Erro de mapeamento

[guilhermebhte]

GRAVE: Servlet.service() for servlet [appServlet] in context with path [/extensao] threw exception [Request processing failed; nested exception is java.lang.IllegalArgumentException: org.hibernate.hql.ast.QuerySyntaxException: Professor is not mapped [ SELECT p FROM Professor p]] with root cause
org.hibernate.hql.ast.QuerySyntaxException: Professor is not mapped [ SELECT p FROM Professor p]
Classe Professor
package br.newtonpaiva.extensao.model;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
@Entity
@Table(name = "tb_professor")
public class Professor {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long cod_professor;
private Long nom_nome;
public Long getCod_professor() {
return cod_professor;
}
public void setCod_professor(Long cod_professor) {
this.cod_professor = cod_professor;
}
public Long getNom_nome() {
return nom_nome;
}
public void setNom_nome(Long nom_nome) {
this.nom_nome = nom_nome;
}
}
Classe controller
package br.newtonpaiva.extensao.controller;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import br.newtonpaiva.extensao.model.Professor;
import br.newtonpaiva.extensao.model.ProfessorRepository;
@Controller
@RequestMapping("professores")
public class ProfessorController {
@Autowired
ProfessorRepository repository;
@RequestMapping(method = RequestMethod.GET)
public String index(Model model) {
List<Professor> listaProfessores = repository.listar();
model.addAttribute("listaProfessores", listaProfessores);
return "professores";
}
}

Classe Repository
package br.newtonpaiva.extensao.model;
import java.util.List;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import org.springframework.stereotype.Repository;
@Repository
public class ProfessorRepository {
@PersistenceContext
private EntityManager manager;
/**
* Lista todos os professores
*/
@SuppressWarnings("unchecked")
public List<Professor> listar() {
return manager.createQuery("SELECT p FROM Professor p").getResultList();
}
/**
* Lista todos os professores por nome
*/
@SuppressWarnings("unchecked")
public List<Professor> listarNome(String professor) {
return manager.createQuery("SELECT p FROM Professor p WHERE p.nom_nome LIKE '%" + professor + "%' ")
.getResultList();
}
}

[TwistedSoul]

Acho que faltou mapear a classe no persistence.xml

<persistence-unit name="extensao">
	<provider>org.hibernate.ejb.HibernatePersistence</provider>
	<class>br.newtonpaiva.extensao.model.Professor</class>

 

[guilhermebhte]

Obrigado, já foi resolvido.

 

Além disto, estávamos com problema na configuração.