champs inputtext renvoie rien

bonjour j'ai 2 champs input qui doivent contenir des dates(debut et fin).
je souhaite obliger l'entrée d'une valeur dans le champs debut donc la pas de problème mais je n'oblige pas l'entrée de valeur dans le champs fin, ce qui fait que le champs renvoyé peut ne rien contenir. Cela pose un problème car ce champs est lié à un objet GregorianCalendar de mon bean et donc quand je soumet ma page il m'affiche ce message d'erreur
--> Error setting property 'time' in bean of type java.util.GregorianCalendar: java.lang.NullPointerException

Que dois-je faire pour permettre le passage d'un champs vide à une propriété de mon bean???merci

Bonjour,

Pourrais tu nous montrer ton code Java ainsi que JSF ?

Merci

le code java

Code:

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/**
 * 
 */
package pagecode;
 
import com.ibm.etools.webservice.context.Context;
import com.ibm.faces.component.html.HtmlScriptCollector;
 
import javax.faces.application.FacesMessage;
import javax.faces.component.html.HtmlForm;
import javax.faces.component.html.HtmlInputText;
import controller.CtrlApplication;
import javax.faces.event.ValueChangeEvent;
import javax.faces.context.FacesContext;
import java.lang.Object;
import java.util.Date;
import java.util.GregorianCalendar;
import javax.faces.component.UIComponent;
import javax.faces.component.UIInput;
import javax.faces.component.html.HtmlMessage;
import com.ibm.faces.component.html.HtmlCommandExButton;
import javax.servlet.http.*;
 
/**
 * @author csicilia
 *
 */
public class NewRecord extends PageCodeBase {
 
    protected HtmlScriptCollector scriptCollector1;
    protected HtmlForm form1;
    protected HtmlInputText app_id1;
    protected CtrlApplication ctrlApps;
    protected HtmlMessage message1;
    protected HtmlInputText app_code1;
    protected HtmlInputText app_lib1;
    protected HtmlInputText app_strdate1;
    protected HtmlInputText app_enddate1;
    protected HtmlCommandExButton button1;
    protected HtmlCommandExButton button2;
    protected HtmlScriptCollector getScriptCollector1() {
        if (scriptCollector1 == null) {
            scriptCollector1 = (HtmlScriptCollector) findComponentInRoot("scriptCollector1");
        }
        return scriptCollector1;
    }
 
    protected HtmlForm getForm1() {
        if (form1 == null) {
            form1 = (HtmlForm) findComponentInRoot("form1");
        }
        return form1;
    }
 
    protected HtmlInputText getApp_id1() {
        if (app_id1 == null) {
            app_id1 = (HtmlInputText) findComponentInRoot("app_id1");
        }
        return app_id1;
    }
 
    public String doButton2Action() {
        // Entrez le code Java qui s'exécute lorsque le composant est cliqué
 
        // TODO: Renvoyez la sortie qui correspond à une règle de navigation
 
        return "retour";
    }
 
    public String doButton1Action() {
        // Entrez le code Java qui s'exécute lorsque le composant est cliqué
 
        getCtrlApps().insertRecord();
        return "retour";}
 
 
    //}
 
    /** 
     * @managed-bean true
     */
    protected CtrlApplication getCtrlApps() {
        if (ctrlApps == null) {
            ctrlApps = (CtrlApplication) getManagedBean("ctrlApps");
        }
        return ctrlApps;
    }
 
    /** 
     * @managed-bean true
     */
    protected void setCtrlApps(CtrlApplication ctrlApps) {
        this.ctrlApps = ctrlApps;
    }
 
    public void valideId(){
        //getCtrlApps().validateid(app_id1);
 
