I have been trying to print the values from an ArrayList<String> in JSF Facelets, but with no luck. The value is getting stored in an ArrayList but the output is blank on the page.
Bean file:
import java.io.Serializable;
import java.util.ArrayList;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.RequestScoped;
import javax.faces.bean.SessionScoped;
#ManagedBean(name="newCompanyName")
#SessionScoped
public class CompanyNames implements Serializable {
private static final long serialVersionUID = 1L;
private ArrayList<String> list = new ArrayList<String>();
private String companyName;
public String getCompanyName() {
return companyName;
}
public void setCompanyName(String companyName) {
this.companyName = companyName;
list.add(companyName);
System.out.println("Size of array list is : "+list.size());
for (String number : list) {
System.out.println("Number = " + number);
}
}
public CompanyNames(String companyName) {
this.companyName = companyName;
}
public CompanyNames() {
}
}
Here is my JSF file from an XHTML 1.0 Transitional file:
<?xml version="1.0" encoding="ISO-8859-1" ?>
<!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:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:c="http://java.sun.com/jsp/jstl/core"
xmlns:ui="http://java.sun.com/jsf/facelets">
<h:head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
<title>Insert title here</title>
</h:head>
<h:body>
<ui:repeat var="item" value="#{CompanyNames.list}">
<h1>#{item}</h1>
</ui:repeat>
</h:body>
</html>
Instead of
<ui:repeat var="item" value="#{CompanyNames.list}"> <h1>#{item}</h1> </ui:repeat>
use
<ui:repeat var="item" value="#{newCompanyName.list}"> <h1>#{item}</h1> </ui:repeat>
You will also need a getList method for the class CompanyNames
public List<String> getList() {
return this.list;
}
Use companyNames.list instead of CompanyNames.list and you will also need the get() function of list.
Related
I have a primefaces datatable where the commandButton's action addItem within the columns header facet always fires the CDI #ViewScoped beans #PostConstruct method, while the commandButton's action editItem from the column does not?!
Curiously enough this happens only, if the action methods return a non-null string?! Means, if both methods return null, the #PostConstruct method is not called, but I use a non-null string, because clicking the buttons should show a new #ViewScoped page.
The main problem in my real application is, that I do some initialization stuff within #PostConstruct, which should really happen only once during page construction!
datatable.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:p="http://primefaces.org/ui"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:ui="http://xmlns.jcp.org/jsf/facelets"
xmlns:f="http://xmlns.jcp.org/jsf/core">
<f:view>
<p:messages autoUpdate="true" showDetail="true"/>
<h:outputLabel value="Datatable Test"/>
<h:form>
<p:dataTable var="item" value="#{datatableBean.items}">
<p:column>
<f:facet name="header">
<p:commandButton value="Add Item" action="#{datatableBean.editItem(null)}"/>
</f:facet>
<p:commandButton value="Edit Item" action="#{datatableBean.editItem(item)}"/>
</p:column>
<p:column headerText="Id">
<p:outputLabel value="#{item.id}"/>
</p:column>
<p:column headerText="Name">
<p:outputLabel value="#{item.name}"/>
</p:column>
</p:dataTable>
</h:form>
</f:view>
</html>
addItem.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:p="http://primefaces.org/ui"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:ui="http://xmlns.jcp.org/jsf/facelets"
xmlns:f="http://xmlns.jcp.org/jsf/core">
<f:view>
<h:outputLabel value="Add Item"/>
</f:view>
</html>
editItem.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:p="http://primefaces.org/ui"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:ui="http://xmlns.jcp.org/jsf/facelets"
xmlns:f="http://xmlns.jcp.org/jsf/core">
<f:view>
<h:outputLabel value="Edit Item"/>
</f:view>
</html>
DatatableBean.java
package my.web.datatable;
import javax.annotation.PostConstruct;
import javax.faces.application.FacesMessage;
import javax.faces.context.FacesContext;
import javax.faces.view.ViewScoped;
import javax.inject.Named;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
#ViewScoped
#Named
public class DatatableBean implements Serializable {
private List<Item> items = new ArrayList<>();
#PostConstruct
private void init() {
System.out.println(DatatableBean.class.getName() + " -> init()");
for (int i = 1; i <= 5; i++) {
items.add(new Item(i, "Item " + i));
}
System.out.println(DatatableBean.class.getName() + " <- init()");
}
public List<Item> getItems() {
return items;
}
public String editItem(Item item) {
System.out.println(DatatableBean.class.getName() + " -> editItem(): " + item);
if (item == null) {
FacesContext.getCurrentInstance().addMessage(null,
new FacesMessage(FacesMessage.SEVERITY_INFO, "add item", null));
System.out.println(DatatableBean.class.getName() + " <- editItem()");
return "addItem.xhtml";
} else {
FacesContext.getCurrentInstance().addMessage(null,
new FacesMessage(FacesMessage.SEVERITY_INFO, "edit item", item.toString()));
System.out.println(DatatableBean.class.getName() + " <- editItem()");
return "editItem.xhtml";
}
}
}
Item.java
package my.web.datatable;
public class Item {
private final int id;
private final String name;
public Item(int id, String name) {
this.id = id;
this.name = name;
}
public int getId() {
return id;
}
public String getName() {
return name;
}
#Override
public String toString() {
return String.format("[id=%d,name=%s]", id, name);
}
}
Is this a bug regarding command button within datatable column header facet? Or is there a better way, to do what I want?
