Hibernate Firstexample

I am getting null pointer exception at SessionFactory sessionFactory = new Configuration().configure().buildSessionFactory();

Can anyone help me?

Posted by Ranjith on Thursday, 08.27.09 @ 16:00pm | #90356

I too get the same exception. could any1 please explain on this

Thanks

Posted by Sharadha on Thursday, 04.9.09 @ 17:28pm | #86688

this is excelent

thanks for this

Posted by raghava on Tuesday, 12.16.08 @ 12:13pm | #82837

After
session.save(contact);
add
session.beginTransaction().commit();
or
session.connection().commit();

I think it will solve ur problem

Posted by mahesh on Wednesday, 12.3.08 @ 22:21pm | #82347

to the dudes having NPE - additional libraries are required:
antlr-2.7.6.jar,commons-collections-3.1.jar,commons-logging.jar,dom4j-1.6.1.jar,javassist-3.4.GA.jar,jta-1.1.jar,slf4j-api-1.5.3.jar,slf4j-jcl-1.5.3.jar

see hibernate distribution

Posted by Tom on Monday, 10.6.08 @ 16:30pm | #80927

NO INSERTION HAPPENS!!

System.out.println("Inserting Record");
Contact contact = new Contact();
contact.setId(6);
contact.setFirstName("Deepak");
contact.setLastName("Kumar");
contact.setEmail("deepak");
session.save(contact);
System.out.println("Done");
}catch(Exception e){
System.out.println("in Exception");
System.out.println(e.getMessage());
}finally{
// Actual contact insertion will happen at this step
System.out.println("the finally block");
session.flush();
session.close();
System.out.println("out of finally");
}

HIBNERNATE CFG:

<property name="hibernate.connection.driver_class">oracle.jdbc.OracleDriver</property>
<property name="hibernate.connection.url">jdbc:oracle:thin:@10.20.169.171:1521:CFSDEV </property>
<property name="hibernate.connection.username">Cfs_sas</property>
<property name="hibernate.connection.password">cfs123</property>
<property name="hibernate.connection.pool_size">10</property>
<property name="show_sql">true</property>
<property name="dialect"> org.hibernate.dialect.OracleDialect </property>

<property name="hibernate.hbm2ddl.auto">update</property>
<!-- Mapping files -->
<mapping resource="contact.hbm.xml"/>

Posted by Sanket on Wednesday, 09.24.08 @ 16:52pm | #80660

when i was executing the code iam geting following Exception in thread "main" java.lang.NullPointerException
at roseindia.tutorial.hibernate.FirstExample.main(FirstExample.java:42)
any one plz help

Posted by sreekumar on Friday, 09.19.08 @ 13:13pm | #80482

hi when i am running this example then i am getting nullpointer exception like "Exception in thread "main" java.lang.NullPointerException" ..please anyone help me

Posted by preeti on Monday, 09.15.08 @ 14:44pm | #79553

i need more basic examples programs on hibernate.

Posted by naveen on Saturday, 09.13.08 @ 12:28pm | #79090

it is good but tell me more details of the each and every line of the first xml codind

Posted by eswar on Thursday, 09.11.08 @ 11:20am | #78647

Hi,
I am trying run the firstexample of hybernate.I got the follwing problems.

<property name="firstName">
<column name="FIRSTNAME"/>
</property>

If i use the above code in the xml,
i got

The content of element type "property" must match "null"

Here, when i remove the column tag only, the error will disapper.

When i run the program,

org.hibernate.mappingException : could not read mappings from resource- contact.hbm.xml..

Please help me..

Posted by Kiran on Friday, 09.5.08 @ 15:11pm | #77247

Im runing this example in my struts application ..,

when it reach this line , im getting nullpointer exception ..,
pls help me out of this..

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

[8/12/08 13:55:48:266 IST] 65502792 RequestProces W org.apache.struts.action.RequestProcessor Unhandled Exception thrown: class java.lang.NullPointerException
[8/12/08 13:55:49:234 IST] 65502792 WebGroup E SRVE0026E: [Servlet Error]-[]: java.lang.NullPointerException

Thanks
Mani

Posted by Mani on Tuesday, 08.12.08 @ 14:05pm | #72478

Make slight modification to code to insert data into DB.Otherwise it will only be in session.

In FirstExample.java

Contact contact = new Contact();
contact.setId(3);
contact.setFirstName("Deepak");
contact.setLastName("Kumar");
contact.setEmail("deepak_38@yahoo.com");
Transaction tx = session.beginTransaction();
session.save(contact);
tx.commit();
System.out.println("Done");

In contact.hbm.xml change class "assigned" to "increment"

<id name="id" type="long" column="ID" >
<generator class="increment"/>
</id>

Posted by Sanjiv bhargava on Thursday, 06.12.08 @ 19:26pm | #63125

what to write in the Driver name if we are using Oracle database

Posted by naresh on Wednesday, 06.11.08 @ 10:47am | #62998

hell sir
when i am executing the FirstExample in struts
it is showing nullpointer exception..can you give the solution for this..

