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hibernate - org.hibernate.MappingException : Unknown entity: pack1. Persoana

转载 作者:行者123 更新时间:2023-12-04 18:36:45 24 4
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我收到此错误,但我不知道我的 hbm.xml 文件有什么问题。
我使用 Eclipse Mars 和 Hibernate 5.0.2。

错误:

Nov 15, 2015 11:49:19 PM org.hibernate.Version logVersion
INFO: HHH000412: Hibernate Core {5.0.2.Final}
Nov 15, 2015 11:49:19 PM org.hibernate.cfg.Environment <clinit>
INFO: HHH000206: hibernate.properties not found
Nov 15, 2015 11:49:19 PM org.hibernate.cfg.Environment buildBytecodeProvider
INFO: HHH000021: Bytecode provider name : javassist
Nov 15, 2015 11:49:19 PM org.hibernate.annotations.common.reflection.java.JavaReflectionManager <clinit>
INFO: HCANN000001: Hibernate Commons Annotations {5.0.0.Final}
Nov 15, 2015 11:49:20 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
WARN: HHH000402: Using Hibernate built-in connection pool (not for production use!)
Nov 15, 2015 11:49:20 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH000401: using driver [com.mysql.jdbc.Driver] at URL [jdbc:mysql://localhost:3306/test]
Nov 15, 2015 11:49:20 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH000046: Connection properties: {user=root, password=****}
Nov 15, 2015 11:49:20 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH000006: Autocommit mode: false
Nov 15, 2015 11:49:20 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000115: Hibernate connection pool size: 20 (min=1)
Nov 15, 2015 11:49:20 PM org.hibernate.dialect.Dialect <init>
INFO: HHH000400: Using dialect: org.hibernate.dialect.MySQLDialect
org.hibernate.MappingException: Unknown entity: pack1.Persoana
at org.hibernate.internal.SessionFactoryImpl.getEntityPersister(SessionFactoryImpl.java:776)
at org.hibernate.internal.SessionImpl.getEntityPersister(SessionImpl.java:1451)
at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:100)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:192)
at org.hibernate.event.internal.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:38)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:177)
at org.hibernate.event.internal.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:32)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:73)
at org.hibernate.internal.SessionImpl.fireSave(SessionImpl.java:678)
at org.hibernate.internal.SessionImpl.save(SessionImpl.java:670)
at org.hibernate.internal.SessionImpl.save(SessionImpl.java:665)
at pack1.Main.insert(Main.java:74)
at pack1.Main.main(Main.java:34)
org.hibernate.MappingException: Unknown entity: pack1.Persoana
at org.hibernate.internal.SessionFactoryImpl.getEntityPersister(SessionFactoryImpl.java:776)
at org.hibernate.internal.SessionImpl.getEntityPersister(SessionImpl.java:1451)
at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:100)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:192)
at org.hibernate.event.internal.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:38)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:177)
at org.hibernate.event.internal.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:32)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:73)
at org.hibernate.internal.SessionImpl.fireSave(SessionImpl.java:678)
at org.hibernate.internal.SessionImpl.save(SessionImpl.java:670)
at org.hibernate.internal.SessionImpl.save(SessionImpl.java:665)
at pack1.Main.insert(Main.java:74)
at pack1.Main.main(Main.java:35)
org.hibernate.MappingException: Unknown entity: pack1.Persoana
at org.hibernate.internal.SessionFactoryImpl.getEntityPersister(SessionFactoryImpl.java:776)
at org.hibernate.internal.SessionImpl.getEntityPersister(SessionImpl.java:1451)
at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:100)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:192)
at org.hibernate.event.internal.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:38)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:177)
at org.hibernate.event.internal.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:32)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:73)
at org.hibernate.internal.SessionImpl.fireSave(SessionImpl.java:678)
at org.hibernate.internal.SessionImpl.save(SessionImpl.java:670)
at org.hibernate.internal.SessionImpl.save(SessionImpl.java:665)
at pack1.Main.insert(Main.java:74)