I am using primefaces 6.0 on wildfly-10.0.0.Final with Mojarra 2.2.12!
Update: removed logger; call same method for addItem / editItem; added redirect / forward pages
in my JSF2 app I have screens composed with :
Header
Body
In the header I have a combo list. At each change in value in the combo list I have an Ajax request that updates the data in the Body. So far everything is working properly. Now the home screen's structure should be change when the value of combo list change. To do this I have :
1 ManagedBean HomeBean that manage the home
1 ManagedBean HeaderBean that manage the header
2 object HomeScreen1.java and HomeScreen2.java that allows me to valued data from each screen
2 services HomeScreen1Loader.java and HomeScreen2Loader.java that manage loading of each type of screen
1 template home.xhtml
2 fichier home1.xhtml et home2.xhtml
When I log in to the application, I get the good page corresponding (Element type 1 => home page 1). But when I select a type 2 item, the actionListener methode is execute, ManagedBean's data was updated (for type 2 screen) , but the page does not updated. What do you do ?
HeaderBean.java :
package com.omb.view;
import java.io.Serializable;
import java.util.List;
import javax.faces.event.ValueChangeEvent;
import javax.faces.model.SelectItem;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Controller;
import com.omb.exception.TechnicalException;
import com.omb.view.util.Constants;
import com.omb.view.util.FacesUtils;
#Controller
#Scope("session")
public class HeaderBean implements Serializable {
private static final long serialVersionUID = 1L;
private static final Log logger = LogFactory.getLog(HeaderBean.class);
private List<SelectItem> elementsDisplayed;
public void initComboList() throws FunctionnalException {
// init the combo list
}
public void elementChangeListener(ValueChangeEvent event) {
if (event.getNewValue() != null) {
// Do traitement....
ContextBean contextBean = (ContextBean) FacesUtils.getObjectInSession(ContextBean.CONTEXT_BEAN_NAME);
AbstractBean currentBean = (AbstractBean) FacesUtils.getObjectInSession(contextBean
.getCurrentBeanInSession());
try {
currentBean.refresh();
} catch (TechnicalException e) {
logger.error(e.getMessage(), e);
}
}
}
public String disconnect() {
FacesContext.getCurrentInstance().getExternalContext().invalidateSession();
return "/login.xhtml?faces-redirect=true";
}
public List<SelectItem> getElementsDisplayed() {
return elementsDisplayed;
}
public void setElementsDisplayed(List<SelectItem> elementsDisplayed) {
this.elementsDisplayed = elementsDisplayed;
}
}
ContextBean.java :
package com.omb.view;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Controller;
import com.omb.view.util.Constants;
#Controller
#Scope("session")
public class ContextBean {
public final static String CONTEXT_BEAN_NAME = "contextBean";
private String templateHomeName;
private boolean defaultHome;
public String getTemplateHomeName() {
return this.templateHomeName;
}
public void setTemplateHomeName(String templateHomeName) {
this.templateHomeName = templateHomeName;
}
public boolean isDefaultHome() {
return this.defaultHome;
}
public void setDefaultHome(boolean defaultHome) {
this.defaultHome = defaultHome;
}
}
HomeBean.java :
package com.omb.view.home;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Controller;
import com.omb.exception.FunctionnalException;
import com.omb.exception.TechnicalException;
import com.omb.view.AbstractBean;
import com.omb.view.util.Constants;
#Controller
#Scope("session")
public class HomeBean extends AbstractBean {
private static final Log logger = LogFactory.getLog(HomeBean.class);
