While i create a application my page bean not saved in #FlowScoped . by default stored in Request scope here my code :
enter code here
package com.webage.beans;
import java.io.Serializable;
import javax.faces.bean.ManagedBean;
import javax.faces.flow.FlowScoped;
#ManagedBean(name="flow1")
#FlowScoped(value = "flow1")
public class Flow1Bean implements Serializable {
public String cusName;
public String city;
public String getName() {
return this.getClass().getSimpleName();
}
public String doReturnValue() {
return "return1";
}
/**
* #return the cusName
*/
public String getCusName() {
return cusName;
}
/**
* #param cusName the cusName to set
*/
public void setCusName(String cusName) {
this.cusName = cusName;
}
/**
* #return the city
*/
public String getCity() {
return city;
}
/**
* #param city the city to set
*/
public void setCity(String city) {
this.city = city;
}
}
My Xhtml file here i'm getting input from page and store it in page bean.:
<p>
<span id="param1FromFlow1">Flow bean
param1Value:<h:inputText id="input"
value="#{flow1.cusName}" /> </span>
</p>
<h:outputText value="#{null != facesContext.application.flowHandler.currentFlow}" >
</h:outputText>
<p></p>
<h:commandButton type="submit" value="Next" styleClass="commandButton"
id="button1" action="flow1a"></h:commandButton>
<p></p>
The below code return "false" in flow/flow1.xhtml file
<h:outputText value="#{null != facesContext.application.flowHandler.currentFlow}" >
</h:outputText>
Flowscope is a CDI scope. Use #Named instead of #ManagedBean.
Related
Given the component: https://www.primefaces.org/showcase/ui/input/oneMenu.xhtml
Full source for my test is at: https://github.com/dannymk/PrimefacesTest
Can't get the component to work with an Object using a converter. Not sure how to solve this one.
package org.primefaces.test;
import java.io.Serializable;
public class Player implements Serializable {
private Integer id;
private String name;
Player(Integer id, String name){
this.id = id;
this.name = name;
}
/**
* #return the id
*/
public Integer getId() {
return id;
}
/**
* #param id the id to set
*/
public void setId(Integer id) {
this.id = id;
}
/**
* #return the name
*/
public String getName() {
return name;
}
/**
* #param name the name to set
*/
public void setName(String name) {
this.name = name;
}
}
package org.primefaces.test;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
/**
*
* #author Daniel Maldonado
*/
public class PlayerService implements Serializable{
private List<Player> available = new ArrayList<>();
public PlayerService() {
available.add(new Player(1, "One"));
available.add(new Player(2, "Two"));
available.add(new Player(3, "Three"));
available.add(new Player(4, "Four"));
available.add(new Player(5, "Five"));
}
/**
* #return the available
*/
public List<Player> getAvailable() {
return available;
}
/**
* #param available the available to set
*/
public void setAvailable(List<Player> available) {
this.available = available;
}
}
package org.primefaces.test;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.convert.Converter;
import javax.faces.convert.FacesConverter;
import javax.inject.Inject;
import javax.inject.Named;
/**
*
* #author Daniel Maldonado
*/
#Named
#FacesConverter(value = "playerConverter", managed = true)
public class PlayerConverter implements Converter<Player> {
#Inject
PlayerService service;
#Override
public Player getAsObject(FacesContext context, UIComponent component, String value) {
if (value != null && value.trim().length() > 0) {
Player found = service.getAvailable().stream()
.filter(player -> player.getName().equals(value))
.findAny()
.orElse(null);
return found;
}
return null;
}
#Override
public String getAsString(FacesContext context, UIComponent component, Player o) {
if (o != null){
return o.getName();
}
return null;
}
}
package org.primefaces.test;
import java.io.Serializable;
import java.util.List;
import javax.annotation.PostConstruct;
import javax.faces.view.ViewScoped;
import javax.inject.Inject;
import javax.inject.Named;
import lombok.Data;
#Data
#Named
#ViewScoped
public class TestView implements Serializable {
private String hello;
private List<Player> available;
private Player selected;
#Inject
PlayerService service;
#PostConstruct
public void init() {
setHello("Welcome to PrimeFaces!!!");
this.available = service.getAvailable();
}
/**
* #return the available
*/
public List<Player> getAvailable() {
return available;
}
/**
* #param available the available to set
*/
public void setAvailable(List<Player> available) {
this.available = available;
}
/**
* #return the selected
*/