at pack1.Main.main(Main.java:36)
org.hibernate.UnknownEntityTypeException: Unable to locate persister: pack1.Persoana
at org.hibernate.internal.SessionFactoryImpl.locateEntityPersister(SessionFactoryImpl.java:792)
at org.hibernate.internal.SessionImpl.locateEntityPersister(SessionImpl.java:2641)
at org.hibernate.internal.SessionImpl.access$2500(SessionImpl.java:164)
at org.hibernate.internal.SessionImpl$IdentifierLoadAccessImpl.<init>(SessionImpl.java:2579)
at org.hibernate.internal.SessionImpl$IdentifierLoadAccessImpl.<init>(SessionImpl.java:2566)
at org.hibernate.internal.SessionImpl.byId(SessionImpl.java:1044)
at org.hibernate.internal.SessionImpl.get(SessionImpl.java:955)
at pack1.Main.update(Main.java:87)
at pack1.Main.main(Main.java:42)
org.hibernate.UnknownEntityTypeException: Unable to locate persister: pack1.Persoana
at org.hibernate.internal.SessionFactoryImpl.locateEntityPersister(SessionFactoryImpl.java:792)
at org.hibernate.internal.SessionImpl.locateEntityPersister(SessionImpl.java:2641)
at org.hibernate.internal.SessionImpl.access$2500(SessionImpl.java:164)
at org.hibernate.internal.SessionImpl$IdentifierLoadAccessImpl.<init>(SessionImpl.java:2579)
at org.hibernate.internal.SessionImpl$IdentifierLoadAccessImpl.<init>(SessionImpl.java:2566)
at org.hibernate.internal.SessionImpl.byId(SessionImpl.java:1044)
at org.hibernate.internal.SessionImpl.get(SessionImpl.java:955)
at pack1.Main.delete(Main.java:105)
at pack1.Main.main(Main.java:43)
Nov 15, 2015 11:49:21 PM org.hibernate.hql.internal.QueryTranslatorFactoryInitiator initiateService
INFO: HHH000397: Using ASTQueryTranslatorFactory
org.hibernate.hql.internal.ast.QuerySyntaxException: Persoana is not mapped [from Persoana]
at org.hibernate.hql.internal.ast.QuerySyntaxException.generateQueryException(QuerySyntaxException.java:79)
at org.hibernate.QueryException.wrapWithQueryString(QueryException.java:103)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:218)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:142)
at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:115)
at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:76)
at org.hibernate.engine.query.spi.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:150)
at org.hibernate.internal.AbstractSessionImpl.getHQLQueryPlan(AbstractSessionImpl.java:298)
at org.hibernate.internal.AbstractSessionImpl.createQuery(AbstractSessionImpl.java:236)
at org.hibernate.internal.SessionImpl.createQuery(SessionImpl.java:1825)
at pack1.Main.afisare(Main.java:53)
at pack1.Main.main(Main.java:44)
Caused by: org.hibernate.hql.internal.ast.QuerySyntaxException: Persoana is not mapped
at org.hibernate.hql.internal.ast.util.SessionFactoryHelper.requireClassPersister(SessionFactoryHelper.java:171)
at org.hibernate.hql.internal.ast.tree.FromElementFactory.addFromElement(FromElementFactory.java:91)
at org.hibernate.hql.internal.ast.tree.FromClause.addFromElement(FromClause.java:76)
at org.hibernate.hql.internal.ast.HqlSqlWalker.createFromElement(HqlSqlWalker.java:321)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromElement(HqlSqlBaseWalker.java:3678)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromElementList(HqlSqlBaseWalker.java:3567)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromClause(HqlSqlBaseWalker.java:708)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:564)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.selectStatement(HqlSqlBaseWalker.java:301)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:249)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:262)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:190)
... 9 more

主要类:
package pack1;
import java.util.List;
import java.util.Date;
import java.util.Iterator;
import org.hibernate.HibernateException;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import org.hibernate.service.ServiceRegistry;

public class Main {

private static SessionFactory factory;
private static Configuration configuration;

private static ServiceRegistry serviceRegistry;

public static void main(String[] args) {
// TODO Auto-generated method stub

try{

configuration = new Configuration().addResource("./hibernate.cfg.xml");
configuration.configure();

serviceRegistry = new StandardServiceRegistryBuilder().applySettings(configuration.getProperties()).build();
factory = configuration.buildSessionFactory(serviceRegistry);

