无法解析引用本地ejb

2018-06-20 22:07:00

我在编写EJB应用程序时遇到了一个问题。我搜索了一个解决方案，但我仍然与Glassfish4在智能方面存在同样的问题：“无法解析引用[Local ejb-ref name = EJB.AdminEJB，Local 3.x interface = Interface.AdminInterface，ejb-link = null，lookup = mappedName =，jndi-name =，refType = Session]，因为在接口Interface.AdminInterface的应用程序中有[2] ejbs。“ 对于我的英语，请原谅我，我是法国人。

包界面中的AdminInterface

@Local
public interface AdminInterface {
public void creerParieur(Parieur parieur);

public void supprimerParieur (String login);

public void creerBookmaker(Bookmaker bookmaker);

public void supprimerBookmaker (String login);

public void modifParieur (Parieur parieur);

public void modifBookmaker (Bookmaker bookmaker);

public void ajouterCote(Cote cote);

public void ajouterMatch (Match match);

public List<Cote> listeCote(String log);

public List<Match> listeMatch();

public List<Parieur> listeParieur();

public List<Bookmaker> listeBookmaker();

public Parieur rechercheParieur(String id);

public Bookmaker rechercheBookmaker (String id);

public void setLogin(String login);

public String getLogin();

}

包EJB中的AdminEJB

@Stateless
public class AdminEJB implements AdminInterface{
String login;
String mdp;
@PersistenceContext(unitName = "NewPersistenceUnit")
EntityManager em;

public AdminEJB(){}

public String getLogin(){
    return login;
}

public void setLogin(String login){
    this.login=login;
}

public String getMdp(){
    return mdp;
}

public void setMdp(String mdp){
    this.mdp=mdp;
}

public void creerParieur(Parieur parieur){
    em.persist(parieur);
}

public void supprimerParieur(String login){
    Parieur parieur=new Parieur ();
    Query req=em.createQuery("select OBJECT(P) from Parieur P where P.login=:login");
    req.setParameter("login", login);
    parieur=(Parieur)req.getSingleResult();
    em.remove(parieur);
}

public void modifParieur(Parieur parieur){
    em.merge(parieur);
}

public List<Parieur> listeParieur(){
    Query req=em.createQuery("select OBJECT(P) from Parieur P");
    return req.getResultList();
}

public void creerBookmaker(Bookmaker bookmaker){
    em.persist(bookmaker);
}

public void supprimerBookmaker(String login){
    Bookmaker bookmaker;
    Query req=em.createQuery("select OBJECT(B) from Bookmaker B where B.pseudo=:login");
    req.setParameter("login", login);
    bookmaker=(Bookmaker)req.getSingleResult();
    em.remove(bookmaker);
}

public void modifBookmaker(Bookmaker bookmaker){
    em.merge(bookmaker);
}

public List<Bookmaker> listeBookmaker(){
    Query req=em.createQuery("select OBJECT(B) from Bookmaker B");
    return req.getResultList();
}

public List<Match> listeMatch(){
    Query req=em.createQuery("select OBJECT(M) from Match M");
    return req.getResultList();
}

public Bookmaker rechercheBookmaker(String id){
    return em.find(Bookmaker.class,id);
}

public Parieur rechercheParieur(String id){
    return em.find(Parieur.class,id);
}

public void ajouterCote (Cote cote){
    em.persist(cote);
}

public void ajouterMatch (Match match){
    em.persist(match);
}

public List<Cote> listeCote(String log){
    Bookmaker bookmaker = new Bookmaker();
    bookmaker = this.rechercheBookmaker(log);
    Query req = em.createQuery("select OBJECT(C) from Cote C where C.bookmaker=:bookmaker");
    req.setParameter("bookmaker", bookmaker);
    return req.getResultList();
}

}

ControlerBean包装在ManagedBean中

   @ManagedBean
  @RequestScoped
  public class ControlerBean implements Serializable{
Bookmaker bookmaker;
Pari pari;
Parieur parieur;
Match match;
Cote cote;
String nomObjetP;
String nomEnP;
String pseudoUser;
String pwdUser;

@EJB
private AdminInterface admin;

public ControlerBean(){
    bookmaker = new Bookmaker();
    parieur = new Parieur();
    cote = new Cote();
    match= new Match();
    pari= new Pari();

}

public String getNomObjetP() {
    return nomObjetP;
}

public void setNomObjetP(String nomObjetP) {
    this.nomObjetP = nomObjetP;
}

public String getNomEnP() {
    return nomEnP;
}

public void setNomEnP(String nomEnP) {
    this.nomEnP = nomEnP;
}

public Pari getPari() {
    return pari;
}

public void setPari(Pari pari){
    this.pari=pari;
}

public Bookmaker getBookmaker() {
    return bookmaker;
}

public void setBookmaker(Bookmaker bookmaker) {
    this.bookmaker = bookmaker;
}

public Parieur getParieur() {
    return parieur;
}

public void setParieur(Parieur parieur) {
    this.parieur = parieur;
}

public Cote getCote() {
    return cote;
}

public void setCote(Cote cote) {
    this.cote = cote;
}

public Match getMatch(){
    return match;
}

public void setMatch(Match match){
    this.match=match;
}

public AdminInterface getAdmin() {
    return admin;
}

public void setAdmin(AdminInterface admin) {
    this.admin = admin;
}

public String getPseudoUser() { return pseudoUser; }

public void setPseudoUser(String pseudoUser) {
    this.pseudoUser = pseudoUser;
}

public String getPwdUser() {
    return pwdUser;
}

public void setPwdUser(String pwdUser) {
    this.pwdUser = pwdUser;
}

public String addParieur(){
    parieur.setArgent(1000);
    admin.creerParieur(parieur);
    return "OK";
}

public String modifParieur(){
    admin.modifParieur(parieur);
    return "OK";
}

public String supprParieur(){
    admin.supprimerParieur(parieur.getLogin());
    return "OK";
}

public String addBookmaker(){
    admin.creerBookmaker(bookmaker);
    return "OK";
}

public String modifBookmaker(){
    admin.modifBookmaker(bookmaker);
    return "OK";
}

public String supprBookmaker(){
    admin.supprimerBookmaker(bookmaker.getPseudo());
    return "OK";
}

public List<Bookmaker> listeBookmaker(){
    return admin.listeBookmaker();
}

public List<Parieur> listeParieur(){
    return admin.listeParieur();
}

public List<Match> listeMatch(){ return admin.listeMatch(); }

public String addCote(){
    pseudoUser = admin.getLogin();
    cote.setBookmaker(admin.rechercheBookmaker(pseudoUser));
    admin.ajouterCote(cote);
    return "OK";
}

public String addMatch(){
    admin.ajouterMatch(getMatch());
    return "OK";
}

}

非常感谢您的帮助

当您有两个EJB实现相同的接口时，需要区分它们以便容器知道要注入哪个EJB。

将@Stateless注释中的name参数添加到实现相同接口的所有bean。在@EJB注释中，使用beanName参数来注入适当的会话bean实现。

@Stateless(name="AdminEJB1") 
public class AdminEJB implements AdminInterface { .... }

@EJB(beanName = "AdminEJB1") 
private AdminInterface myAdminEjb;

您也可以跳过@Stateless注释中的name参数，然后在@EJB注释中使用实现类的名称作为beanName参数。

@Stateless
public class AdminEJB implements AdminInterface { .... }

@EJB(beanName = "AdminEJB") 
private AdminInterface myAdminEjb;

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