public Player getSelected() {
return selected;
}
/**
* #param selected the selected to set
*/
public void setSelected(Player selected) {
this.selected = selected;
}
/**
* #return the hello
*/
public String getHello() {
return hello;
}
/**
* #param hello the hello to set
*/
public void setHello(String hello) {
this.hello = hello;
}
}
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:f="http://xmlns.jcp.org/jsf/core"
xmlns:p="http://primefaces.org/ui"
xmlns:h="http://xmlns.jcp.org/jsf/html">
<h:head>
<title>PrimeFaces Test - SelectOneMenu</title>
<h:outputScript name="test.js" />
</h:head>
<h:body>
<h1>#{testView.hello}</h1>
<h:form id="frmTest">
<p:panelGrid id="playerPanel" columns="2">
<p:outputLabel value="Selected player: #{testView.selected.name}" />
<p:selectOneMenu id="playerContainer" value="#{testView.selected}" var="p" converter="playerConverter" >
<f:selectItem itemLabel="Select One" itemValue="" />
<f:selectItems value="#{testView.available}" var="actual" itemLabel="#{actual.name}" itemValue="#{actual}" />
<p:column>
#{p.name}
</p:column>
<p:ajax event="valueChange" update="playerPanel" />
</p:selectOneMenu>
</p:panelGrid>
</h:form>
</h:body>
</html>
I get errors like:
java.lang.ClassCastException: java.lang.String cannot be cast to org.primefaces.test.Player
at org.primefaces.test.PlayerConverter.getAsString(PlayerConverter.java:38)
It does not seem to matter what I change and believe me I have tried plenty of implementations of the converter and in the view using "#{palyerConverter}" instead of "playerConverter" and still can't get it to work.
Your problem is at this line:
<f:selectItem itemLabel="Select One" itemValue="" />
Currently you are passing an empty string as the itemValue, which is not expected by your converter. Either use itemValue="#{null}" or totally remove the itemValue from the no select option.
See also:
Best way to add a "nothing selected" option to a selectOneMenu in JSF
Finally got it to work with just a few changes thanks to #Jasper de Vries:
<?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://xmlns.jcp.org/jsf/core"
xmlns:p="http://primefaces.org/ui"
xmlns:h="http://xmlns.jcp.org/jsf/html">
<h:head>
<title>PrimeFaces Test - SelectOneMenu</title>
<h:outputScript name="test.js" />
</h:head>
<h:body>
<h1>#{testView.hello}</h1>
<h:form id="frmTest">
<p:panelGrid id="playerPanel" columns="2">
<p:outputLabel value="Selected player: #{testView.selected.name}" />
<p:selectOneMenu id="playerContainer" value="#{testView.selected}" var="p" converter="playerConverter">
<f:selectItems value="#{testView.available}" var="actual" itemLabel="#{actual.name}" itemValue="#{actual}" />
<p:column>
#{p.name}
</p:column>
<p:ajax event="valueChange" update="playerPanel" />
</p:selectOneMenu>
</p:panelGrid>
</h:form>
</h:body>
</html>
and specially don't forget to implement the EQUALS method in the Object that is "listed":
package org.primefaces.test;
import java.io.Serializable;
import java.util.Objects;
public class Player implements Serializable {
private Integer id;
private String name;
Player(Integer id, String name){
this.id = id;
this.name = name;
}
#Override
public boolean equals(Object obj) {
if(obj == null)
return false;
if(!(obj instanceof Player))
return false;
Player compare = (Player) obj;
return Objects.equals(compare.getId(), this.getId());
}
#Override
public int hashCode() {
int hash = 1;
return hash * 31 + this.getName().hashCode();
}
/**
* #return the id
*/
public Integer getId() {
return id;
}
/**
* #param id the id to set
*/
public void setId(Integer id) {
this.id = id;
}
/**
* #return the name
*/
public String getName() {
return name;
}
/**
* #param name the name to set
*/
public void setName(String name) {
this.name = name;
}
}
I keep getting this message when trying to run the code below. It is supposed to show the test from the document to be uploaded. This is a Java Server Faces program. Why am I getting this message:Unable to find matching navigation case with from-view-id '/upload.xhtml' for action 'vidClass2.upload' with outcome 'vidClass2.upload'
<?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>Facelet Title</title>
</h:head>
<h:body >
<h:form id="form" enctype="multipart/form-data" prependId="false">
<p><h:inputFile id="file" value="#{vidClass2.vidData}">
</h:inputFile>
</p>
<br/>
<h:commandButton id="button" value ="upload" action ="vidClass2.upload">
</h:commandButton>
<p id="textOutput">Text: #{vidClass2.vidName}</p>
</h:form>
</h:body>
</html>
import javax.faces.bean.ManagedBean;
import javax.faces.bean.RequestScoped;
