I begin with my case:
JSF 2.1
Tomcat 7.0.27
Netbeans as IDE
JSF and PRIMEFace (but optional)
Level JSF beginner
Level JAVA good and not god
I have done a simple JSF site to learn how to works with JSF. My question is based on Login example at this step the problem is not related about that login that is obviously insicure.
A bit of code:
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
import java.io.Serializable;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
/**
*
* #author
*/
#ManagedBean
#SessionScoped
//#RequestScoped
public class User implements Serializable {
private static final long serialVersionUID = 1L;
private final String userName = "User";
private final String userPassword = "12345";
private String name;
private String password;
private boolean isLogged=false;
public String getName() {
return name;
}
public void setName( String name ) {
this.name = name;
}
public String getPassword() {
return password;
}
public void setPassword( String password ) {
this.password = password;
}
public String login() {
if( !(userName==null || password==null)
&&
(userName.equals( name ) && userPassword.equals( password ))) {
isLogged=false;
return "main";
} else {
isLogged=true;
return "index";
}
}
public boolean getIsLogged(){
return isLogged;
}
}
The page index
<?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">
<h:head>
<title>TSAM 7.5 Login</title>
</h:head>
<h:body>
Login system
<br />
<!--<h:link outcome="welcomePrimefaces" value="Primefaces welcome page" />-->
<h:form>
User : <h:inputText value="#{user.name}" />
Password : <h:inputSecret value="#{user.password}" />
<h:commandButton action="#{user.login()}" value="Submit" />
<h:commandButton value="reset" type="reset" />
<h:commandButton value="otherpage" action="otherpage"></h:commandButton>
</h:form>
</h:body>
</html>
The main page
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.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:p="http://primefaces.org/ui">
<f:event type="preRenderView" listener="#{user.isLogged}"/>
<f:view contentType="text/html">
<h:head>
<f:facet name="first">
<meta content='text/html; charset=UTF-8' http-equiv="Content-Type"/>
<title>PrimeFaces</title>
</f:facet>
</h:head>
<h:body>
<p:layout fullPage="true">
<p:layoutUnit position="north" size="100" resizable="true" closable="true" collapsible="true">
Header
</p:layoutUnit>
<p:layoutUnit position="south" size="100" closable="true" collapsible="true">
Footer
</p:layoutUnit>
<p:layoutUnit position="west" size="175" header="Left" collapsible="true">
<p:menu>
<p:submenu label="Resources">
<p:menuitem value="Demo" url="http://www.primefaces.org/showcase-labs/ui/home.jsf" />
<p:menuitem value="Documentation" url="http://www.primefaces.org/documentation.html" />
<p:menuitem value="Forum" url="http://forum.primefaces.org/" />
<p:menuitem value="Themes" url="http://www.primefaces.org/themes.html" />
</p:submenu>
</p:menu>
</p:layoutUnit>
<p:layoutUnit position="center">
Welcome to PrimeFaces
</p:layoutUnit>
</p:layout>
</h:body>
</f:view>
</html>
First
I use action="#{user.login()}" to make navigation action is this correct or there is a better pattern?
But the real question is: How to show a message If I redirect?
I like to show a message I know the example by PrimeFace http://www.primefaces.org/showcase/ui/dialogLogin.jsf. but it doesn't redirect or show anything.
But if i use only "plain" JSW without PrimeFace, i like to put a
because it is similar to PrimeFaces so switch is simple.
I'd like to adopt a "pattern" so i can reuse it for eg when i do a serch an no data is present, or when i call "erease DB" and application say work in progress an then say OK all bank account are esreased (Only an example!! but interesting because there are 2 message).
Thanks
I try
public String login() {
if (!(userName == null || password == null)
&& (userName.equals( name ) && userPassword.equals( password ))) {
isLogged = true;
return "main";
} else {
isLogged = false;
FacesMessage facesMsg;
facesMsg = new FacesMessage( FacesMessage.SEVERITY_ERROR, "No login", "No login because username or passsword are incorrect etc" );
FacesContext fc = FacesContext.getCurrentInstance();
fc.addMessage( "loginError", facesMsg );
return "index";
}
}
And edited the page
<h:body>
Login system
<br />
<!--<h:link outcome="welcomePrimefaces" value="Primefaces welcome page" />-->
<h:form>
User : <h:inputText value="#{user.name}" />
Password : <h:inputSecret value="#{user.password}" />
<h:commandButton action="#{user.login()}" value="Submit" />
<h:commandButton value="reset" type="reset" />
<h:commandButton value="Cambio Password" action="changePassword"></h:commandButton>
</h:form>
<h:message for="" style="color:red;margin:8px;"/>
</h:body>
It works but it's not ok because it's not ok to put a string in the bean. And I need the multilanguage this string has to generated by the beans.... mmm this is not OK something i'm missing.