//Configuration config = new Configuration();
//factory = config.configure().buildSessionFactory();
insert(5, "Maria", 20);
insert(6, "Ioana", 19);
insert(7, "Denisa", 14);
}
catch(Throwable ex){
System.err.println("Failed to create sessionFactory object." + ex);
throw new ExceptionInInitializerError(ex);
}
update(2,22);
delete(3);
afisare();

}

private static void afisare( ){
Session session = factory.openSession();
Transaction tx = null;
try{
tx = session.beginTransaction();
Query query= session.createQuery("from Persoana");//Hibernate Query Language (HQL)
//se poate rula SQL cu createSQLQuery(…)
List<Persoana> persoane = query.list();
for (Persoana p: persoane){
System.out.println(p);
}
tx.commit();
}catch (HibernateException e) {
if (tx!=null) tx.rollback();
e.printStackTrace();
}finally {
session.close();
}
}

private static void insert(int id, String nume, int varsta){
Session session = factory.openSession();
Transaction tx = null;
try{
tx = session.beginTransaction();
Persoana pers= new Persoana(id, nume, varsta);
session.save(pers);
tx.commit();
}catch (HibernateException e) {
if (tx!=null) tx.rollback();
e.printStackTrace();
}finally { session.close(); }
}

private static void update(Integer id, int varsta ){
Session session = factory.openSession();
Transaction tx = null;
try{
tx = session.beginTransaction();
Persoana pers= (Persoana)session.get(Persoana.class, id);
pers.setVarsta( varsta );
session.update(pers);
tx.commit();
}catch (HibernateException e) {
if (tx!=null)
tx.rollback();
e.printStackTrace();
}finally {
session.close();
}
}

private static void delete(Integer id){
Session session = factory.openSession();
Transaction tx = null;
try{
tx = session.beginTransaction();
Persoana pers= (Persoana)session.get(Persoana.class, id);
session.delete(pers);
tx.commit();
}catch (HibernateException e) {
if (tx!=null) tx.rollback();
e.printStackTrace();
}finally {
session.close();
}
}

}

这是另一个类:
package pack1;

public class Persoana {

private int id;
private String nume;
private int varsta;
public Persoana(){}
public Persoana(int id,String nume,int varsta){
this.id=id;
this.nume=nume;
this.varsta=varsta;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getNume() {
return nume;
}
public void setNume(String nume) {
this.nume = nume;
}
public int getVarsta() {
return varsta;
}
public void setVarsta(int varsta) {
this.varsta = varsta;
}
@Override
public String toString() {
return id + ", " + nume + ", " + varsta;
}

}

这是我的 hibernate.cfg.xml 文件
<?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>
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.url">jdbc:mysql://localhost:3306/test</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.connection.password">rootpass</property>
<mapping class="Persoana" resource="Persoana.hbm.xml"/>
</session-factory>
</hibernate-configuration>

这是我的 hbm.xml 文件
<!-- Generated Nov 15, 2015 2:03:44 PM by Hibernate Tools 3.5.0.Final -->
<hibernate-mapping>
<class name="pack1.Persoana" table="PERSOANA">
<id name="id" type="int">
<column name="ID" />
<generator class="assigned" />
</id>
<property name="nume" type="java.lang.String">
<column name="NUME" />
</property>
<property name="varsta" type="int">
<column name="VARSTA" />
</property>
</class>
</hibernate-mapping>

最佳答案

尝试将包名放入 hibernate-mapping :

<hibernate-mapping package="pack1">
<class name="Persoana" table="PERSOANA">

并从 class="Persoana" 中删除类定义( mapping )在 cfg.xml 中。

关于hibernate - org.hibernate.MappingException : Unknown entity: pack1. Persoana,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/33725921/

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