Editer (modifier) un profil
Bonjour ,
Je developpe un projet JEE avec Netbeans 6.7 , MySQL et le framework JSF . Une page parmi celles que j'ai développée concerne la mise à jour ( ou la modifications des donnees du profil déja enregistrees ) .
Le code JSP de cette page appelée "modify" est :
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| <%--
Document : modify
Created on : 28 août 2009, 11:41:21
Author : DALI
--%>
<%@taglib prefix="f" uri="http://java.sun.com/jsf/core"%>
<%@taglib prefix="h" uri="http://java.sun.com/jsf/html"%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@taglib prefix="sql" uri="http://java.sun.com/jsp/jstl/sql"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<f:view>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
<title>JSP Page</title>
</head>
<body>
<h1><h:outputText value="Hello World!"/></h1><h1>Create a New Account</h1>
<h:form id="create">
<h:panelGrid columns="3" border="0">
First Name: <h:inputText id="firstname"
requiredMessage="*"
value="#{metier.c.firstname}"
required="true"/>
<h:message for="create:firstname" style="color: red"/>
Last Name: <h:inputText id="lastname"
requiredMessage="*"
value="#{metier.lastname}"
required="true"/>
<h:message for="create:lastname" style="color: red"/>
Mobile Phone: <h:inputText id="mobilephone"
requiredMessage="*"
value="#{metier.mobilephone}"
required="true"/>
<h:message for="create:mobilephone" style="color: red"/>
Company: <h:inputText id="company"
requiredMessage="*"
value="#{metier.company}"
required="true"/>
<h:message for="create:company" style="color: red"/>
Title: <h:inputText id="title"
requiredMessage="*"
value="#{metier.title}"
required="true"/>
<h:message for="create:title" style="color: red"/>
Department: <h:inputText id="department"
requiredMessage="*"
value="#{metier.department}"
required="true"/>
<h:message for="create:department" style="color: red"/>
Cams: <h:inputText id="cams"
requiredMessage="*"
value="#{metier.cams}"
required="true"/>
<h:message for="create:cams" style="color: red"/>
</h:panelGrid>
<h:commandButton id="submit"
value="Update"
action="#{metier.update}"/>
<h:messages style="color: red" globalOnly="true"/>
</h:form>
</body>
</html>
</f:view> |
J'ai essayé ca avec la methode "update" de ma page " metier " mais lorsque j'appelle cette page j'obtient l'erreur suivant :
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| DescriptionLe serveur a rencontré une erreur interne () qui l'a empêché de remplir cette requête.
Exception
javax.servlet.ServletException: Cible inaccessible, 'c' a renvoyé une valeur nulle
Cause racine
javax.el.PropertyNotFoundException: Cible inaccessible, 'c' a renvoyé une valeur nulle |
Ma page "metier" est la suivante :
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| /*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package metier;
import Ent.Client;
import Ent.ClientFacadeLocal;
import java.util.Date ;
import javax.ejb.EJB;
import javax.ejb.Stateless;
import java.util.Date;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.annotation.Resource;
import javax.faces.application.FacesMessage;
import javax.faces.context.ExternalContext;
import javax.faces.context.FacesContext;
import javax.persistence.EntityManager;
import javax.persistence.NoResultException;
import javax.persistence.PersistenceContext;
import javax.servlet.http.HttpSession;
import javax.transaction.UserTransaction;
import java.util.List;
import java.util.ArrayList;
import javax.faces.model.*;
import javax.persistence.Query;
import javax.faces.model.ListDataModel;
import javax.persistence.Entity;
/**
*
* @author DALI
*/
@Stateless
public class metier {
public static final String Client_SESSION_KEY = "client";
EntityManager persistance;
/** Creates a new instance of NewJSFManagedBean */
@EJB
private ClientFacadeLocal cf;
private Client c;
private String firstname;
private String lastname;
private String password;
private String retypepassword ;
private String login;
private String mobilephone;
private String company;
private String title;
private String department;
private String cams;
private int rightslevel;
private Date insertiondate;
private List<Client> mylist = new ArrayList<Client>();
private DataModel mymodel;
public metier () {}
public Client getC() {
return c;
}
public void setC(Client c) {
this.c = c;
}
public ClientFacadeLocal getCf() {
return cf;
}
public DataModel getMymodel()
{
return this.mymodel;
}
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 String getLogin() {
return login;
}
public void setLogin(String login) {
this.login = login;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getRetypepassword() {
return retypepassword;
}
public void setRetypepassword(String retypepassword) {
this.retypepassword = retypepassword;
}
public String getMobilephone() {
return mobilephone;
}
public void setMobilephone(String mobilephone) {
this.mobilephone = mobilephone;
}
public String getCompany() {
return company;
}
public void setCompany(String company) {
this.company = company;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public String getDepartment() {
return department;
}
public void setDepartment(String department) {
this.department = department;
}
public String getCams() {
return cams;
}
public void setCams(String cams) {
this.cams = cams;
}
public int getRightslevel() {
return rightslevel;
}
public void setRightslevel(int rightslevel) {
this.rightslevel = rightslevel;
}
public Date getInsertiondate() {
return insertiondate;
}
public void setInsertiondate(Date insertiondate) {
this.insertiondate = insertiondate;
}
public String createuser()
{
FacesContext context = FacesContext.getCurrentInstance();
c=cf.find(login);
if (c == null) {
if (!password.equals (retypepassword)){
FacesMessage message = new FacesMessage(FacesMessage.SEVERITY_ERROR,
"Login Failed password and retyped password don't match !",
"The password specified is not correct.");
context.addMessage(null, message);
return null;}
c= new Client();
int rightslevel =1 ;
insertiondate=new Date();
c.setFirstname(firstname);
c.setLastname(lastname);
c.setLogin(login);
c.setPassword(password);
c.setMobilephone(mobilephone);
c.setCompany(company);
c.setTitle(title);
c.setDepartment(department);
c.setCams(cams);
c.setRightslevel(rightslevel);
c.setInsertiondate(insertiondate);
cf.create(c);
return "success";
}
else
{
FacesMessage message = new FacesMessage(FacesMessage.SEVERITY_ERROR,
"Username '"
+ login
+ "' already exists! ",
"Please choose a different username.");
context.addMessage(null, message);
return null;
}
}
public String validate()
{
FacesContext context = FacesContext.getCurrentInstance();
c=cf.find(login);
if (c != null) {
if (!c.getPassword().equals(password)) {
FacesMessage message = new FacesMessage(FacesMessage.SEVERITY_ERROR,
"Login Failed!The password specified is not correct.",
"The password specified is not correct.");
context.addMessage(null, message);
return null;
}
context.getExternalContext().getSessionMap().put(Client_SESSION_KEY, cf);
return "validate";}
else {
FacesMessage message = new FacesMessage(FacesMessage.SEVERITY_ERROR,
"Login Failed!Username " +login +" does not exist.",
"Username '"
+ login
+
"' does not exist.");
context.addMessage(null, message);
return null;
}
}
public String create()
{
return "create";
}
public String modify()
{
return "modify";
}
public String update()
{
c=cf.find(login);
c.setFirstname(firstname);
c.setLastname(lastname);
c.setMobilephone(mobilephone);
c.setCompany(company);
c.setTitle(title);
c.setDepartment(department);
c.setCams(cams);
cf.edit(c);
return "updated";
}
public String remove()
{
return "removed";
}
public String logout() {
HttpSession session = (HttpSession)
FacesContext.getCurrentInstance().getExternalContext().getSession(false);
if (session != null) {
session.invalidate();
}
return "logout";
}
} |
Quelqu'un a une idee ?
Merci bien .
