fischermatte advice me, but didn't work.
To reach this page with the form, first have to navigate throw a the main page /admin/admin.html, if a look the URL in the browser appears http://localhost:8084/iTablero/admin/admin.html. This page has a menu, one of this menu options bring me to the page with the problematic form. But, because is an AJAX call (if i'm not wrong) the URL in the browser does not change, it keeps the http://localhost:8084/iTablero/admin/admin.html. And the fileEntry never calls the listener.
Now, if I enter the URL by myself http://localhost:8084/iTablero/admin/usuariosList.html, the page is displayed correctly as before, but now THE FILEENTRY WORKS PERFECTLY!!!
I have no idea how to fix this, will have to use redirects? I think is something around AJAX.......help pls! :-D
Update 3
That is the menu, without redirect is not working.
<h:form>
<ice:menuBar orientation="horizontal">
<ice:menuItem value="Tutores" action="tutoresList"/>
<ice:menuItem value="Usuarios" action="usuariosList"/>
<ice:menuItem value="Tableros" action="tablerosList"/>
<ice:menuItem value="Simbolos" action="simbolosList"/>
<ice:menuItem value="Estadisticas" action="estadisticas"/>
<ice:menuItem value="Salir" action="#{adminBean.logout()}"/>
</ice:menuBar>
</h:form>
With action="usuariosList?faces-redirect=true" works fine.
Already test with forward navigation to a basic page form with only a FileEntry and doesn't work too. Again, if I use redirect, works fine. I think is some kind of issue with this component and forward navigation.
回答1:
You have to use JSF's commandbutton instead of icefaces's: <h:commandButton type="submit" value="Subir archivo"/>. It is a known issue in ICEFaces, see ace:fileEntry wiki.
Update 1
Plus you either remove the rendered attribute in the popup or update the popup when opening it like here:
<h:form>
<h:commandButton value="Show Popup" action="#{usuariosBean.showPopupAction}">
<f:ajax render=":popupPanelGroup"/>
</h:commandButton>
</h:form>
<h:panelGroup id="popupPanelGroup">
<ice:panelPopup visible="#{usuariosBean.showPopup}" rendered="#{usuariosBean.showPopup}" modal="true" autoCentre="true">
...
</ice:panelPopup>
</h:panelGroup>
来源：https://stackoverflow.com/questions/10095389/icefaces-3-0-1-fileentry-fileentrylistener-is-never-called