public static final String HOME_1_NAME = "home1.xhtml";
public static final String HOME_2_NAME = "home2.xhtml";
#Autowired
private HomeScreen1 homeScreen1;
#Autowired
private HomeScreen2 homeScreen2;
#SuppressWarnings({"unchecked", "rawtypes"})
public String display() throws TechnicalException, FunctionnalException {
ContextBean context = (ContextBean) FacesUtils.getObjectInSession(ContextBean.CONTEXT_BEAN_NAME);
if (!isInitialized()) {
if (defaultHomeScreen == null) {
defaultHomeScreen = new DefaultHomeScreen();
}
if (eurHomeScreen == null) {
eurHomeScreen = new EurHomeScreen();
}
AbstractHomeScreenLoader loader = HomeScreenLoaderFactory.getLoader(getTypeElement());
if (Constants.CODE_TYPE_1.equals(getTypeElement()) {
loader.load(homeScreen1);
context.setTemplateHomeName(HOME_1_NAME);
} else {
loader.load(homeScreen2);
context.setTemplateHomeName(HOME_2_NAME);
}
setInitialized(true);
} else if (!upToDate) {
refresh();
}
return "home";
}
#SuppressWarnings({"unchecked", "rawtypes"})
public void refresh() throws TechnicalException {
upToDate = true;
AbstractHomeScreenLoader loader = HomeScreenLoaderFactory.getLoader(getTypeElement());
if (Constants.CODE_TYPE_1.equals(userContext.getCurrentHotelCountryId())) {
loader.refresh(homeScreen1);
} else {
loader.refresh(homeScreen2);
}
}
public HomeScreen1 getHomeScreen1() {
return this.homeScreen1;
}
public void setHomeScreen1(HomeScreen1 homeScreen1) {
this.homeScreen1 = homeScreen1;
}
public HomeScreen2 getHomeScreen2() {
return this.homeScreen2;
}
public void setHomeScreen2(HomeScreen2 homeScreen2) {
this.homeScreen2 = homeScreen2;
}
}
layout.xhtml main template of the application :
<?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:ui="http://java.sun.com/jsf/facelets"
xmlns:ice="http://www.icesoft.com/icefaces/component">
<h:head>
<title><ui:insert name="title">OMB</ui:insert></title>
<ice:outputStyle href="/xmlhttp/css/xp/xp.css" rel="stylesheet" type="text/css" />
<link type="text/css" rel="stylesheet"
href="#{facesContext.externalContext.requestContextPath}/resources/css/style.css" />
</h:head>
<h:body>
<h:panelGroup id="page" styleClass="mainMaster" layout="block">
<h:panelGroup id="header" styleClass="header" layout="block">
<ui:insert name="header">
<ui:include
src="/pages/layer/header/#{contextBean.templateHeaderName}" />
</ui:insert>
</h:panelGroup>
<h:panelGroup id="headerMenu" styleClass="menu" layout="block">
<ui:insert name="buttons">
<ui:include
src="/pages/layer/menu/#{contextBean.templateMenuButtonName}" />
</ui:insert>
</h:panelGroup>
<h:panelGroup id="main" styleClass="mainContent" layout="block">
<h:panelGroup id="content" styleClass="content" layout="block">
<ui:insert name="content" />
</h:panelGroup>
</h:panelGroup>
<h:panelGroup id="footer" styleClass="footer" layout="block">
<ui:insert name="footer">
<ui:include src="/pages/layer/footer/footer.xhtml" />
</ui:insert>
</h:panelGroup>
</h:panelGroup>
</h:body>
</html>
header.xhtml, page which manage the combo list:
<?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:ui="http://java.sun.com/jsf/facelets">
<body>
<ui:composition>
<ice:form id="headerForm" xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:ice="http://www.icesoft.com/icefaces/component"
xmlns:ace="http://www.icefaces.org/icefaces/components"
xmlns:c="http://java.sun.com/jstl/core"
xmlns:ui="http://java.sun.com/jsf/facelets">
<h:panelGroup styleClass="logo" layout="block">
<ice:graphicImage styleClass="imgLogoHR"
value="#{facesContext.externalContext.requestContextPath}/resources/images/common/logo/Logo.png" />
<h:panelGroup styleClass="loginArea" layout="block">
