Erro ao tentar inserir dado no banco... com JPA

Assuntos Gerais
#1

Pessoal, nao tenho ideia do que possa estar acontecendo, ja vi outros topicos aqui mais nada resolvel

Erro no console:

log4j:WARN No appenders could be found for logger (org.hibernate.cfg.annotations.Version).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
Exception in thread “main” java.lang.IllegalArgumentException: Unknown entity: br.com.iw.prefeitura.modelo.Terreno
at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:671)
at br.com.iw.prefeitura.testes.testeInsereTerreno.main(testeInsereTerreno.java:20)

Meu persistence.xml


<persistence xmlns="http://java.sun.com/xml/ns/persistence"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
	version="2.0">

	<persistence-unit name="cimi">
		<provider>org.hibernate.ejb.hibernatePersistence</provider>
		<class>br.com.iw.prefeitura.modelo.Terreno</class>
		
		
		<properties>
			<property name="hibernate.dialect" value="org.hibernate.dialect.MySQLInnoDBDialect"/>
			<property name="hibernate.hbm2ddl.auto" value="update"/>
			<property name="hibernate.show_sql" value="true"/>
			<property name="hibernate.format_sql" value="true"/>
			
			<property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver"/>
			<property name="javax.persistence.jdbc.url" value="jdbc:mysql://localhost/prefeitura"/>
			<property name="javax.persistence.jdbc.user" value="root"/>
			<property name="javax.persistence.jdbc.password" value="root"/>
		</properties>


	</persistence-unit>

</persistence>

Minha classe

[code]
package br.com.iw.prefeitura.modelo;

import javax.persistence.GeneratedValue;
import javax.persistence.Id;

import org.hibernate.annotations.Entity;

@Entity
public class Terreno {

@Id @GeneratedValue
private int id;
private String benfeitoria;


public int getId() {
	return id;
}
public void setId(int id) {
	this.id = id;
}
public String getBenfeitoria() {
	return benfeitoria;
}
public void setBenfeitoria(String benfeitoria) {
	this.benfeitoria = benfeitoria;
}

}[/code]

meu Teste

package br.com.iw.prefeitura.testes;

import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;

import br.com.iw.prefeitura.modelo.Terreno;

public class testeInsereTerreno {
	
	public static void main(String[] args) {
		
		EntityManagerFactory factory = Persistence.createEntityManagerFactory("cimi");
		EntityManager entityManager = factory.createEntityManager();
		
		Terreno terreno = new Terreno();
		terreno.setBenfeitoria("Muro e calçada");
		
		entityManager.getTransaction().begin();
		entityManager.persist(terreno);
		entityManager.getTransaction().commit();
		entityManager.close();
		
	}

}

e nao vai… era para fucionar… :frowning:

#2

Ta faltando implementar serializable na entity, falta tambem a anotação da tabela.

package br.com.iw.prefeitura.modelo;

import javax.persistence.GeneratedValue;
import javax.persistence.Id;

import org.hibernate.annotations.Entity;

@Entity
@Table(name="nome_da_tabela")
public class Terreno implements java.io.Serializable {
	
	@Id @GeneratedValue
	private int id;
	private String benfeitoria;
	
	
	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}
	public String getBenfeitoria() {
		return benfeitoria;
	}
	public void setBenfeitoria(String benfeitoria) {
		this.benfeitoria = benfeitoria;
	}
	
}
#3