Hibernate MappingNotFoundException when using annotations to map an Entity class

Question

I'm new to Hibernate. I'm trying to run a simple query to see if the given login information for a user is correct:

public boolean checkLogin(String user, String pw)
{    
    pw = Util.encrypt(pw);

    String sql = "select count(*) from User where email = :email and pw = :pw";
    Query q = HibernateUtil.getSession().createQuery(sql);

    q.setParameter("email", user);
    q.setParameter("pw", pw);

    int count  = ( (Integer)  q.iterate().next() ).intValue();

    return count > 0;
}

When I call this method, I get an exception which says User class is not mapped.

To fixed this, I created this user class:

import javax.persistence.*;

@Entity @Table(name = "user")
public class User
{
    @Id @GeneratedValue
    @Column(name = "id")
    private Long id;

    public Long getId()
    {
        return id;
    }

    public void setId(Long id)
    {
        this.id = id;
    }
}

And in my HibernateUtils.createSession I added the following line:

configuration.addClass(User.class);

However this gives me the exception:

Caused by: org.hibernate.MappingNotFoundException: resource: 
net/myProject/server/model/User.hbm.xml not found
    at org.hibernate.cfg.Configuration.addResource(Configuration.java:741)
    at org.hibernate.cfg.Configuration.addClass(Configuration.java:786)
    at net.myProject.server.util.HibernateUtil.<clinit>(HibernateUtil.java:28)

What am I doing wrong?

Answer 1

Use addAnnotatedClass instead of addClass

Configuration.addClass() indeed expects a companion hbm.xml