CRUD w Hibernate

0

Cześć, robię aplikacje w stylu CRUD, na razie staneło na "C" mam klasy wydaje mi się że połączenia też są ok ale jednak Http 500.

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;

@Entity
public class Student 
{
	@Id
	@GeneratedValue ( strategy = GenerationType.AUTO)
	@Column
	private int id;
	@Column
	private String imie;
	
	public Student ()
	{
		
	}
	
	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}
	public String getImie() {
		return imie;
	}
	public void setImie(String imie) {
		this.imie = imie;
	}
	
	
	
}

import org.hibernate.Session;
import org.hibernate.Transaction;

import com.mkyong.rest.HibernateUtil;


public class StudentDao 
{

	public void addUser(Student student) {
        Transaction trns = null;
        Session session = HibernateUtil.getSessionFactory().openSession();
        try {
            trns = session.beginTransaction();
            session.save(student);
            session.getTransaction().commit();
        } catch (RuntimeException e) {
            if (trns != null) {
                trns.rollback();
            }
            e.printStackTrace();
        } finally {
            session.flush();
            session.close();
        }
    }
}

import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;

public class HibernateUtil {
    private static final SessionFactory sessionFactory = buildSessionFactory();

    private static SessionFactory buildSessionFactory() {
        try {
            // Create the SessionFactory from hibernate.cfg.xml
            return new Configuration().configure().buildSessionFactory();
        } catch (Throwable ex) {
            // Make sure you log the exception, as it might be swallowed
            System.err.println("Initial SessionFactory creation failed." + ex);
            throw new ExceptionInInitializerError(ex);
        }
    }

    public static SessionFactory getSessionFactory() 
    {
        return sessionFactory;
    }
}
@Path("/message")
public class MessageRestService 
{
	StudentDao dao = new StudentDao();
	
	
	@GET
	@Path("/{param}")
	public Response printMessage(@PathParam("param") String msg) 
	{
		String result = "Restful example : " + msg;
		
		Student s = new Student();
		s.setImie(msg);
		dao.addUser(s);

		return Response.status(200).entity(result).build();

	}

}
<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
        "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
        "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
 
<hibernate-configuration>
    <session-factory>
 
        <!-- Connection settings -->
        <property name="hibernate.connection.driver_class">org.postgresql.Driver</property>
        <property name="hibernate.connection.url">jdbc:postgresql://localhost:5432/Student</property>
        <property name="hibernate.connection.username">postgres</property>
        <property name="hibernate.connection.password">admin</property>
 
        <!-- SQL dialect -->
        <property name="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</property>
 
        <!-- Print executed SQL to stdout -->
        <property name="show_sql">true</property>
 
        <!-- Drop and re-create all database on startup -->
        <property name="hibernate.hbm2ddl.auto">create-drop</property>
 
        <!-- Annotated entity classes -->
        <mapping class="com.mkyong.app.Student"/>
        
    </session-factory>
</hibernate-configuration>
0

Przekleiłeś to 1:1 z mkyonga? Nazwy pakietów Ci się zgadzają?

0

Tak, pakiety się zgadzają.

0

Pokaż logi i plik web.xml

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