import java.io.IOException;
import java.io.InputStream;
import java.util.Scanner;
import javax.servlet.http.Part;
/**
*
* #author David Jennings
*/
#ManagedBean(name = "vidClass2")
#RequestScoped
public class VidClass {
private String userName;
private String vidName;
private Part vidData;
/**
* Creates a new instance of VidClass
*/
public VidClass() {
}
/**
* #return the userName
*/
public String getUserName() {
return userName;
}
/**
* #param userName the userName to set
*/
public void setUserName(String userName) {
this.userName = userName;
}
/**
* #return the vidName
*/
public String getVidName() {
return vidName;
}
/**
* #param vidName the vidName to set
*/
public void setVidName(String vidName) {
this.vidName = vidName;
}
/**
* #return the vidData
*/
public Part getVidData() {
return vidData;
}
/**
* #param vidData the vidData to set
*/
public void setVidData(Part vidData) {
this.vidData = vidData;
}
public void upload() {
if (null != vidData) {
try {
InputStream is = vidData.getInputStream();
vidName = new Scanner(is).useDelimiter("\\A").next();
} catch (IOException ex) {
}
}
}
}
enter image description here
in case you are using JavaBeans components on yours page you should use expression #{bean.method} in action.
<h:commandButton id="button" value ="upload" action ="#{vidClass2.upload}"/>
This question already has answers here:
Identifying and solving javax.el.PropertyNotFoundException: Target Unreachable
(18 answers)
Closed 7 years ago.
I got this error below when I was running my JSF page.
javax.el.PropertyNotFoundException: Target Unreachable, 'null' returned null..
Warning: /createStaff.xhtml #33,125
value="#{staffBean.staff.firstName}": Target Unreachable, 'null'
returned null javax.el.PropertyNotFoundException: /createStaff.xhtml
#33,125 value="#{staffBean.staff.firstName}": Target Unreachable,
'null' returned null
I don't get why I will run into the error when I use value="#{staffBean.staff.firstName}". There is no problem when I use the value="#{staffBean.userName}" and value="#{staffBean.passWord}" above.
This is my createStaff.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:f="http://xmlns.jcp.org/jsf/core"
xmlns:p="http://primefaces.org/ui">
<h:head>
<title>Create Staff</title>
</h:head>
<h:body>
<f:view>
<h:form>
<p:panel id ="panel" header="Staff Creation">
<p:messages id="msgs" />
<h:panelGrid columns="3" columnClasses="label, value">
<h:outputText value="Username: *" />
<p:inputText id="username" value="#{staffBean.userName}" required="true" label="Username">
</p:inputText>
<p:message for="username" />
<h:outputLabel for="pwd1" value="Password 1: *" />
<p:password id="pwd1" value="#{staffBean.passWord}" match="pwd2" label="Password 1" required="true" feedback="true" />
<p:message for="pwd1" />
<h:outputLabel for="pwd2" value="Password 2: *" />
<p:password id="pwd2" value="#{staffBean.passWord}" label="Password 2" required="true" feedback="true" />
<p:message for="pwd2" />
<h:outputText value="First name: *" />
<p:inputText id="firstname" value="#{staffBean.staff.firstName}" required="true" label="Username">
</p:inputText>
<p:message for="firstname" />
<h:outputText value="Last name: *" />
<p:inputText id="lastname" value="#{staffBean.staff.lastName}" required="true" label="Username">
</p:inputText>
<p:message for="lastname" />
<h:outputText value="Last name: *" />
<p:selectOneRadio id="genderconsole" value="#{staffBean.staff.gender}" required="true">
<f:selectItem itemLabel="Male" itemValue="Male" />
<f:selectItem itemLabel="Female" itemValue="Female" />
</p:selectOneRadio>
<p:message for="genderconsole" />
<p:commandButton value="Create Staff"
id="ajax"
update="panel">
</p:commandButton>
</h:panelGrid>
</p:panel>
</h:form>
</f:view>
</h:body>
</html>
This is my StaffBean.java
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package managedbean;
import entities.Staff;
import java.io.IOException;
import java.io.Serializable;
import java.util.HashSet;
import java.util.Set;
import javax.ejb.EJB;
import javax.enterprise.context.SessionScoped;
import javax.faces.FacesException;
import javax.faces.application.FacesMessage;
import javax.faces.context.ExternalContext;
import javax.faces.context.FacesContext;
import javax.faces.view.ViewScoped;
import javax.inject.Named;
import sessionBean.staffSessionBeanLocal;
#Named(value = "staffBean")
#SessionScoped
//#ViewScoped
public class StaffBean implements Serializable {
#EJB
private staffSessionBeanLocal staffSession;
private String userName;
private String passWord;
private String loginStatus;
private Staff staff;
...........