<h:panelGroup styleClass="area" layout="block">
<h:panelGroup styleClass="comboHotel" layout="block">
<ace:simpleSelectOneMenu id="selectCurrentElement"
value="#{headerBean.currentElementDisplayed}"
valueChangeListener="#{headerBean.elementChangeListener}"
labelPosition="left" indicatorPosition="left" required="false"
rendered="#{not empty headerBean.elementsDisplayed}">
<f:selectItems value="#{headerBean.elementsDisplayed}" />
<ace:ajax execute="#this" render="#all" />
</ace:simpleSelectOneMenu>
</h:panelGroup>
</h:panelGroup>
</h:panelGroup>
</h:panelGroup>
</ice:form>
</ui:composition>
</body>
</html>
home.xhtml main template of home page and component should be refresh:
<?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:f="http://java.sun.com/jsf/core"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:ice="http://www.icesoft.com/icefaces/component"
xmlns:ace="http://www.icefaces.org/icefaces/components">
<h:body>
<ui:composition template="/pages/layer/layout.xhtml">
<ui:define name="content">
<ui:include
src="/pages/home/#{contextBean.templateHomeName}" />
</ui:define>
</ui:composition>
</h:body>
</html>
I found the solution, the problem came to the ManagedBean ContextBean's templateHomeName attribute that was not properly valued. I added in loader.load(homeScreen1) and refresh and everything it's ok. I should upgrade my JSF version : 2.1.0-b11 to 2.1.26 because I had an error when refresh.
I'm trying to do SIMPLE webapp which show partyguest list and allow me to add new guest. I want to store guests in ArrayList. I don't know where and how to invoke party.addGuest() method.
index.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://xmlns.jcp.org/jsf/html">
<h:head>
<title>Big Party</title>
</h:head>
<h:body>
<h2>Add new guest to Big Party: </h2>
<h:form>
<h:inputText id="guestName" value="#{guest.name}"/>
<h:commandButton value="Add guest" action="guests" />
</h:form>
<h:link value="GuestList" outcome="guests" />
</h:body>
</html>
guests.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://xmlns.jcp.org/jsf/html"
xmlns:ui="http://xmlns.jcp.org/jsf/facelets">
<h:head>
<title>Super Party</title>
</h:head>
<h:body>
<h2>New guest:</h2>
<h:outputLabel value="#{guest.name}" />
<h2>Guests:</h2>
<ul>
<ui:repeat value="#{party.guests}" var="curr">
<li>#{curr}</li>
</ui:repeat>
</ul>
<h2>Guests count:</h2>
<h:outputLabel value="#{party.cnt}"/>
</h:body>
</html>
Party.java
package managedBeans;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import javax.annotation.PostConstruct;
import javax.faces.bean.ApplicationScoped;
import javax.faces.bean.ManagedBean;
#ManagedBean(name = "party")
#ApplicationScoped
public class Party implements Serializable {
private List<String> guests;
private int cnt;
public Party() {
}
#PostConstruct
public void init() {
guests = new ArrayList<>();
guests.add("Guest A");
guests.add("Guest B");
}
public List<String> getGuests() {
return guests;
}
public void addGuest(String guest) {
guests.add(guest);
}
public int getCnt() {
cnt = guests.size();
return cnt;
}
}
Guest.java
package managedBeans;
import java.io.Serializable;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.RequestScoped;
#ManagedBean(name = "guest")
#RequestScoped
public class Guest implements Serializable{
private String name;
public Guest() {
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
If you are using JSF 2, you can have something like this in your index.xhtml (but it can be easily converted to earlier JSF version):
...
<h:form>
<h:inputText id="guestName" value="#{party.newGuest}"/>
<h:commandButton value="Add guest" action="#{party.addGuest()}" />
</h:form>
...
