How to fix error with my first Hibernate project?

Question

I have been tried to make my first Hibernate project. I added following libraries into my project:

antlr-2.7.7 commons-collections-3.2.1 dom4j-1.6.1 hibernate-commons-annotations-4.0.1.Final hibernate-core-4.1.0.Final hibernate-jpa-2.0-api-1.0.1.Final javassist-3.15.0-GA jboss-logging-3.1.0.CR2 jboss-transaction-api_1.1_spec-1.0.0.Final mysql-connector-java-5.1.18-bin

hibernate.cfg.xml:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD//EN"
    "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
    <property name="hibernate.connection.url">jdbc:mysql://localhost/test</property>
    <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>

    <property name="hibernate.connection.username">root</property>
    <property name="hibernate.connection.password"></property>
    <property name="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</property>

    <mapping class="com.nda.hibernate.Person"/>
</session-factory>
</hibernate-configuration>

Person.class:

package com.nda.hibernate;

import javax.persistence.Entity;
import javax.persistence.Id;


@Entity
public class Person {

    private String name;

    @Id
    private int number;

    public Person() {}

    public Person(String name, int number) {

        this.name=name;
        this.number=number;
    }

    public void setName(String name) {
        this.name=name;
    }

    public String getName() {
        return name;
    }

    public void setNumber(int number) {
        this.number=number;
    }

    public int getNumber() {
        return number;
    }
}

I have Denwer installed. Parameters for using: login - root, password is empty. Server is localhost, and has database "test" with table "person"(CHAR(50) name, INT(10) number - primary key)

Main.class:

    SessionFactory sessions=new AnnotationConfiguration().configure().buildSessionFactory();
    Session session=sessions.openSession();

It doesn't work. I have got some errors:

03.03.2012 14:11:07 org.hibernate.annotations.common.Version <clinit>
INFO: HCANN000001: Hibernate Commons Annotations {4.0.1.Final}
03.03.2012 14:11:07 org.hibernate.Version logVersion
INFO: HHH000412: Hibernate Core {4.1.0.Final}
03.03.2012 14:11:07 org.hibernate.cfg.Environment <clinit>
INFO: HHH000206: hibernate.properties not found
03.03.2012 14:11:07 org.hibernate.cfg.Environment buildBytecodeProvider
INFO: HHH000021: Bytecode provider name : javassist
03.03.2012 14:11:07 org.hibernate.cfg.Configuration configure
INFO: HHH000043: Configuring from resource: /hibernate.cfg.xml
03.03.2012 14:11:07 org.hibernate.cfg.Configuration getConfigurationInputStream
INFO: HHH000040: Configuration resource: /hibernate.cfg.xml
03.03.2012 14:11:07 org.hibernate.internal.util.xml.DTDEntityResolver resolveEntity
WARN: HHH000223: Recognized obsolete hibernate namespace http://hibernate.sourceforge.net/. Use namespace http://www.hibernate.org/dtd/ instead. Refer to Hibernate 3.6 Migration Guide!
03.03.2012 14:11:07 org.hibernate.cfg.Configuration doConfigure
INFO: HHH000041: Configured SessionFactory: null
03.03.2012 14:11:07 org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000402: Using Hibernate built-in connection pool (not for production use!)
03.03.2012 14:11:07 org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000115: Hibernate connection pool size: 20
03.03.2012 14:11:07 org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000006: Autocommit mode: false
03.03.2012 14:11:07 org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000401: using driver [com.mysql.jdbc.Driver] at URL [jdbc:mysql://localhost/test]
03.03.2012 14:11:07 org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000046: Connection properties: {user=root, password=****}
03.03.2012 14:11:08 org.hibernate.dialect.Dialect <init>
INFO: HHH000400: Using dialect: org.hibernate.dialect.MySQL5Dialect
03.03.2012 14:11:08 org.hibernate.engine.transaction.internal.TransactionFactoryInitiator initiateService
INFO: HHH000399: Using default transaction strategy (direct JDBC transactions)
03.03.2012 14:11:08 org.hibernate.hql.internal.ast.ASTQueryTranslatorFactory <init>
INFO: HHH000397: Using ASTQueryTranslatorFactory

How can I fix it? Thank you.

I don't see any exception in that log. Could you please show a log with an exception. — Sergey Benner

Neo182 Neo182 · Accepted Answer · 2012-08-26T21:51:29

I was also having the same problem. After some Googling, I solve the problem.

All you have to do is to change the namespace "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd" to "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd" as specified in Hibernate 3.6 Migration Guide.

How to fix error with my first Hibernate project?

4 Answers