Exception Description: Cannot use an EntityTransaction while using JTA.

**pharaon88** · 22/12/2011, 02h07

bonjour
je débute en jEE et vraiment je me plante dés le début
en fait avant d'entamer le projet demandé,j'ai essayé d'inserer une ligne dans une base de donnée a partir d'une page jsp.

**pharaon88** · 22/12/2011, 02h08

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/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package com.ensi.bechir;
 
import java.io.Serializable;
import javax.persistence.Basic;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.persistence.Table;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;
import javax.xml.bind.annotation.XmlRootElement;
 
/**
 *
 * @author bechir
 */
@Entity
@Table(name = "client", catalog = "nettrading", schema = "")
@XmlRootElement
@NamedQueries({
    @NamedQuery(name = "Client.findAll", query = "SELECT c FROM Client c"),
    @NamedQuery(name = "Client.findById", query = "SELECT c FROM Client c WHERE c.id = :id"),
    @NamedQuery(name = "Client.findByNom", query = "SELECT c FROM Client c WHERE c.nom = :nom"),
    @NamedQuery(name = "Client.findByPrenom", query = "SELECT c FROM Client c WHERE c.prenom = :prenom")})
public class Client implements Serializable {
    private static final long serialVersionUID = 1L;
    @Id
    @Basic(optional = false)
    @NotNull
    @Column(name = "id", nullable = false)
    private Integer id;
    @Basic(optional = false)
    @NotNull
    @Size(min = 1, max = 20)
    @Column(name = "nom", nullable = false, length = 20)
    private String nom;
    @Basic(optional = false)
    @NotNull
    @Size(min = 1, max = 20)
    @Column(name = "prenom", nullable = false, length = 20)
    private String prenom;
 
    public Client() {
    }
 
    public Client(Integer id) {
        this.id = id;
    }
 
    public Client(Integer id, String nom, String prenom) {
        this.id = id;
        this.nom = nom;
        this.prenom = prenom;
    }
 
    public Integer getId() {
        return id;
    }
 
    public void setId(Integer 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;
    }
 
    @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 Client)) {
            return false;
        }
        Client other = (Client) 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 "com.ensi.bechir.Client[ id=" + id + " ]";
    }
 
}

**pharaon88** · 22/12/2011, 02h08

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/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package com.ensi.bechir;
 
import javax.ejb.Stateless;
import javax.ejb.TransactionManagement;
import javax.ejb.TransactionManagementType;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.EntityTransaction;
import javax.persistence.Persistence;
import javax.persistence.PersistenceContext;
 
/**
 *
 * @author bechir
 */
 
@TransactionManagement(TransactionManagementType.CONTAINER)
@Stateless
public class sessionbechir implements sessionbechirLocal {
 
 
 
 
 
 
    @Override
    public void creerclient(Client c) {
 
 
        em.persist(c);
 
 
    }
 
 
 
    @PersistenceContext(unitName = "bechir-ejbPU")
    private EntityManager em;
 
 
    @Override
    public void persist_1(Object object) {
 
        em.persist(object);
 
    }
 
    @Override
    public void creerclient(int id, String nom, String prenom) {
 
 
 
 
         EntityManagerFactory emf=Persistence.createEntityManagerFactory("bechir-ejbPU");
         EntityManager em1=emf.createEntityManager();
         //EntityTransaction entr = em1.getTransaction();
         em1.getTransaction().begin();
         //entr.begin();
        Client c = new Client(id,nom,prenom);
         em1.persist(c);
         em1.getTransaction().commit();
         //entr.commit();
       //em1.getTransaction().commit();
 
    }
 
   // @Override
 
 
 
 
    /*private void print(String string) {
        throw new UnsupportedOperationException("Not yet implemented");
    }*/
 
    @Override
    public void businessMethod(Client c) {
        throw new UnsupportedOperationException("Not supported yet.");
    }
 
    @Override
    public String test() {
        throw new UnsupportedOperationException("Not supported yet.");
    }
 
 
 
 
 
 
 
 
}

**pharaon88** · 22/12/2011, 02h10

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<%-- 
    Document   : index
    Created on : 20 déc. 2011, 19:31:31
    Author     : bechir
--%>
 
<%@page import="com.ensi.bechir.Client"%>
<%@page import="com.ensi.bechir.sessionbechir"%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title>JSP Page</title>
    </head>
    <body>
        <h1>Hello World!</h1>
        <%
 
        sessionbechir objs = new sessionbechir(); 
        
       //out.print(sess.test());
        objs.creerclient(50, "nom", "prenom");
       
        Client c = new Client(3,"b","l");
        try{
       
      
         
          out.print(c.getId());
          out.print(c.getNom());
          out.print(c.getPrenom());
          out.print("<br>");
          
          
         // sess.creerclient(c);
         // sess.creerclient_C(5, "nom", "prenom");
         
        }catch (Exception e)
           {out.print(e);} 
        
        %>
    </body>
</html>

**pharaon88** · 22/12/2011, 02h11

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<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
  <persistence-unit name="bechir-ejbPU" transaction-type="JTA">
    <jta-data-source>bechir</jta-data-source>
    <exclude-unlisted-classes>false</exclude-unlisted-classes>
    <properties>
    </properties>
  </persistence-unit>
  <persistence-unit name="bechir-ejbPU2" transaction-type="JTA">
    <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
    <jta-data-source>bechir</jta-data-source>
    <exclude-unlisted-classes>false</exclude-unlisted-classes>
    <properties>
      <property name="eclipselink.ddl-generation" value="create-tables"/>
    </properties>
  </persistence-unit>
</persistence>

**pharaon88** · 22/12/2011, 02h11

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/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package com.ensi.bechir;
 
import javax.ejb.Local;
 
 
/**
 *
 * @author bechir
 */
@Local
public interface sessionbechirLocal {
 
 
 
    void businessMethod(Client c);
 
    public String test();
    public void creerclient(com.ensi.bechir.Client c);
 
    public void persist_1(java.lang.Object object);
 
 
    public void creerclient(int id, String nom,String prenom);
 
 
 
 
}

Exception Description: Cannot use an EntityTransaction while using JTA.

Servlets/JSP Java

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