Running First Hibernate 3.0 Example

Hi kruti,

Hope ur problem is solved, in case if its not, just add the required libraries in ur buildpath.To run hibernate pgm properly, u need to add the required libraries in the projects buildpath.

Posted by shruthi on Tuesday, 03.18.08 @ 19:50pm | #53207

when i am trying to run hibernate factory class in debug mode then on buildsessionFactory line i am getting error that "The hibernate3.jar source not found"

pls tell me how to solve this

Posted by kruti on Friday, 03.7.08 @ 12:13pm | #51815

Hi Faaud,

You can resolve your problem below problem
------------------------------------------
Exception in thread "main" java.lang.NoClassDefFoundError: net.sf.cglib.core.DebuggingClassWriter$1
------------------------------------------

by doing this:

You have add cglib-2.1.3.jar file into your class file.

OR

If you are working with eclipse 3.0 or 3.1 then this jar file should be added to user library.

OR

go to PROJECT - > PROPERTIES -> JAVA BUILD PATH -> LIBRARIES -> Add External Jars ->
define the path for this jar file.

Now i think you woun't get any error.

Posted by Subnesh on Monday, 03.3.08 @ 14:19pm | #51131

When I run code of sample example at line :

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

I get following error:

Exception in thread "main" java.lang.NoClassDefFoundError: net.sf.cglib.core.DebuggingClassWriter$1
at java.lang.Class.initializeClass(libgcj.so.8rh)
at net.sf.cglib.core.DebuggingClassWriter.toByteArray(DebuggingClassWriter.java:66)
at net.sf.cglib.core.DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy.java:26)
at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:215)
at net.sf.cglib.core.KeyFactory$Generator.create(KeyFactory.java:145)
at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:117)
at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:108)
at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:104)
at org.hibernate.impl.SessionFactoryImpl.<clinit>(SessionFactoryImpl.java:308)
at java.lang.Class.initializeClass(libgcj.so.8rh)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1043)
at FirstExample.main(FirstExample.java:21)
Caused by: java.lang.ClassNotFoundException: org.objectweb.asm.util.TraceClassVisitor not found in gnu.gcj.runtime.SystemClassLoader{urls=[file:/home/nis/batch2007/FAnwar/workspace/Test/New/bin/,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/ant-1.6.2.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/ant-antlr-1.6.2.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/ant-junit-1.6.2.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/ant-launcher-1.6.2.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/antlr-2.7.4.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/ant-swing-1.6.2.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/c3p0-0.8.5.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/cglib-full-2.0.2.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/cleanimports.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/commons-collections-2.1.1.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/commons-logging-1.0.4.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/concurrent-1.3.2.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/connector.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/dom4j-1.5.2.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/ehcache-1.1.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/hibernate3.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/jaas.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/jacc-1_0-fr.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/jaxen-1.1-beta-4.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/jboss-cache.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/jboss-common.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/jboss-jmx.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/jboss-remoting.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/jboss-system.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/jdbc2_0-stdext.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/jgroups-2.2.7.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/jta.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/junit-3.8.1.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/log4j-1.2.9.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/mysql-connector-java-3.0.16-ga-bin.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/mysql-connector-java-3.1.6-bin.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/oscache-2.1.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/proxool-0.8.3.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/swarmcache-1.0rc2.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/versioncheck.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/xerces-2.6.2.jar,file:/home/nis/batch2007/FAnwar/workspace/hibernate/lib/xml-apis.jar], parent=gnu.gcj.runtime.ExtensionClassLoader{urls=[], parent=null}}
at java.net.URLClassLoader.findClass(libgcj.so.8rh)
at gnu.gcj.runtime.SystemClassLoader.findClass(libgcj.so.8rh)
at java.lang.ClassLoader.loadClass(libgcj.so.8rh)
at java.lang.ClassLoader.loadClass(libgcj.so.8rh)
at java.lang.Class.forName(libgcj.so.8rh)
at java.lang.Class.initializeClass(libgcj.so.8rh)
...11 more

Posted by Faaud on Thursday, 02.28.08 @ 19:07pm | #50586

when i tried the example program with transaction autocommited,i am still getting message like
log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).
log4j:WARN Please initialize the log4j system properly.
Inserting Record
Hibernate: insert into CONTACT (FIRSTNAME, LASTNAME, EMAIL, ID) values (?, ?, ?, ?)
Could not execute JDBC batch update

Posted by panbil on Thursday, 02.28.08 @ 14:59pm | #50403

At the time of working with this example:
- table gets created in database
- but no record is inserted

The given below is the solution for the Porblem:

In your FirstExample.java, the transaction should be started explicitly and after saveing your contact details transaction should be commited explicitly.


write below lines before the doing anything with your contact class.
-----------------------------------------------
tx = session.beginTransaction();

//Create new instance of Contact and set values in it by reading them from form object
System.out.println("Creating New Contact detail.");
Contact contact = new Contact();
System.out.println("providing contact details");
contact.setId(6); // Primary key has to be unique for every record inserted!
contact.setFirstName("subnesh");
contact.setLastName("sharma");
contact.setEmail("subnesh@gmail.com");
session.save(contact);
tx.commit();
System.out.println("Contact saved into database successfully");
------------------------------------------------


or

rather then making changes in your FirstExample.java (use same code as privided in this tutorial), you can add new property to hibernate.cfg.xml file with below code:

<property name="hibernate.connection.autocommit"> true </property>
------------------------------------

Posted by subnesh on Wednesday, 02.27.08 @ 11:44am | #50282

Its really nice example to the things in a repid way. Understandable and more focus is on "how to do mappings".
Good work done

As some other developers suggested to do some changes in the code, i made them and then got the data in database.

Thanks again buddy :)

Posted by Subnesh on Wednesday, 02.27.08 @ 11:19am | #50277

hi i run that program. the output in the console came as shown in the tutorial. but when i cheak the database nothing is inserted in that. did any one cheaked it. please give me suggestion. because i am new to hibernate and to java

Posted by sandeep on Tuesday, 02.26.08 @ 06:35am | #50098

Thank you. It is good to start with. I started with this example, faced some problems, but finally I got through.

Posted by Pradeep Kumar on Thursday, 02.14.08 @ 17:02pm | #48265

it is really nice tutorial for bigners;

Posted by vishvadeep on Wednesday, 02.13.08 @ 21:08pm | #48167