And, in Party.java:
private String newGuest;
....
public String getNewGuest() {
return this.newGuest;
}
public void setNewGuest(String guest) {
this.newGuest = guest;
}
....
public void addGuest() {
guests.add(newGuest);
newGuest = null;
}
No need for Guest.java in this use case. Could be done in a nicer way, though.
I am generating a pdf file with Itextpdf package in jsf managed bean , now I want when user click on p:commandButton , user can see the pdf file in page2.xhtml from p:media .
<?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://xmlns.jcp.org/jsf/html"
xmlns:p="http://primefaces.org/ui">
<h:head>
<title>Facelet Title</title>
</h:head>
<h:body>
<h:form>
<p:inputText value="#{bean.text}" />
<p:commandButton value="Show Pdf File" action="page2" />
</h:form>
</h:body>
</html>
and Page2.xhtml is :
<?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://xmlns.jcp.org/jsf/html"
xmlns:p="http://primefaces.org/ui">
<h:head>
<title>Page 2</title>
</h:head>
<h:body>
<p:media value="??????????" width="500px" height="500px" player="pdf" />
</h:body>
</html>
and my bean file is :
package pack;
import com.itextpdf.text.Document;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.pdf.PdfWriter;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.RequestScoped;
#ManagedBean
#RequestScoped
public class bean {
private String text;
public String getText() {
return text;
}
public void setText(String text) {
this.text = text;
}
/**
* Creates a new instance of bean
*/
public bean() {
this.create_pdf();
}
public void create_pdf(){
try {
Document doc = new Document();
OutputStream file = new FileOutputStream(new File("HelloWorld.pdf"));
PdfWriter writer = PdfWriter.getInstance(doc, file);
doc.open();
doc.add(new Paragraph("A Hello World PDF document."));
doc.add(new Paragraph(this.text));
doc.close();
file.close();
} catch (Exception e) { }
}
}
Thanks to Leo & faissalb for response .
Detail of this response is :
<?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://xmlns.jcp.org/jsf/html"
xmlns:p="http://primefaces.org/ui">
<h:head>
<title>page 1</title>
</h:head>
<h:body>
<p:media value="#{bean.streamedContent}" width="700px" height="700px" player="pdf" />
</h:body>
</html>
and bean file :
package pack;
import com.itextpdf.text.Document;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.pdf.PdfWriter;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Map;
import javax.annotation.PostConstruct;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.RequestScoped;
import javax.faces.context.FacesContext;
import org.primefaces.model.DefaultStreamedContent;
import org.primefaces.model.StreamedContent;
/**
*
* #author alfa
*/
#ManagedBean
#RequestScoped
public class bean {
private static final long serialVersionUID = 1L;
private StreamedContent streamedContent;
#PostConstruct
public void init() {
try {
//----------------------------------
Document doc = new Document();
OutputStream out = new ByteArrayOutputStream();
PdfWriter writer = PdfWriter.getInstance(doc, out);
doc.open();
doc.add(new Paragraph("Hello World. ok........"));
doc.close();
out.close();
InputStream in =new ByteArrayInputStream(((ByteArrayOutputStream)out).toByteArray());
streamedContent = new DefaultStreamedContent(in, "application/pdf");
//-------
Map<String, Object> session = FacesContext.getCurrentInstance().getExternalContext().getSessionMap();
byte[] b = (byte[]) session.get("reportBytes");
if (b != null) {
streamedContent = new DefaultStreamedContent(new ByteArrayInputStream(b), "application/pdf");
}
} catch (Exception e) {
}
}
//==================================================================
public StreamedContent getStreamedContent() {
if (FacesContext.getCurrentInstance().getRenderResponse()) {
return new DefaultStreamedContent();
} else {
return streamedContent;
}
}
//==================================================================
public void setStreamedContent(StreamedContent streamedContent) {
this.streamedContent = streamedContent;
}
//=====================================================================
}
I am using facelets in my views with JSF 2.0. I have two backing beans, two xhtml view files and another xhtml template file. When I have the second view in the webapp directory and I change the language all is Ok but when I put mi second view into the WEB-INF folder and I change the language I have the following error in the chrome network console:
POST http://localhost:8080/Languages/WEB-INF/inventory.xhtml 404 (No Encontrado)
These are my backings beans:
LanguageBean.java:
package com.testapp;
import java.io.Serializable;
