Probléme ajout enregistrement dans 2 tables liées
Bonjour tout le monde
je suis entrain de developper une application jsf/hibernate . et j'ai deux tables liées : etudiant et ecole
mon probléme est le suivant lors d'ajout d'un enregistrement
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javax.servlet.ServletException: /index.jsp(50,8) '#{etudiant.ecole.idEcole}' Target Unreachable, 'ecole' returned null
javax.faces.webapp.FacesServlet.service(FacesServlet.java:256)
cause mère
org.apache.jasper.el.JspPropertyNotFoundException: /index.jsp(50,8) '#{etudiant.ecole.idEcole}' Target Unreachable, 'ecole' returned null
org.apache.jasper.el.JspValueExpression.getType(JspValueExpression.java:61)
com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getConvertedValue(HtmlBasicInputRenderer.java:81)
javax.faces.component.UIInput.getConvertedValue(UIInput.java:934)
javax.faces.component.UIInput.validate(UIInput.java:860)
javax.faces.component.UIInput.executeValidate(UIInput.java:1065)
javax.faces.component.UIInput.processValidators(UIInput.java:666)
javax.faces.component.UIForm.processValidators(UIForm.java:229)
javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1030)
javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:662)
com.sun.faces.lifecycle.ProcessValidationsPhase.execute(ProcessValidationsPhase.java:100)
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) |
code EtudiantBean.java
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package beans;
import mapping.Ecole;
import mapping.Etudiant;
import org.hibernate.Session;
import org.hibernate.Transaction;
public class EtudiantBean {
private String id;
private String nom;
private String prenom;
private String f_id_ecole;
private Ecole ecole;
public String getId() {
return id;
}
public void setId(String 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;
}
public String getF_id_ecole() {
return f_id_ecole;
}
public void setF_id_ecole(String f_id_ecole) {
this.f_id_ecole = f_id_ecole;
}
public Ecole getEcole() {
return ecole;
}
public void setEcole(Ecole ecole) {
this.ecole = ecole;
}
public String inserer()
{
Session session=mapping.HibernateSessionFactory.getSession();
org.hibernate.Query query = session.createQuery("from Ecole as user where user.idEcole='"+f_id_ecole+"'");
ecole = (Ecole)query.list().get(0);
Transaction tx;
tx=session.beginTransaction();
Etudiant V=new Etudiant();
V.setId(id);
V.setNom(nom);
V.setPrenom(prenom);
V.setEcole(ecole);
session.save(V);
tx.commit();
return "ok";
}
} |
page index.jsp
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<%@ page language="java" pageEncoding="ISO-8859-1"%>
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h" %>
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSF 'index.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<f:view>
<center>
<h:form id="update">
<h2>Pour ajouter un étudiant</h2>
<table>
<tr>
<td><h:outputText value="L'identifiant : " /></td>
<td><h:inputText value="#{etudiant.id}" /></td>
</tr>
<tr>
<td> <h:outputText value=" Nom : " /></td>
<td> <h:inputText value="#{etudiant.nom}" /></td>
</tr>
<tr>
<td> <h:outputText value="Prénom: " /></td>
<td> <h:inputText value="#{etudiant.prenom}" /></td>
</tr>
<tr>
<td><h:outputText value=" Ecole : " /></td>
<td><h:inputText value="#{etudiant.ecole.idEcole}" /></td>
</tr>
</table>
<h:commandButton value="Ajouter" action="#{etudiant.inserer}" />
</h:form>
</center>
</f:view>
</body>
</html> |
aidez moi svp