////Code removed
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getPassWord() {
return passWord;
}
public void setPassWord(String passWord) {
this.passWord = passWord;
}
public String getLoginStatus() {
return loginStatus;
}
public void setLoginStatus(String loginStatus) {
this.loginStatus = loginStatus;
}
public Staff getStaff() {
return staff;
}
public void setStaff(Staff staff) {
this.staff = staff;
}
}
This is my staff entity.
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package entities;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import javax.persistence.CascadeType;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.ManyToMany;
#Entity
public class Staff extends User implements Serializable {
private static final long serialVersionUID = 1L;
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
private String imageURL;
#ManyToMany(cascade = {CascadeType.ALL}, fetch = FetchType.EAGER)
private List<Roles> roles = new ArrayList<Roles>();
#Override
public Long getId() {
return id;
}
#Override
public void setId(Long id) {
this.id = id;
}
#Override
public int hashCode() {
int hash = 0;
hash += (id != null ? id.hashCode() : 0);
return hash;
}
#Override
public boolean equals(Object object) {
// TODO: Warning - this method won't work in the case the id fields are not set
if (!(object instanceof Staff)) {
return false;
}
Staff other = (Staff) object;
if ((this.id == null && other.id != null) || (this.id != null && !this.id.equals(other.id))) {
return false;
}
return true;
}
#Override
public String toString() {
return "entities.Staff[ id=" + id + " ]";
}
public String getImageURL() {
return imageURL;
}
public void setImageURL(String imageURL) {
this.imageURL = imageURL;
}
public List<Roles> getRoles() {
return roles;
}
public void setRoles(List<Roles> roles) {
this.roles = roles;
}
}
This is my User class which Staff class extends from.
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package entities;
import java.io.Serializable;
import java.sql.Timestamp;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.MappedSuperclass;
#MappedSuperclass
public class User implements Serializable {
private static final long serialVersionUID = 1L;
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
private String password;
private Timestamp joinDate;
private String userType;
private String gender;
private String email;
private String contactNo;
private String firstName;
private String lastName;
private Timestamp dOB;
private String address;
private String accountStatus;
private int numOfFailLogin;
private String maritalStatus;
private String activationCode;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
#Override
public int hashCode() {
int hash = 0;
hash += (id != null ? id.hashCode() : 0);
return hash;
}
#Override
public boolean equals(Object object) {
// TODO: Warning - this method won't work in the case the id fields are not set
if (!(object instanceof User)) {
return false;
}
User other = (User) object;
if ((this.id == null && other.id != null) || (this.id != null && !this.id.equals(other.id))) {
return false;
}
return true;
}
#Override
public String toString() {
return "entities.User[ id=" + id + " ]";
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public Timestamp getJoinDate() {
return joinDate;
}
public void setJoinDate(Timestamp joinDate) {
this.joinDate = joinDate;
}
public String getUserType() {
return userType;
}
public void setUserType(String userType) {
this.userType = userType;
}
public String getGender() {
return gender;
}
public void setGender(String gender) {
this.gender = gender;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getContactNo() {
return contactNo;
}
public void setContactNo(String contactNo) {
this.contactNo = contactNo;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public Timestamp getdOB() {
return dOB;
}
public void setdOB(Timestamp dOB) {
this.dOB = dOB;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public String getAccountStatus() {
return accountStatus;
}
public void setAccountStatus(String accountStatus) {
this.accountStatus = accountStatus;
}
public String getMaritalStatus() {
return maritalStatus;
}
public void setMaritalStatus(String maritalStatus) {
this.maritalStatus = maritalStatus;
}
public int getNumOfFailLogin() {
return numOfFailLogin;
}
public void setNumOfFailLogin(int numOfFailLogin) {
this.numOfFailLogin = numOfFailLogin;
}
public String getActivationCode() {
return activationCode;
}
public void setActivationCode(String activationCode) {
this.activationCode = activationCode;
}
}
You have no property firstName in your entity staff
UPDATE:
Looks like your staffobject is null add:
#PostConstruct
public void init() {
staff = new Stuff();
}
The error suggests that when the "firstName" is being accessed, it cannot be reached. So the "Staff" has not been constructed yet.