import java.util.LinkedHashMap;
import java.util.Locale;
import java.util.Map;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
import javax.faces.context.FacesContext;
#ManagedBean(name = "language")
#SessionScoped
public class LanguageBean implements Serializable {
private static final long serialVersionUID = 1L;
private String localeCode;
private static final String DEFAULT_LOCAL_CODE = "es";
private static Map<String, Object> countries;
static {
countries = new LinkedHashMap<String, Object>();
countries.put("English", Locale.ENGLISH); // label, value
countries.put("Français", Locale.FRENCH);
countries.put("Español", new Locale("es"));
}
public Map<String, Object> getCountriesInMap() {
return countries;
}
public String getLocaleCode() {
if(localeCode == null) {
localeCode = DEFAULT_LOCAL_CODE;
}
return localeCode;
}
public void setLocaleCode(String localeCode) {
this.localeCode = localeCode;
}
public void changeLanguage() {
// loop a map to compare the locale code
for (Map.Entry<String, Object> entry : countries.entrySet()) {
if (entry.getValue().toString().equals(localeCode)) {
FacesContext.getCurrentInstance().getViewRoot().setLocale((Locale) entry.getValue());
}
}
}
}
InventoryBean.java:
package com.testapp;
import java.io.Serializable;
import java.util.Locale;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.ViewScoped;
import javax.faces.context.FacesContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
#ManagedBean(name = "inventory")
#ViewScoped
public class InventoryBean implements Serializable {
private static final long serialVersionUID = 4576404491584185639L;
Logger logger = LoggerFactory.getLogger(InventoryBean.class);
// Failing path
private static final String INVENTORY_MAIN_VIEW = "/WEB-INF/inventory";
// Working path
// private static final String INVENTORY_MAIN_VIEW = "/views/inventory";
public String findProducts() {
try {
System.err.println("In inventory backing bean");
} catch (Exception exception) {
}
return INVENTORY_MAIN_VIEW;
}
public void changeLanguage() {
FacesContext.getCurrentInstance().getViewRoot().setLocale((Locale.ENGLISH));
}
}
These are the view files:
default.xhtml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE composition PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<ui:composition xmlns="http://www.w3.org/1999/xhtml"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:p="http://primefaces.org/ui"
xmlns:ui="http://java.sun.com/jsf/facelets"
template="/WEB-INF/header.xhtml">
<ui:define name="contentBody">
<f:view locale="#{language.localeCode}">
<h:form id="contentForm">
<h:outputText value="#{msg['internationalization.test']}" />
<p:commandButton id="gettingProducts"
value="Getting the products..." action="#{inventory.findProducts}" />
</h:form>
</f:view>
</ui:define>
</ui:composition>
inventory.xhtml:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE composition PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<ui:composition xmlns="http://www.w3.org/1999/xhtml"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:p="http://primefaces.org/ui"
xmlns:ui="http://java.sun.com/jsf/facelets"
template="/WEB-INF/header.xhtml">
<ui:define name="contentBody">
<f:view locale="#{language.localeCode}">
<h:form id="contentForm">
<h:outputText value="#{msg['internationalization.test']}" />
</h:form>
</f:view>
</ui:define>
</ui:composition>
And this is the template xhtml file (header.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:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:p="http://primefaces.org/ui"
xmlns:ui="http://java.sun.com/jsf/facelets">
<f:view contentType="text/html">
<h:head>
</h:head>
<h:body>
<div id="content">
<h:form id="headerForm">
<h:panelGrid columns="2">
<p:outputLabel value="Language :" for="languages" />
<h:selectOneMenu required="true" id="languages"
value="#{language.localeCode}">
<f:selectItems value="#{language.countriesInMap}" />
<p:ajax event="change" update="#all"
listener="#{language.changeLanguage}" />
</h:selectOneMenu>
</h:panelGrid>
</h:form>
<ui:insert name="contentBody" />
</div>
</h:body>
</f:view>
</html>
What is happening?
A HTTP 404 error simply means "Page Not Found". And indeed, files inside /WEB-INF folder are not publicly accessible. Put files which are intented to be publicly accessible outside /WEB-INF folder.
Note that this has further completely nothing to do with internationalization. You'd have had exactly the same problem when not doing anything with regard to internationalization (e.g. a simple navigation).
See also:
Which XHTML files do I need to put in /WEB-INF and which not?