How / When to Close Hibernate Session?

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How / When to Close Hibernate Session?

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#1 by (3 votes)

5

I have an error after closing Hibernate Session

public String listarTodosClientes() {
    session.getTransaction().begin();
    List<Cliente> lista = session.createCriteria(Cliente.class).list();
    session.close();
    return lista.toString();
}

After session.close (), the toString () method generates an Exception. But if I remove the session.close (). The code works. And now I can leave the session open?

p.s: return a string was just an example. could be returning some item from the list.

java hibernate

asked by anonymous 13.11.2014 / 13:36

1 answer

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score 3 · Answer 1

RESOLVED.

Solution!

public String listarTodosClientes() {
    session.getTransaction().begin();
    List<Cliente> lista = session.createCriteria(Cliente.class).list();
    String retorno = lista.toString();
    session.close();
    return retorno;
}