Hibernate and MySQL configuration

Question

I have spent a few hours trying to set up my first Hibernate application and it still doesn't work.

I have WAMP Server with my MySQL Data Base called "hibernatetest". I have Project in Eclipse, which contains Hibernate library, and mysql-connector-java-5.1.18-bin.jar. I have also this classes:

HibernateUtil.java:

import org.hibernate.SessionFactory;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
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(
                new StandardServiceRegistryBuilder().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;
    }

}

test.java (contains main):

import org.hibernate.Session;

import templates.Album;

public class test {
    public static void main(String[] args){
        Album i = new Album();
        i.setID(1);
        i.setArtist("Iron Maiden");
        i.setTitle("The Book of Souls");
        i.setLabel("Warner Music");

        Session session = HibernateUtil.getSessionFactory().getCurrentSession();
        session.beginTransaction();

        session.save(i);

        session.getTransaction().commit();
        session.close();
        System.out.println("Saved");
    }
}

Album.java:

package templates;

public class Album {
    private int ID;
    private String title;
    private String artist;
    private String label;

    public Album(){

    }

    public int getID() {
        return ID;
    }

    public void setID(int iD) {
        ID = iD;
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public String getArtist() {
        return artist;
    }

    public void setArtist(String artist) {
        this.artist = artist;
    }

    public String getLabel() {
        return label;
    }

    public void setLabel(String label) {
        this.label = label;
    }

}

Album.hbm.xml: link

Hibernate.cfg.xml: link

StackTrace:

wrz 15, 2015 10:04:47 PM org.hibernate.Version logVersion
INFO: HHH000412: Hibernate Core {5.0.1.Final}
wrz 15, 2015 10:04:47 PM org.hibernate.cfg.Environment <clinit>
INFO: HHH000206: hibernate.properties not found
wrz 15, 2015 10:04:47 PM org.hibernate.cfg.Environment buildBytecodeProvider
INFO: HHH000021: Bytecode provider name : javassist
wrz 15, 2015 10:04:47 PM org.hibernate.boot.jaxb.internal.stax.LocalXmlResourceResolver resolveEntity
WARN: HHH90000012: Recognized obsolete hibernate namespace http://hibernate.sourceforge.net/hibernate-configuration. Use namespace http://www.hibernate.org/dtd/hibernate-configuration instead.  Support for obsolete DTD/XSD namespaces may be removed at any time.
wrz 15, 2015 10:04:48 PM org.hibernate.annotations.common.reflection.java.JavaReflectionManager <clinit>
INFO: HCANN000001: Hibernate Commons Annotations {5.0.0.Final}
wrz 15, 2015 10:04:49 PM org.hibernate.engine.jdbc.connections.internal.ConnectionProviderInitiator initiateService
WARN: HHH000181: No appropriate connection provider encountered, assuming application will be supplying connections
wrz 15, 2015 10:04:49 PM org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator initiateService
WARN: HHH000342: Could not obtain connection to query metadata : The application must supply JDBC connections
Initial SessionFactory creation failed.org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]
Exception in thread "main" java.lang.ExceptionInInitializerError
    at HibernateUtil.buildSessionFactory(HibernateUtil.java:18)
    at HibernateUtil.<clinit>(HibernateUtil.java:7)
    at test.main(test.java:13)
Caused by: org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:244)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:208)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:189)
    at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:51)
    at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:94)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:217)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:189)
    at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.handleTypes(MetadataBuildingProcess.java:352)
    at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:111)
    at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.build(MetadataBuildingProcess.java:83)
    at org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:418)
    at org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:87)
    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:692)
    at HibernateUtil.buildSessionFactory(HibernateUtil.java:12)
    ... 2 more
Caused by: org.hibernate.HibernateException: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set
    at org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl.determineDialect(DialectFactoryImpl.java:100)
    at org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl.buildDialect(DialectFactoryImpl.java:54)
    at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:137)
    at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:35)
    at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:88)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:234)
    ... 15 more

What am I doing wrong?

Try setting the dialect to MySQL dialect. – Daniel Jipa Sep 15 '15 at 21:38 — Daniel Jipa, Sep 15 '15 at 21:38

score 8 · Answer 1 · answered Sep 15 '15 at 22:14

8

As the error says, you need to specify the dialect in your hibernate.cfg file.

<property name="dialect">org.hibernate.dialect.MySQLDialect</property>

answered Sep 15 '15 at 22:14

Prerak Tiwari

3,436
4
34
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score 3 · Accepted Answer · answered Feb 28 '16 at 11:59

3

I had the same problem . just add your port number after localhost .in my case it is localhost:3306

<property name="hibernate.connection.url">jdbc:mysql://localhost:3306/your_db</property>

answered Feb 28 '16 at 11:59

Antony

68
1
7

score 0 · Answer 3 · edited Dec 24 '15 at 08:08

I noticed some things that may be causing the trouble:

1) In your hibernate.cfg.xml you are not specifying the password for your connection. You can do so by adding the <property name="connection.password">your_Pass_here</property> property (or did you ommit it for privacy reasons?)

2) as @Prerak Tiwari mentioned, you are not specifying the Dialect. Do so as he mentioned with the <property name="dialect">org.hibernate.dialect.MySQLDialect</property> property

3) I notice that the name of you properties is different as the ones most people use. Instead of adding ...name="hibernate.connection.driver_class"... ommit the hibernate. part, so it should look like this:

<session-factory>
    <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
    <property name="connection.url">jdbc:mysql://localhost/hibernatetest</property>
    <property name="connection.username">root</property>
    Your password property here...
    <property name="dialect">org.hibernate.dialect.MySQLDialect</property>

    <mapping resource="/templates/Album.hbm.xml"/>
</session-factory>

Hope some of this works for you :)

Thank You Very Much. Im actually work with JPA Hibernate Entity, and for me it is very fresh. :) — G.Spansky, Oct 09 '15 at 23:44
Password field is empty because my root MySQL user doesn't have password. Second and third point may be the problem. I'll try to change it as you mentioned. — G.Spansky, Oct 09 '15 at 23:46

score 0 · Answer 4 · answered Dec 17 '15 at 16:16

This is how I fixed my error.

My environment is same as yours Hibernate 5+, Mysql & WAMP Server

Make sure you include jta jar which is included at this location \hibernate-release-5.0.5.Final\lib\osgi

You should add new user and grant all privileges. And the HOST should be localhost

And your hibernate.cfg.xml should look like this

Thats how it worked for me. I figured I had to give localhost and NOT %

score 0 · Answer 5 · answered Apr 28 '16 at 10:02

0

Check for passwor is correct or not in hibernate.cfg.xml

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

answered Apr 28 '16 at 10:02

KhAn SaAb

5,248
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Hibernate and MySQL configuration

5 Answers5