Running First Hibernate 3.0 Example

Hi Carl,

You get the following exceptions when you do not have the mysql-connector-java-3.0.16-ga-bin.jar and mysql-connector-java-3.1.6-bin.jar in the Java build path
------------------
Exception in thread "main" java.lang.NullPointerException
at roseindia.tutorial.hibernate.FirstExample.main(FirstExample.java:36)
--------------

If you are using eclipse, then Project -> properties - > java Build Path -> libraries tab -> ensure you have MySQL connectors mentioned above here...if not add using the 'Add jars' or 'Add External Jars' option

Posted by saikrishna on Wednesday, 10.15.08 @ 13:56pm | #81095

Thanks to Rose India, and thanks to Deepak, for implementing Hibernate, in such a simple fashion. This program has really worked for me. And helped me to enhance it, for complex application. Thanks again.

If any of you, get problem in inserting data in to contact table.

Create contact table in the following way.

CREATE TABLE `Contact` (

`id` INT UNSIGNED NOT NULL AUTO_INCREMENT ,
`firstName` VARCHAR( 50 ) NOT NULL ,
`lastName` VARCHAR( 250 ) NOT NULL ,
`email` VARCHAR( 100 ) NOT NULL ,
PRIMARY KEY ( `id` )
) TYPE = MYISAM ;

Posted by Pratap on Thursday, 10.9.08 @ 16:05pm | #80980

You have to create the table for contact for this to work

CREATE TABLE `Contact` (
`id` int(11) NOT NULL default '0',
`firstname` varchar(20) NOT NULL default '',
`lastname` varchar(20) NOT NULL default '',
`email` varchar(30) default NULL,
PRIMARY KEY (`id`)
) TYPE=MyISAM;

Posted by Amro on Wednesday, 09.17.08 @ 18:10pm | #80100

If you are getting nullpointer then there is problem like include all the jar files which are need for hibernate then it will work fine
required jar files for hibernate are:

hibernate3.jar
dom4j.jar
commons-logging.jar
commons-collections.jar
cglib.jar
concurrent.jar
derby-10.1.2.1.jar
jta1.0.1.jar

Posted by preeti on Monday, 09.15.08 @ 17:15pm | #79588

Reply to the questions asked in the forum(after the question).Make the tutorial as small as possible. I downloaded the tutorial and I am able to see many unwanted things which are not required to run a simple program(it may confuse). I too had the same problem which a user has already asked. If you would have answered to his question means i might not have asked the same question. My problem is
(I ran the application and got output as shown in tutorial. but it did not insert any record in database.)

Posted by thiagarajan on Saturday, 09.13.08 @ 14:12pm | #79102

For some reason, my application didn't insert any data into the table. What's wrong?

Posted by handreach on Sunday, 09.7.08 @ 04:06am | #77610

I am getting the following error when I try to run the FirstExample.java in eclipse.

Exception in thread "main" java.lang.NullPointerException
at roseindia.tutorial.hibernate.FirstExample.main(FirstExample.java:36)

Does anyone has a fix for this?

Posted by Carl on Wednesday, 09.3.08 @ 23:38pm | #77021

its really working ... good job..guys..

Posted by shyam on Friday, 08.15.08 @ 11:33am | #72930

while implementing first hibernate code i am getting NullPointerException in main.

Posted by Tejashree D. Bhanawala on Thursday, 08.14.08 @ 16:32pm | #72820

I ran the application and got output as shown in tutorial. but it did not insert any record in database.

I am using oracle 10g and my setting is
<property name="dialect">org.hibernate.dialect.OracleDialect</property>
is it wrong ?

Posted by sandeep on Wednesday, 06.4.08 @ 16:18pm | #62081