Formulaire d'ajout :jsf

Version imprimable

Je suis en train de faire une formulaire d'ajout client:
partie métier:

Code:

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@PersistenceContext(unitName="partieEjb")
    EntityManager em;
     public Clients ajoutClients(Clients c)
    {
        em.persist(c);
        return c;
    }

la partie web

managedbens:

Code:

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package test;
 
import javax.ejb.EJB;
 
import presentation.Clients;
 
import service.GestionClientsLocal;
 
 
 
public class AccountContoller {
    @EJB
    private GestionClientsLocal customerbean;
    private Clients cl=new Clients();
    private int id;
    private String nom;
    private String prenom;
    public String docreateClients(){
        cl=customerbean.ajoutClients(cl);
        return "cl";          
    }
    public  AccountContoller (){
 
    }
    public GestionClientsLocal getCustomerbean() {
        return customerbean;
    }
    public void setCustomerbean(GestionClientsLocal customerbean) {
        this.customerbean = customerbean;
    }
    public Clients getCl() {
        return cl;
    }
    public void setCl(Clients cl) {
        this.cl = cl;
    }
    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }
    public String getNom() {
        return nom;
    }
    public void setNom(String nom) {
        this.nom = nom;
    }
    public String getPrenom() {
        return prenom;
    }
    public void setPrenom(String prenom) {
        this.prenom = prenom;
    }
 
 
}

partie jsp

Code:

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<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%>
<%@ taglib prefix="f"  uri="http://java.sun.com/jsf/core"%>
<%@ taglib prefix="h"  uri="http://java.sun.com/jsf/html"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<f:view>
<h:form>
<h:messages></h:messages>
<h:panelGrid columns="2"
columnClasses="rightAlign,leftAlign">
<h:outputText value="Identifiant:">
</h:outputText>
<h:inputText label="Identifiant"
value="#{accountContoller.id}"
required="true">
</h:inputText>
<h:outputText value="Nom:"></h:outputText>
<h:inputText label="Nom"
value="#{accountContoller.nom}"
required="true">
<f:validateLength minimum="2"
maximum="30"></f:validateLength>
</h:inputText>
<h:outputText value="Prenom:">
</h:outputText>
<h:inputText label="Prenom" value="#{accountContoller.prenom}">
<f:validateLength minimum="3"
maximum="30"></f:validateLength>
</h:inputText>
<h:panelGroup></h:panelGroup>
<h:commandButton value="Create Client"
action="#{accountContoller.docreateClients}" type="submit"></h:commandButton>
</h:panelGrid>
</h:form>
</f:view>
</body>
</html>

prbléme

Quand je fait l'exécution la formualire est affiché mais quand je clic sur le bouton "ajout"il ya une message d'erreur quii est affiché:

description Le serveur a rencontré une erreur interne () qui l'a empêché de satisfaire la requête.

Code:

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exception 
 
javax.servlet.ServletException: #{accountContoller.docreateClients}: java.lang.NullPointerException
    javax.faces.webapp.FacesServlet.service(FacesServlet.java:256)
    org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
 
 
cause mère 
 
javax.faces.FacesException: #{accountContoller.docreateClients}: java.lang.NullPointerException
    com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:107)
    javax.faces.component.UICommand.broadcast(UICommand.java:383)
    javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:447)
    javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:752)
    com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:97)
    com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251)
    com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:117)
    javax.faces.webapp.FacesServlet.service(FacesServlet.java:244)
    org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
 
 
cause mère 
 
javax.faces.el.EvaluationException: java.lang.NullPointerException
    javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:91)
    com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:91)
    javax.faces.component.UICommand.broadcast(UICommand.java:383)
    javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:447)
    javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:752)
    com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:97)
    com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251)
    com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:117)
    javax.faces.webapp.FacesServlet.service(FacesServlet.java:244)
    org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
 
 
cause mère 
 
java.lang.NullPointerException
    test.AccountContoller.docreateClients(AccountContoller.java:19)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    java.lang.reflect.Method.invoke(Method.java:585)
    org.apache.el.parser.AstValue.invoke(AstValue.java:131)
    org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:276)
    org.apache.jasper.el.JspMethodExpression.invoke(JspMethodExpression.java:68)
    javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:77)
    com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:91)
    javax.faces.component.UICommand.broadcast(UICommand.java:383)
    javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:447)
    javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:752)
    com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:97)
    com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251)
    com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:117)
    javax.faces.webapp.FacesServlet.service(FacesServlet.java:244)
    org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)

26/01/2010, 01h25
hey_them

Quel est la solution

Merci beaucoup pour votre aide:ccool: