Java Community | Help. Code. Learn.•13mo ago

Hibernate cfg.xml Error

package com.myhibernate;

import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;

/**
 * Hello world!
 *
 */
public class App 
{
    public static void main( String[] args )
    {
        System.out.println( "Hello World!" );

        Configuration configuration = new Configuration();
        configuration.configure();
        SessionFactory sessionFactory = configuration.buildSessionFactory();

        System.out.println(sessionFactory);
    }
}

package com.myhibernate;

import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;

/**
 * Hello world!
 *
 */
public class App 
{
    public static void main( String[] args )
    {
        System.out.println( "Hello World!" );

        Configuration configuration = new Configuration();
        configuration.configure();
        SessionFactory sessionFactory = configuration.buildSessionFactory();

        System.out.println(sessionFactory);
    }
}

64 Replies

JavaBot•13mo ago

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dan1st•13mo ago

well the file needs to be called hibernate.cfg.xml and it needs to be in your resources directory (typically src/main/resources)

Manish KumarOP•13mo ago

i haven't resources folder, there is src/main/java i tried this also

dan1st•13mo ago

you can create one

Manish KumarOP•13mo ago

is it mandetory?

dan1st•13mo ago

what?

Manish KumarOP•13mo ago

resources pkg

dan1st•13mo ago

I think so

Manish KumarOP•13mo ago

should i make it root dir?

dan1st•13mo ago

well technically you can also change the pom.xml in weird ways just create a src/main/resources directory and reload the Maven project in IJ

Manish KumarOP•13mo ago

okk

dan1st•13mo ago

and make sure you have your hibernate.cfg.xml in there

Manish KumarOP•13mo ago

btw i need a guide do u have 2-3 mints?

dan1st•13mo ago

src/main/java -> Java files src/main/resources -> other things that are part of the application maybe if you have questions, just ask

Manish KumarOP•13mo ago

have you learnt Spring boot?

dan1st•13mo ago

I do know Spring Boot

Manish KumarOP•13mo ago

only know? means you haven't made any project etc! ?

dan1st•13mo ago

I have a project with it In fact, with a friend, I have written 128 pages for a final school project which was a spring project

Manish KumarOP•13mo ago

I need guide I am currently Learning hibernate i have learnt Jdbc , Spring core , Spring Jdbc , 50% of servlet Jsp ( j2ee ) should i learn J2EE fully? should i learn hibernate/ Spring mvc etc. before Spring boot?

dan1st•13mo ago

Use Spring with Spring Boot and you can learn most of Hibernate with Spring JPA

Manish KumarOP•13mo ago

like i am not feeling well , it's boring without any projects 💀,

dan1st•13mo ago

Also J2EE is a name that isn't in use any more. It's Jakarta EE now

Manish KumarOP•13mo ago

can u tell me which things i learn directly,

dan1st•13mo ago

What do you want to learn?

Manish KumarOP•13mo ago

spring boot

dan1st•13mo ago

then learn Spring stuff

Manish KumarOP•13mo ago

all spring modules?

dan1st•13mo ago

well you probably don't need every module

Manish KumarOP•13mo ago

Jakarta is required for that? also html CSS 💀

dan1st•13mo ago

Spring uses Jakarta EE and Hibernate internally

Manish KumarOP•13mo ago

that's i am asking which things i learn before Spring boot

dan1st•13mo ago

but it abstracts over it a lot

Manish KumarOP•13mo ago

i have knowledge about it

dan1st•13mo ago

And you don't need HTML/CSS/JS for Spring directly but if you make a web application with Spring, you'll probably need it

Manish KumarOP•13mo ago

ohk ...

dan1st•13mo ago

Do you know Maven or Gradle?

Manish KumarOP•13mo ago

last question i have Knowledge, it's manage our dependencies like we don't need to add jar file manually

dan1st•13mo ago

You should be able to use it

Manish KumarOP•13mo ago

.. you haven't give ans for that i will back within 20-30mints bye Give me a good short raodmap pls

dan1st•13mo ago

cause I don't know exactly I don't have one but ig if you want to know Spring/Spring Boot, do that

Manish KumarOP•13mo ago

error is fix @dan1st | Daniel but new error occurs, i.e. MySQL let me show u

Manish KumarOP•13mo ago

dan1st•13mo ago

well the user you set in your hibernate.cfg.xml cannot access the schema actually, it looks like it wasn't able to use the things in that file oh you used hibernate.connect not hibernate.connection

Manish KumarOP•13mo ago

ohk 1s now it's saying ` unable to determi Dialect without jdbc metadata

dan1st•13mo ago

Did you change all bibernate.connects to hibernate.connection?

Manish KumarOP•13mo ago

solvedd

dan1st•13mo ago

Also, please use codeblocks instead of images if possible (for text/code)

Manish KumarOP•13mo ago

i was using connect in Dialect, hdm2ddl.autk ok sir next tym ty for your help @dan1st | Daniel new error 🥲

WARN: HHH000342: Could not obtain connection to query metadata
java.lang.UnsupportedOperationException: The application must supply JDBC connections

WARN: HHH000342: Could not obtain connection to query metadata
java.lang.UnsupportedOperationException: The application must supply JDBC connections

Feb 24, 2024 9:28:26 PM org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl constructDialect
WARN: HHH90000025: MySQLDialect does not need to be specified explicitly using 'hibernate.dialect' (remove the property setting and it will be selected by default)
Feb 24, 2024 9:28:27 PM org.hibernate.metamodel.internal.EntityInstantiatorPojoStandard resolveConstructor
INFO: HHH000182: No default (no-argument) constructor for class: com.myhibernate.Student (class must be instantiated by Interceptor)
Feb 24, 2024 9:28:28 PM org.hibernate.engine.transaction.jta.platform.internal.JtaPlatformInitiator initiateService
INFO: HHH000489: No JTA platform available (set 'hibernate.transaction.jta.platform' to enable JTA platform integration)
Exception in thread "main" java.lang.UnsupportedOperationException: The application must supply JDBC connections

Feb 24, 2024 9:28:26 PM org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl constructDialect
WARN: HHH90000025: MySQLDialect does not need to be specified explicitly using 'hibernate.dialect' (remove the property setting and it will be selected by default)
Feb 24, 2024 9:28:27 PM org.hibernate.metamodel.internal.EntityInstantiatorPojoStandard resolveConstructor
INFO: HHH000182: No default (no-argument) constructor for class: com.myhibernate.Student (class must be instantiated by Interceptor)
Feb 24, 2024 9:28:28 PM org.hibernate.engine.transaction.jta.platform.internal.JtaPlatformInitiator initiateService
INFO: HHH000489: No JTA platform available (set 'hibernate.transaction.jta.platform' to enable JTA platform integration)
Exception in thread "main" java.lang.UnsupportedOperationException: The application must supply JDBC connections

dan1st•13mo ago

ok it seems like com.myhibernate.Student is missing a no-args constructor looks like your connection URL might be wrong in some way

Manish KumarOP•13mo ago

i fixed this Error constructor err why what happened?

dan1st•13mo ago

Does the myhiber database exist?

Manish KumarOP•13mo ago

yes i have create in my terminal and this is still in my front 💀

dan1st•13mo ago

What Hibernate version are you using?

Manish KumarOP•13mo ago

latest 644*

dan1st•13mo ago

Is there more shown in the console? Can you show your hibernate.cfg.xml again? Do you have a persistence.xml?

Manish KumarOP•13mo ago

no sure

<?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.connect.driver_class">com.mysql.cj.jdbc.Driver</property>
        <property name="hibernate.connect.url">jdbc:mysql://localhost:3306/myhiber</property>
        <property name="hibernate.connect.username">username</property>
        <property name="hibernate.connect.password">password</property>
        <property name="dialect">org.hibernate.dialect.MySQLDialect</property>
        <property name="hbm2ddl.auto">update</property>
        <property name="show_sql">true</property>

        <mapping class="com.myhibernate.Student"/>
    </session-factory>

</hibernate-configuration>

<?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.connect.driver_class">com.mysql.cj.jdbc.Driver</property>
        <property name="hibernate.connect.url">jdbc:mysql://localhost:3306/myhiber</property>
        <property name="hibernate.connect.username">username</property>
        <property name="hibernate.connect.password">password</property>
        <property name="dialect">org.hibernate.dialect.MySQLDialect</property>
        <property name="hbm2ddl.auto">update</property>
        <property name="show_sql">true</property>

        <mapping class="com.myhibernate.Student"/>
    </session-factory>

</hibernate-configuration>

mysql version 8.0.36

dan1st•13mo ago

Is it connect or connection?

Manish KumarOP•13mo ago

connect

dan1st•13mo ago

I thought you changed everything to connection? I think it should be hibernate.connection

Manish KumarOP•13mo ago

no i had connection first so i changed

dan1st•13mo ago

Which error are you getting when using hibernate.connection everywhere?

Manish KumarOP•13mo ago

should i use connection? let me again check wtf it's Working 😃😃

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