    }
 
    protected HtmlMessage getMessage1() {
        if (message1 == null) {
            message1 = (HtmlMessage) findComponentInRoot("message1");
        }
        return message1;
    }
 
    protected HtmlInputText getApp_code1() {
        if (app_code1 == null) {
            app_code1 = (HtmlInputText) findComponentInRoot("app_code1");
        }
        return app_code1;
    }
 
    protected HtmlInputText getApp_lib1() {
        if (app_lib1 == null) {
            app_lib1 = (HtmlInputText) findComponentInRoot("app_lib1");
        }
        return app_lib1;
    }
 
    protected HtmlInputText getApp_strdate1() {
        if (app_strdate1 == null) {
            app_strdate1 = (HtmlInputText) findComponentInRoot("app_strdate1");
        }
        return app_strdate1;
    }
 
    protected HtmlInputText getApp_enddate1() {
        if (app_enddate1 == null) {
            app_enddate1 = (HtmlInputText) findComponentInRoot("app_enddate1");
        }
        return app_enddate1;
    }
 
    protected HtmlCommandExButton getButton1() {
        if (button1 == null) {
            button1 = (HtmlCommandExButton) findComponentInRoot("button1");
        }
        return button1;
    }
 
    protected HtmlCommandExButton getButton2() {
        if (button2 == null) {
            button2 = (HtmlCommandExButton) findComponentInRoot("button2");
        }
        return button2;
    }
    public boolean verifdate(){
        GregorianCalendar a =new GregorianCalendar();
        GregorianCalendar b =new GregorianCalendar();
        a.setTime((Date)getCtrlApps().getApplication().getApp_strdate().getTime());
        b.setTime((Date)getCtrlApps().getApplication().getApp_enddate().getTime());
        if(a.getTime().before(b.getTime()))
                return true;
        return false;
 
    }
 
    public void handleApp_enddate1Validate(FacesContext facescontext,
            UIComponent component, Object object)
            throws javax.faces.validator.ValidatorException {
        // Tapez ici le code Java servant à la validation
 
        // void validate(FacesContext facescontext, UIComponent component, Object object) throws ValidatorException
        if(object!=null){
        FacesMessage msg= new FacesMessage("Erreur!!la date de fin est inférieure à la date de début");
        GregorianCalendar debut =new GregorianCalendar();
        debut.setTime((Date)getApp_strdate1().getValue());
         GregorianCalendar fin = new GregorianCalendar();
         fin.setTime((Date) object);
 
        if(debut.after(fin)){
            facescontext.addMessage(component.getClientId(facescontext), msg);
            ((UIInput)component).setValid(false);
        }
 
        }
 
    }
 
    public void handleApp_strdate1Validate(FacesContext facescontext,
            UIComponent component, Object object)
            throws javax.faces.validator.ValidatorException {
        FacesMessage msg = new FacesMessage("Date inférieure à la date du jour!!!");
        GregorianCalendar date=new GregorianCalendar();
        GregorianCalendar date2= new GregorianCalendar();
        date.setTime((Date) object);
        if(date.getTime().before(date2.getTime())){
            facescontext.addMessage(getApp_strdate1().getClientId(facescontext), msg);
            ((UIInput)component).setValid(false);
                              }
 
 
    }
 
}

le code jsf

Code:

