@Entity
@Table(name="Professeurs")
public class Professeur  implements Serializable ,Comparable<Professeur>{

.....

    @OneToOne(fetch=FetchType.EAGER)
    @JoinColumn(name="idUser",nullable=false)
    private User user;

..
}

@javax.persistence.Entity
@Table(name="USERS")
public class User implements Serializable {

    @Id
    @GeneratedValue(strategy=GenerationType.IDENTITY)
    @Column(name="user_id")
    private Long idUser;
    private String email;
    private String password;


    private boolean actived;

    @OneToMany(orphanRemoval=true)
    @JoinColumn(name="user_id",nullable=false)
    private Collection<Role> roles=new ArrayList<Role>();
}

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:s="http://www.springframework.org/schema/security"
    xsi:schemaLocation="http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-3.2.xsd
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd">


<bean id="datasource"
        class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
        <property name="url" value="jdbc:mysql://localhost:3306/ecoleiqr_base"></property>
        <property name="username" value="ecoleiqr"></property>
        <property name="password" value="43412012"></property>
    </bean>
    <bean id="persistenceUnitManager"
        class="org.springframework.orm.jpa.persistenceunit.DefaultPersistenceUnitManager">
        <property name="defaultDataSource" ref="datasource"></property>
        <property name="persistenceXmlLocations">
            <list>
                <value>classpath*:META-INF/persistence.xml</value>
            </list>
        </property>

    </bean>
    <bean id="entityManagerFactory"
        class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
        <property name="persistenceUnitManager" ref="persistenceUnitManager"></property>
        <property name="persistenceUnitName" value="UP"></property>
    </bean>
    <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
        <property name="entityManagerFactory" ref="entityManagerFactory"></property>
    </bean>
    <tx:annotation-driven transaction-manager="transactionManager" />
    <context:annotation-config></context:annotation-config>


    <bean id="dao" class="com.ecole.iqrae.dao.DaoImpl" init-method="calculeAgeAllEleve"/>
    <bean id="metier" class="com.ecole.iqrae.metier.MetierImpl">
        <property name="dao" ref="dao"></property>
        <property name="daoDashboard" ref="dao"></property>
    </bean>


  <bean id="eleveValidator" class="com.ecole.iqrae.validator.EleveValidator"/>
  <bean id="professeurValidator" class="com.ecole.iqrae.validator.ProfesseurValidator"/>
  <bean id="parentValidator" class="com.ecole.iqrae.validator.ParentValidator"/>
  <bean id="niveauValidator" class="com.ecole.iqrae.validator.NiveauValidator"/>
   <bean id="sectionValidator" class="com.ecole.iqrae.validator.SectionValidator"/>
   <bean id="matiereValidator" class="com.ecole.iqrae.validator.MatiereValidator"/>
    <bean id="imageValidator" class="com.ecole.iqrae.validator.ImageValidator"/>

 <!--   Calcul age au demarage de serveur -->
   <!-- <bean id="calculAge" class="com.ecole.iqrae.validator.CalculAge" init-method="calculeAgeAllEleve" /> -->

        <s:http>
     <s:intercept-url pattern="/admin/**" access="ROLE_ADMIN"/>
     <s:form-login login-page="/login" default-target-url="/admin/dashboard"
      authentication-failure-url="/login" />
     <s:logout logout-success-url="/login" />
   </s:http>
   <s:authentication-manager>
    <s:authentication-provider>
      <!-- <s:password-encoder hash="md5"></s:password-encoder> -->
      <s:jdbc-user-service data-source-ref="datasource"
     users-by-username-query="select email,password, actived
      from users where email=?"
      authorities-by-username-query="select u.email, r.roleName from users u, role r
      where u.user_id = r.user_id and u.email =? " />

    </s:authentication-provider>
   </s:authentication-manager>



</beans>

if(professeur.getIdProfesseur()==null){
    Role role=new Role();
    role.setRoleName(EcoleIqraeControllerConstants.constants.back.roleProfesseur);

    User user=new User();
    foundDupliquateEmail(professeur.getEmail());
    user.setEmail(professeur.getEmail());

    user.setActived(true);
    user.getRoles().add(role);


    em.persist(user);
    em.persist(role);
    professeur.setUser(user);

    em.persist(professeur);

    user.setPassword(professeur.getPrenom()+professeur.getNom()+professeur.getIdProfesseur());