Hibernate Ein Assertion Fehler aufgetreten (dies kann einen Fehler in Hibernate, aber ist wahrscheinlich aufgrund der unsicheren Verwendung der Sitzung)

Question

Ich habe gerade von Hibernate 4.X) in Hibernate 5.0 geändert, änderte ich meine Konfigurationsdatei, aber ich bekomme einen seltsamen Fehler.

Ein Assertionsfehler aufgetreten (dies einen Fehler in den Ruhezustand anzeigen kann, ist aber eher aufgrund einer unsicheren Nutzung der Sitzung): org.hibernate.AssertionFailure: Tabelle x_database.User nicht

gefunden

Ich hoffe, dass Sie helfen können.

Unten können Sie meine Sitzungsdatei und meine XML-Konfigurationsdatei sehen.

<?xml version="1.0" encoding="utf-8"?> 
<!DOCTYPE hibernate-configuration SYSTEM 
     "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> 

     <!-- Connects to the localhost database. This is for development purposes only. !--> 
     <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/x_database</property> 
     <!-- Should the system flush the database before running or only update the database? !--> 
     <property name="hbm2ddl.auto"> 
      create 
     </property> 

     <property name="hibernate.connection.username"> 
      root 
     </property> 

     <property name="hibernate.connection.password"> 
      root 
     </property> 

     <mapping class="org.hva.folivora.model.user.UserEntity"></mapping> 
     <mapping class="org.hva.folivora.model.user.ParentEntity"></mapping> 
     <mapping class="org.hva.folivora.model.user.StudentEntity"></mapping> 
     <mapping class="org.hva.folivora.model.questionanswer.QuestionEntity"></mapping> 
     <mapping class="org.hva.folivora.model.global.GroupEntity"></mapping> 
     <mapping class="org.hva.folivora.model.global.ThemeEntity"></mapping> 

    </session-factory> 

</hibernate-configuration> 

Unter meiner Sitzungsfabrik.

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

    private static SessionFactory buildSessionFactory() { 
     try { 
      // Create the SessionFactory from hibernate.cfg.xml 
      StandardServiceRegistry standardRegistry = new StandardServiceRegistryBuilder().configure("hibernate.cfg.xml").build(); 
      Metadata metadata = new MetadataSources(standardRegistry).getMetadataBuilder().build(); 
      return metadata.getSessionFactoryBuilder().build(); 
     } 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; 
    } 

    public static Session getSession() { 

     return getSessionFactory().openSession(); 
    } 

    public static void main(final String[] args) throws Exception { 
     final org.hibernate.Session session = getSession(); 
     try { 
      System.out.println("querying all the managed entities..."); 
      final Map metadataMap = session.getSessionFactory().getAllClassMetadata(); 
      for (Object key : metadataMap.keySet()) { 
       final ClassMetadata classMetadata = (ClassMetadata) metadataMap.get(key); 
       final String entityName = classMetadata.getEntityName(); 
       final Query query = session.createQuery("from " + entityName); 
       System.out.println("executing: " + query.getQueryString()); 
       for (Object o : query.list()) { 
        System.out.println(" " + o); 
       } 
      } 
     } finally { 
      session.close(); 
     } 

    } 
} 

Vollständige Stacktrace unten.