There's extremely a lot of noise in the question. I understand that your question ultimately boils down to:
How do I create a localized faces message in bean action method?
In that case, just get the message from the current resource bundle yourself.
As you're talking about localization, you should surely already have something like as
<resource-bundle>
<base-name>com.example.i18n.text</base-name>
<var>text</var>
</resource-bundle>
in your faces-config.xml. You could just get it in the bean as well with help of ResourceBundle which JSF itself is actually also using under the covers
Locale locale = FacesContext.getCurrentInstance().getViewRoot().getLocale();
ResourceBundle text = ResourceBundle.getBundle("com.example.i18n.text", locale);
This way you could compose your message as
String summary = text.getString("messages.no_login_summary");
String detail = text.getString("messages.no_login_detail");
new FacesMessage(FacesMessage.SEVERITY_ERROR, summary, detail);
Related
I'm trying to send parameter via URL and it fails, because I somewhat can't assign value to the bean or I can't concat value with URL string. By the way when I write color value by hand everything works, for example:
<h:button outcome="viewParams?c=red"/>
This is the page code from which I'm trying to send parameter.
<h:form>
<h:selectOneMenu value="#{viewMngr.selectedColor}">
<f:selectItems value="#{viewMngr.colors}" var="c"
itemLabel="#{c}" itemValue="#{c}" />
<f:ajax listener="#{viewMngr.valueChanged}" />
</h:selectOneMenu>
<h:button outcome="viewParams?c=#{viewMngr.selectedColor}"/>
</h:form>
This is viewManager bean code (as far as I can see bean value is set, because I'm able to print it out)
#ManagedBean
public class ViewMngr {
private ArrayList<String> colors = new ArrayList<String>();
private String selectedColor;
public ViewMngr()
{
getColors().add("red");
getColors().add("green");
getColors().add("blue");
getColors().add("gray");
getColors().add("yellow");
getColors().add("orange");
}
public ArrayList<String> getColors() {
return colors;
}
public void setColors(ArrayList<String> colors) {
this.colors = colors;
}
public String getSelectedColor() {
return selectedColor;
}
public void setSelectedColor(String selectedColor) {
System.out.println("Selected color: " + selectedColor);
this.selectedColor = selectedColor;
}
public void valueChanged() {
System.out.println("Value changed!");
}
}
Now here is the code from second page which tries to catch that parameter:
<?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:p="http://primefaces.org/ui"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:f="http://java.sun.com/jsf/core">
<f:metadata>
<f:viewParam name="c" value="#{color.color}"/>
</f:metadata>
<h:body style="background-color:#{color.color}">
<fieldset>
<h:form>
<h:outputText value="Some text!"/>
</h:form>
</fieldset>
</h:body>
</html>
And here is color bean:
#ManagedBean
public class Color {
private String color;
public String getColor() {
return color;
}
public void setColor(String color) {
if(color != null)
System.out.println(color);
this.color = color;
}
}
Being your destination page viewParams.xtml:
<h:button outcome="viewParams">
<f:param name="c" value="#{viewMngr.selectedColor}" />
</h:button>
Takes the view id and appends the params to the url.
It turned out that button needed to be rerendered because c value didn't get set. The tricky part was that viewMngr.selectedColor was set but to set parameter c, button needed to be rerendered. Here is the edited code:
<h:body>
<fieldset>
<h:form prependId="false">
<h:selectOneMenu value="#{viewMngr.selectedColor}">
<f:selectItems value="#{viewMngr.colors}" var="c"
itemLabel="#{c}" itemValue="#{c}" />
<f:ajax listener="#{viewMngr.valueChanged}" render="buttonId"/>
</h:selectOneMenu>
<h:button id="buttonId" outcome="viewParams?c=#{viewMngr.selectedColor}"/>
</h:form>
</fieldset>
</h:body>
I made following jsf page. In my Managed Bean i want evaluate the input,
but i dont get the values.