Add a method to your managed bean, this will resolve the issue.
#PostConstruct
public void init() {
staff= new Staff ();
}
For better understanding of why you should do it that way and not
Staff staff = new Staff();
JSF - what is the difference between #PostConstruct and direct method call from constructor?
I have a Java Dynamic Web Module project (version 2.5) with RichFaces, Spring Web Flow and Hibernate. The project is deployed in Apache Tomcat (6.0.20 in server, 6.0.37 and 7.0.39 in my machine, for dev purposes). I'm getting this error frequently:
Caused by: javax.el.ELException: /WEB-INF/flows/monitoring/monitor.xhtml #139,114 rendered="#{search.journeyRecord.valid}": Cannot convert valid of type class java.lang.String to class java.lang.Integer
Valid is a Transient Boolean attribute from JourneyRecord class. Its declaration is showed below:
#Transient
public boolean isValid() {
if (search != null) {
return search.getStatus() == Search.WITH_INSURANCE_COVER;
} else {
Calendar calendar = Calendar.getInstance();
calendar.add(Calendar.HOUR, -12);
return calendar.after(registrationDate);
}
}
I updated my jsf-facelets Maven Package to version 1.1.15.
Search Bean:
#Entity
public class Pesquisa implements Serializable {
...
private char status;
...
/**
* #return the status
*/
public char getStatus() {
return status;
}
/**
* #param status
* the status to set
*/
public void setStatus(char status) {
this.status = status;
}
...
}
JourneyRecord Bean:
#Entity
public class RegistroViagem implements Serializable{
...
private Date registrationDate;
...
/**
* #return the registrationDate
*/
public Date getRegistrationDate() {
return registrationDate;
}
/**
* #param registrationDate
* the registrationDate to set
*/
public void setRegistrationDate(Date registrationDate) {
this.registrationDate = registrationDate;
}
...
#Transient
public boolean isValid() { ... }
...
}
JSF:
...
<rich:column style="text-align:center;">
<f:facet name="header">Protocol Number</f:facet>
<h:outputText value="#{search.journeyRecord.journeyNumber}" rendered="#{search.journeyRecord.valid}" />
</rich:column>
...
Sorry. It was my mess, but I think the question can be useful for other people.
Here in JSF:
...
<rich:column style="text-align:center;">
<f:facet name="header">Protocol Number</f:facet>
<h:outputText value="#{search.journeyRecord.journeyNumber}" rendered="#{search.journeyRecord.valid}" />
</rich:column>
...
search.journeyRecord is a List<JourneyRecord>. The attribute type was changed by another person of the team.
As #BalusC suggested, it's a complex type. EL tries to get its contents using toString() method, and convert it to Integer afterwards. I changed search.journeyRecord to another transient attribute that returns only an element and worked.
Thanks to all that commented.
I try to bring the property of one ManagedBean (SessionScoped) (loginBean) to another (RequestScoped) ManagedBean (newsBean):
<c:set value="#{loginBean.user.nickname}" target="#{newsBean}" property="author" />
<h3>News verfassen:</h3>
<h:form>
<p:inputText label="Titel" value="#{newsBean.title}"></p:inputText>
<p:inputTextarea label="Inhalt" value="#{newsBean.description}"></p:inputTextarea>
<p:commandLink type="button" value="Absenden" action="#{newsBean.writeMsg}"></p:commandLink>
</h:form>
I thought that I can use the c:set tag like in the case I want to set a attribute "staticly".. :)
Maybe someone can help me?
Domii
----- AFTER ANSWER ------
LoginBean:
#ManagedBean
#SessionScoped
public class LoginBean {
public LoginBean() {
email = "";
pwd = "";
device = "";
user = null;
}
private String email;
private String pwd;
private User user;
private String device;
/**
* #return the user
*/
public User getUser() {
return user;
}
/**
* #param user the user to set
*/
public void setUser(User user) {
this.user = user;
}
And NewsBean:
public class NewsBean {
#ManagedProperty("#{loginBean.user.nickname}")
private String nickname;
private String title;
private String description;
/**
* Creates a new instance of NewsBean
*/
public NewsBean() {
}
And yes i also declare the getter /setter for nickname in user!
Just use #ManagedProperty.
#ManagedBean
#ViewScoped
public class NewsBean {
#ManagedProperty("#{loginBean.user.nickname}")
private String author;
// ...
}