   01-May-2016 18:18:08.136 SEVERE [http-nio-8079-exec-4] org.apache.catalina.core.StandardWrapperValve.invoke Servlet.service() for servlet [IJBurg API/BACKEND] in context with path [] threw exception [org.glassfish.jersey.server.ContainerException: java.lang.ExceptionInInitializerError] with root cause 
org.hibernate.AssertionFailure: Table pad_ijburg.User not found 
    at org.hibernate.persister.entity.AbstractEntityPersister.getTableId(AbstractEntityPersister.java:5139) 
    at org.hibernate.persister.entity.JoinedSubclassEntityPersister.<init>(JoinedSubclassEntityPersister.java:433) 
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) 
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) 
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 
    at java.lang.reflect.Constructor.newInstance(Constructor.java:422) 
    at org.hibernate.persister.internal.PersisterFactoryImpl.createEntityPersister(PersisterFactoryImpl.java:96) 
    at org.hibernate.persister.internal.PersisterFactoryImpl.createEntityPersister(PersisterFactoryImpl.java:77) 
    at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:344) 
    at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:465) 
    at org.hva.folivora.Database.buildSessionFactory(Database.java:26) 
    at org.hva.folivora.Database.<clinit>(Database.java:19) 
    at org.hva.folivora.MyResource.getIt(MyResource.java:39) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at java.lang.reflect.Method.invoke(Method.java:497) 
    at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81) 
    at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:144) 
    at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:161) 
    at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$TypeOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:205) 
    at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:99) 
    at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:389) 
    at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:347) 
    at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:102) 
    at org.glassfish.jersey.server.ServerRuntime$2.run(ServerRuntime.java:317) 
    at org.glassfish.jersey.internal.Errors$1.call(Errors.java:271) 
    at org.glassfish.jersey.internal.Errors$1.call(Errors.java:267) 
    at org.glassfish.jersey.internal.Errors.process(Errors.java:315) 
    at org.glassfish.jersey.internal.Errors.process(Errors.java:297) 
    at org.glassfish.jersey.internal.Errors.process(Errors.java:267) 
    at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317) 
    at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:298) 
    at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1154) 
    at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:471) 
    at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:425) 
    at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:383) 
    at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:336) 
    at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:223) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) 
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) 
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199) 
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:108) 
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:522) 
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) 
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) 
    at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:620) 
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) 
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) 
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:1096) 
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) 
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:760) 
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1480) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) 
    at java.lang.Thread.run(Thread.java:745) 

Meine Session

package org.hva.folivora; 

import org.hibernate.HibernateException; 
import org.hibernate.Query; 
import org.hibernate.Session; 
import org.hibernate.SessionFactory; 
import org.hibernate.boot.Metadata; 
import org.hibernate.boot.MetadataSources; 
import org.hibernate.boot.registry.StandardServiceRegistry; 
import org.hibernate.boot.registry.StandardServiceRegistryBuilder; 
import org.hibernate.metadata.ClassMetadata; 

import java.util.Map; 

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

    private static SessionFactory buildSessionFactory() { 
     try { 
      // Create the SessionFactory from hibernate.cfg.xml 
      StandardServiceRegistry standardRegistry = new StandardServiceRegistryBuilder().configure("hibernate.cfg.xml").build(); 
      Metadata metadata = new MetadataSources(standardRegistry).getMetadataBuilder().build(); 
      return metadata.getSessionFactoryBuilder().build(); 
     } 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; 
    } 

    public static Session getSession() { 

     return getSessionFactory().openSession(); 
    } 

    public static void main(final String[] args) throws Exception { 
     final org.hibernate.Session session = getSession(); 
     try { 
      System.out.println("querying all the managed entities..."); 
      final Map metadataMap = session.getSessionFactory().getAllClassMetadata(); 
      for (Object key : metadataMap.keySet()) { 
       final ClassMetadata classMetadata = (ClassMetadata) metadataMap.get(key); 
       final String entityName = classMetadata.getEntityName(); 
       final Query query = session.createQuery("from " + entityName); 
       System.out.println("executing: " + query.getQueryString()); 
       for (Object o : query.list()) { 
        System.out.println(" " + o); 
       } 
      } 
     } finally { 
      session.close(); 
     } 

    } 
} 

package org.hva.folivora.model.user; 

import javax.jws.soap.SOAPBinding; 
import javax.persistence.*; 

@Entity 
@Table(name = "User", schema = "pad_ijburg") 
@Inheritance(strategy = InheritanceType.JOINED) 
public class UserEntity { 
    private int idUser; 
    private String email; 
    private String firstName; 
    private String lastName; 
    private String password; 
    private Boolean admin = false; 
    private Boolean teacher = false; 

    public UserEntity(){ 

    } 

    public UserEntity(String email, String firstName, String lastName, String password, Boolean admin, Boolean teacher){ 
     this.email = email; 
     this.firstName = firstName; 
     this.lastName = lastName; 
     this.password = password; 
     this.admin = admin; 
     this.teacher = teacher; 
    } 