If i press my commandLink i dont get any values. when i use a commandButton it works:
<?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"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core">
<ui:composition template="../templates/common.xhtml">
<ui:define name="pageTitle">Test</ui:define>
<ui:define name="pageHeader">Test</ui:define>
<ui:define name="body">
<h:panelGroup id="messagePanel" layout="block">
<h:messages errorStyle="color: red" infoStyle="color: green"
layout="table" />
</h:panelGroup>
<h:form>
<h:outputLabel value="#{bundle.SearchAdressLabel_name}"
for="axname" />
<h:inputText id="axname"
value="#tbaxController.name}"
title="#{bundle.SearchAdressTitle_name}" />
</h:panelGrid>
<br />
<br />
<h:commandButton id="submit" value="#{bundle.SearchAdressLabel_cmdsearch}" action="#{tbaxController.prepareList}">
</h:commandButton>
<h:commandLink action="#{tbaxController.prepareList}"
value="#{bundle.SearchAdressLabel_cmdsearch}" immediate="true" />
<br />
<br />
<h:commandLink value="#{bundle.SearchAdressLabel_cmdclear}"
type="reset" />
</h:form>
</ui:define>
</ui:composition>
</html>
Here is a part of my MB:
#ManagedBean(name = "tbaxController")
#SessionScoped
public class tbaxController implements Serializable {
private static final long serialVersionUID = 1L;
private static final org.apache.log4j.Logger logger = org.apache.log4j.Logger
.getLogger(tbaxController.class);
private Tbax current;
private DataModel items = null;
#EJB
private TbaxFacade ejbFacade;
private PaginationHelper pagination;
private int selectedItemIndex;
private String name;
public tbaxController() {
}
public String getname() {
// Get the field
return searchAxart;
}
public void setname(String oname) {
// Set the field this.searchAxart
this.name = oname.trim();
}
...
public String prepareList() {
logger.info("prepareList:" + name); **//null with commandLink!
recreateModel();
return "ADList";
}
...
Why does my prepareList method doesn't get any values with a commandLink?
The immediate="true" makes jsf to step over the process validation and update model phases. It jump directly to invoke application phase. That's why you don't get any values on the model. Try removing it and see what happens.
I am new to Spring Web flow.
This is my code.
main-flow.xml
<?xml version="1.0" encoding="UTF-8"?>
<flow xmlns="http://www.springframework.org/schema/webflow"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/webflow
http://www.springframework.org/schema/webflow/spring-webflow-2.0.xsd">
<var name="hello" class="org.springframework.webflow.samples.booking.hello"/>
<view-state id="hello">
<transition on="click" to="test"></transition>
</view-state>
<action-state id="test">
<evaluate expression="hello.saytest()">
</evaluate>
<transition on="yes" to="page1" ></transition>
<transition on="no" to="page2"></transition>
</action-state>
<view-state id="page1"></view-state>
<view-state id="page2"></view-state>
</flow>
Hello.java
package org.springframework.webflow.samples.booking;
import java.io.Serializable;
public class hello implements Serializable {
String name;
/**
*
*/
#Override
public String toString() {
return "hello [name=" + name + "]";
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
private static final long serialVersionUID = 1L;
public boolean saytest() {
System.out.println(name);
String test = "new";
if (name == test) {
return true;
} else {
return false;
}
}
}
hello.xhtml
<!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:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:p="http://primefaces.org/ui"
template="/WEB-INF/layouts/standard.xhtml">
<ui:define name="notes">
<p>
Check the calendar widget and the tooltips on the credit card fields.
The form uses Ajax-based validations to redisplay server-side errors without refreshing the entire page.
The booking bean backing the form is a flow-scoped object (see <strong>booking-flow.xml</strong>).
</p>
</ui:define>
<ui:define name="content">
<h:form>
<h:outputLabel for="price">Enter the Name:</h:outputLabel>
<h:inputText id="name" value="#{hello.name}">
</h:inputText>
<p:commandButton id="click" action="click" value="click" />
</h:form>
</ui:define>
</ui:composition>
Here I am trying to get some value from hello.xhtml and try to evaluate it in main-flow.xml.
If the value which i tried is new then it have to navigate to page1 or it have to take it to page2.xhtml.Now I my case even i enter new in inputtext box it take to me to page2 only.
Can anyone help me.
Change
if (name == test)
to
if (name.equals(test))
Or, simply,
if (name.equals("new"))
See http://www.javabeginner.com/learn-java/java-string-comparison
I have a simple form that get code then display his libelle, I added a validator bean that check if the code exist.
My problem is I can't display the error message whith when the code doesn't exist.