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<%-- jsf:pagecode language="java" location="/src/pagecode/NewRecord.java" --%><%-- /jsf:pagecode --%><%@page
    language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<%@taglib uri="http://java.sun.com/jsf/core" prefix="f"%><%@taglib
    uri="http://www.ibm.com/jsf/html_extended" prefix="hx"%><%@taglib
    uri="http://java.sun.com/jsf/html" prefix="h"%><html>
<head>
<title>NewRecord</title>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<meta name="GENERATOR"
    content="Rational Application Developer for WebSphere Software">
<link rel="stylesheet" type="text/css" title="Style"
    href="theme/stylesheet.css">
<script type="text/javascript"></script></head>
<f:view>
    <body>
    <hx:scriptCollector id="scriptCollector1">
        <h:form styleClass="form" id="form1">
            <table>
                <tbody>
                    <tr>
                        <td align="left">ID</td>
                        <td style="width: 5px">&nbsp;</td>
                        <td><h:inputText styleClass="inputText" id="app_id1"
                            value="#{ctrlApps.application.app_id}" required="true">
                             <hx:convertNumber type="number" integerOnly="true"/>
                            <f:validateLongRange minimum="1" maximum="9999"></f:validateLongRange>
                        </h:inputText><h:message styleClass="message" id="message1" for="app_id1" ></h:message></td>
                    </tr>
                    <tr>
                        <td align="left">CODE</td>
                        <td style="width: 5px">&nbsp;</td>
                        <td><h:inputText styleClass="inputText" id="app_code1"
                            value="#{ctrlApps.application.app_code}" required="true" >
                            <hx:validateConstraint regex="^[A-Z]+$" />
                            <f:validateLength maximum="1"></f:validateLength>
                        </h:inputText><h:message for="app_code1"></h:message></td>
                    </tr>
                    <tr>
                        <td align="left">LIBRAIRIE</td>
                        <td style="width: 5px">&nbsp;</td>
                        <td><h:inputText styleClass="inputText" id="app_lib1"
                            value="#{ctrlApps.application.app_lib}" required="true">
                            <hx:validateConstraint regex="^[A-Z]+$" />
                            <f:validateLength maximum="1"></f:validateLength>
                        </h:inputText><h:message for="app_lib1"></h:message></td>
                    </tr>
                    <tr>
                        <td align="left">DATE_DEBUT</td>
                        <td style="width: 5px">&nbsp;</td>
                        <td><h:inputText styleClass="inputText" id="app_strdate1"
                            value="#{ctrlApps.application.app_strdate.time}" required="true" validator="#{pc_NewRecord.handleApp_strdate1Validate}">
                            <hx:convertDateTime pattern="dd.MM.yy" />
                            <hx:validateDateTimeRange minimum="#{now}" />
                        </h:inputText><h:message for="app_strdate1"></h:message></td>
                    </tr>
                    <tr>
                        <td align="left">DATE_FIN</td>
                        <td style="width: 5px">&nbsp;</td>
                        <td><h:inputText styleClass="inputText" id="app_enddate1"
                            value="#{ctrlApps.application.app_enddate.time}" required="false"
                            validator="#{pc_NewRecord.handleApp_enddate1Validate}">
                            <hx:convertDateTime pattern="dd.MM.yy" />
                        </h:inputText><h:message for="app_enddate1"></h:message></td>
                    </tr>
                </tbody>
            </table>
            <br>
            <hx:commandExButton id="button1" styleClass="commandExButton"
                type="submit" value="Valider"
                action="#{pc_NewRecord.doButton1Action}">
            </hx:commandExButton>
            <hx:commandExButton type="submit" value="Annuler"
                styleClass="commandExButton" id="button2"
                action="#{pc_NewRecord.doButton2Action}" immediate="true"></hx:commandExButton>
            <br>
        </h:form>
    </hx:scriptCollector>
    </body>
</f:view>
</html>

voila merci

En fait ma question est que se passe t-il quand un champs qui est censé recevoir une date en entrée qui doit initialiser une propriété date de mon managed bean est retourné vide??Bien qu'on l'ai autorisé bien sur en ne cochant pas la case valeur requise..Merci

Code:

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<h:inputText styleClass="inputText" id="app_id1"
                            value="#{ctrlApps.application.app_id}" required="true">
                             <hx:convertNumber type="number" integerOnly="true"/>
                            <f:validateLongRange minimum="1" maximum="9999"></f:validateLongRange>
                        </h:inputText>

ctrlApps.application.app_id est soit de type String, soit de type Date et dans ce cas il faut ajouter un converter..

il faut tout bêtemenent je pense iniatlisalé dans tes getters ceci
Code:

1 2 3 4 5 6 7 8 9 Date getDateDebut() { if (dateDebut == null) { return new Date; }else { return dateDebut) }