    @Basic 
    @Column(name = "teacher") 
    public Boolean getTeacher() { 
     return teacher; 
    } 

    public void setTeacher(Boolean teacher) { 
     this.teacher = teacher; 
    } 

    @Id @GeneratedValue(strategy = GenerationType.IDENTITY) 
    @Column(name = "idUser", nullable = false, updatable = false, unique = true) 
    public int getIdUser() { 
     return idUser; 
    } 

    public void setIdUser(int idUser) { 
     this.idUser = idUser; 
    } 

    @Basic 
    @Column(name = "email", unique = true, nullable = false) 
    public String getEmail() { 
     return email; 
    } 

    public void setEmail(String email) { 
     this.email = email; 
    } 

    @Basic 
    @Column(name = "firstName") 
    public String getFirstName() { 
     return firstName; 
    } 

    public void setFirstName(String firstName) { 
     this.firstName = firstName; 
    } 

    @Basic 
    @Column(name = "lastName") 
    public String getLastName() { 
     return lastName; 
    } 

    public void setLastName(String lastName) { 
     this.lastName = lastName; 
    } 

    @Basic 
    @Column(name = "password") 
    public String getPassword() { 
     return password; 
    } 

    public void setPassword(String password) { 
     this.password = password; 
    } 

    @Basic 
    @Column(name = "admin") 
    public Boolean getAdmin() { 
     return admin; 
    } 

    public void setAdmin(Boolean admin) { 
     this.admin = admin; 
    } 

    @Override 
    public boolean equals(Object o) { 
     if (this == o) return true; 
     if (o == null || getClass() != o.getClass()) return false; 

     UserEntity that = (UserEntity) o; 

     if (idUser != that.idUser) return false; 
     if (email != null ? !email.equals(that.email) : that.email != null) return false; 
     if (firstName != null ? !firstName.equals(that.firstName) : that.firstName != null) return false; 
     if (lastName != null ? !lastName.equals(that.lastName) : that.lastName != null) return false; 
     if (password != null ? !password.equals(that.password) : that.password != null) return false; 
     if (admin != null ? !admin.equals(that.admin) : that.admin != null) return false; 

     return true; 
    } 

    @Override 
    public int hashCode() { 
     int result = idUser; 
     result = 31 * result + (email != null ? email.hashCode() : 0); 
     result = 31 * result + (firstName != null ? firstName.hashCode() : 0); 
     result = 31 * result + (lastName != null ? lastName.hashCode() : 0); 
     result = 31 * result + (password != null ? password.hashCode() : 0); 
     result = 31 * result + (admin != null ? admin.hashCode() : 0); 
     return result; 
    } 
} 

Answer 1

Downgrade auf Hibernate 4.1-FINAL und es sollte wieder funktionieren. Anscheinend hat Hibernate 5 noch viel Ärger .. (Oder sie haben die verbundene Strategie komplett entfernt) Ziemlich traurig ..

Answer 2

Erstens ist USER ein reserviertes Schlüsselwort in MySQL. Es kann ein Grund für das Problem sein. Bitte verwenden Sie mehrere Namen

@Table(name = "users", schema = "pad_ijburg") 
public class User { 

} 

Sie benötigen pad_ijburg Schema in der Datenbank haben. Und Sie müssen das Schema mit hibernate.hbm2ddl.auto=update aktualisieren oder erstellen, wenn Sie dies nicht tun.

Aktivieren Sie das nächste Mal SQL-Protokoll und Protokoll mit Hibernate Bootstrap. Hibernate bietet Informationen über SQL für die Tabellenerstellung.

Answer 3

Es scheint, dass es etwas mit der @ Vererbung zu tun hat. Wenn ich den Vererbungs-Typ entferne, funktioniert es. Ich kann immer noch nicht weiter kommen, da die Vererbung etwas ist, was ich noch brauche.