Here is the code:
test.xhtml
<!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">
<h:head><title>Test</title>
</h:head>
<body class="bodyMain">
<h:form>
<h:panelGrid columns="3">
<h:outputText value="Code: " />
<h:inputText id="code" value="#{myBean.code}"
validator="#{myBean.validateCode}">
<f:ajax execute="#this" render="libelle" listener="#{myBean.setLibelle()}"/>
</h:inputText>
<h:message for="code" style="color:red"/>
</h:panelGrid>
<h:panelGrid id="libelle" columns="2">
<h:outputText value="Libelle: " />
<h:outputText value="#{myBean.libelle}" />
</h:panelGrid>
</h:form>
</body>
</html>
MyBean.java
#ManagedBean
#ViewScoped
public class MyBean implements java.io.Serializable{
private static final long serialVersionUID = 1L;
private String code="";
private String libelle="";
public String getCode() {
return this.code;
}
public void setCode(String code) {
this.code=code;
}
public String getLibelle() {
return this.libelle;
}
public void setLibelle(String libelle) {
this.libelle=libelle;
}
public void setLibelle() {
if (code.compareTo("1")==0)
libelle="One";
else
libelle="";
}
public void validateCode(FacesContext context, UIComponent toValidate, Object value) throws ValidatorException {
String code = (String)value;
if (code.compareTo("1") != 0) {
FacesMessage message = new FacesMessage("Code doesn't exist");
throw new ValidatorException(message);
}
}
}
Thank you for your help to resolve this problem
You're not updating the <h:message> component by the <f:ajax>. You need to give the <h:message> an id and include it in the <f:ajax render>.
<h:inputText id="code" value="#{myBean.code}" validator="#{myBean.validateCode}">
<f:ajax execute="#this" render="libelle codeMessage" listener="#{myBean.setLibelle()}"/>
</h:inputText>
<h:message id="codeMessage" for="code" style="color:red"/>
Unrelated to the concrete problem, don't initialize properties to empty strings. Let them by default null. Also, comparing objects should be done with equals() method, not with compareTo(). Finally, using a dropdown list with all available values instead of an input field would be more user friendly.
I have the following backing bean:
#ViewScoped
#ManagedBean
public class WeighFamilyBacking2 implements Serializable {
private static final long serialVersionUID = 1L;
private String[] children = new String[] { "Child1", "Child2", "Child3" };
private HashMap<String, Integer> newWeights;
public WeighFamilyBacking2() {
newWeights = new HashMap<String, Integer>();
for (String s : getChildren())
newWeights.put(s, new Integer(0));
}
public void distributeWeightsWithoutMessage(ActionEvent event) {
for (String s : newWeights.keySet()) {
newWeights.put(s, newWeights.get(s) + 1);
}
}
public void distributeWeights(ActionEvent event) {
for (String s : newWeights.keySet()) {
newWeights.put(s, newWeights.get(s) + 1);
}
FacesContext.getCurrentInstance().addMessage(null,
new FacesMessage("Succesful", "Weights redistributed."));
}
public HashMap<String, Integer> getNewWeights() {
return newWeights;
}
public List<String> getChildren() {
return Arrays.asList(children);
}
}
... And the following xhtml page:
<!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:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html">
<h:body>
<h:form>
<ui:repeat var="child" value="#{weighFamilyBacking2.children}">
<h:outputText value="#{child}" />
<h:outputText value="#{weighFamilyBacking2.newWeights[child]}" /> -
<h:outputText value="#{weighFamilyBacking2.newWeights[child]}" /> -
<h:inputText id="oz" value="#{weighFamilyBacking2.newWeights[child]}" />
<h:inputText id="lbs"
value="#{weighFamilyBacking2.newWeights[child]}" />
<br />
</ui:repeat>
<h:commandButton
actionListener="#{weighFamilyBacking2.distributeWeights}"
value="Redistribute" />
<h:commandButton
actionListener="#{weighFamilyBacking2.distributeWeightsWithoutMessage}"
value="Redistribute Without Message" />
</h:form>
</h:body>
</html>
This is a simple reproducible test case. When you click on the redistribute without message, things work as expected. When you click on the redistribute button it displays the success message but the input fields are not updated. However, the text output field is updated just one time.
I have tried using immediate=true on both buttons and that doesn't affect this. This is a very simple case, I can't understand why it doesn't work.
I have tried this with all recent versions of Mojarra including 2.1.3.
This is another <ui:repeat> anomaly. I haven't nail down the exact root cause yet so that I can check if this is already reported to the JSF guys and if necessary report it, but I can tell that it works when I replace the <ui:repeat> by a <h:dataTable>.
<h:dataTable var="child" value="#{weighFamilyBacking2.children}">
<h:column>
<h:outputText value="#{child}" />
<h:outputText value="#{weighFamilyBacking2.newWeights[child]}" /> -
<h:outputText value="#{weighFamilyBacking2.newWeights[child]}" /> -
<h:inputText id="oz" value="#{weighFamilyBacking2.newWeights[child]}" />
<h:inputText id="lbs"
value="#{weighFamilyBacking2.newWeights[child]}" />
</h:column>
</h:dataTable>
Maybe a <table> is not semantically correct for you. If this is really undesireable, you might want to check if it works without problems with Tomahawk's <t:dataList>, RichFaces' <rich:dataList>, PrimeFaces' <p:dataList>, etc each which supports rendering the children without additional markup.
Update: I reported it as issue 2157.