Posted by suresh on Wednesday, 05.28.08 @ 14:20pm | #61264

hi.... I use the above code to run my project but it showed me following error: log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment). log4j:WARN Please initialize the log4j system properly. entity class not found: Student But the Student class is present. Even i did mapping in hibernate.cfg.xml The Person.hbm.xml file is: <?xml version="1.0"?> <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"> <!-- Generated May 12, 2008 11:13:52 AM by Hibernate Tools 3.2.1.GA --> <hibernate-mapping> <class name="Person" table="person" catalog="test"> <id name="personId" type="int"> <column name="personId" /> <generator class="assigned" /> </id> </class> </hibernate-mapping> and the Student.hbm.xml file is: <?xml version="1.0"?> <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"> <!-- Generated May 12, 2008 11:13:52 AM by Hibernate Tools 3.2.1.GA --> <hibernate-mapping> <class name="Student" table="student" catalog="test"> <id name="studentId" type="int"> <column name="studentId" /> <generator class="assigned" /> </id> <property name="studentName" type="string"> <column name="studentName" length="20" /> </property> <property name="studentAge" type="java.lang.Integer"> <column name="studentAge" /> </property> <property name="personId" type="java.lang.Integer"> <column name="personId" /> </property> </class> </hibernate-mapping>

Posted by Anita on Monday, 05.12.08 @ 22:57pm | #59515

If you r a beginer then plz do not forget to add c:\hibernate-3.2\lib\*.jar files to your class path variable.
Otherwise Main method will how errors.

Posted by Amit Ruhil on Sunday, 04.27.08 @ 21:19pm | #58002

While i am running the FirstExample.java file runas javaApplication it is showing
Dialect class not found:
java.lang.NullPointerException
at src.com.FirstExample.main(FirstExample.java:29)
Exception in thread "main"

Error.so how can i solve this. Can anyone needful to me..

Posted by Naveen on Wednesday, 04.23.08 @ 18:36pm | #57704

Hi,
Based on the example given , I'm trying to run my application using Hibernate 2.1. But I'm getting exception net.sf.hibernate.MappingException : Error reading Resource Employee.hbm.xml.

I have my hibernate.cfg.xml and Employee.hbm.xml in project/bin/ folder as suggested.

My Employee.hbm.xml is as follows
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping SYSTEM "Sun/Workspace/HibernateExample/Sun/Workspace/HibernateExample/hibernate-mapping-2.0.dtd" >
<hibernate-mapping>
<class name="com.hibernate.Employee" table="Employee">
<id name="empID" type="Integer" column="EmpID">
<generator class="assigned"></generator>
</id>
<property name="dob">
<column name="DOB"/>
</property>
<property name="empName">
<column name="EmpName"/>
</property>
<property name="salary">
<column name="Salary"/>
</property>
</class>
</hibernate-mapping>

and my hibernate.cfg.xml is as follows
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-2.0.dtd">
<hibernate-configuration>
<session-factory name="MyFactory">
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.url">jdbc:mysql://localhost:3306/MySQL</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.connection.password">root</property>
<property name="show_sql">true</property>
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="hibernate.hbm2ddl.auto">update</property>
<mapping resource="Employee.hbm.xml"/>
</session-factory>
</hibernate-configuration>

Please do guide me in getting this resolved.

Posted by Ravi on Monday, 03.31.08 @ 08:21am | #54848

hi

i'm trying to do the firstexample of hybernate.but i'm recieving the message as follows

Inserting Record
Hibernate: insert into CONTACT (FNAME, LNAME, EMAIL) values (?, ?, ?)
Done


data is not inserted in to record..and no error or exceptin message

Posted by Dhanushka Jayathilaka on Tuesday, 03.18.08 @ 18:23pm | #53198

Hello RoseIndia Team / Deepak Kumar,

Please include begin transaction and commit transaction statements in FirstExample.java to save the data in the database.
---------------------------------------------
SessionFactory sessionFactory = new Configuration().configure().buildSessionFactory();
session=sessionFactory.openSession();
Transaction tx=session.beginTransaction();//This line is Missing in the example.

session.save(contact);
tx.commit();//Missing in the example.
----------------------------------------------

As per the example the datas doesn't get save in the database and beginners have to struggle a lot.
I hope you will do the needful ASAP.
Thank you,
Suraj Gupta

Posted by Suraj Gupta on Tuesday, 03.18.08 @ 17:09pm | #53185

init:
deps-jar:
Compiling 1 source file to D:\java\HibernateDemo\build\classes
compile:
run:
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 (?, ?, ?, ?)
Done
BUILD SUCCESSFUL (total time: 2 seconds)

************************************************
why this message is coming? Evenif the record was inserted.

Hibernate: insert into CONTACT (FIRSTNAME, LASTNAME, EMAIL, ID) values (?, ?, ?, ?)

Posted by tapan on Tuesday, 03.11.08 @ 18:05pm | #52305

Hi,

I am trying out these examples and using in my code but the session.save(object) does not insert the object in the DB.Am not getting any errors or exceptions here is a snippet of the console stdout :
********insert Start for test********8
generated identifier: 1, using strategy: org.hibernate.id.Assigned
insert Test Done
processing flush-time cascades
dirty checking collections
Flushed: 1 insertions, 0 updates, 0 deletions to 1 objects
Flushed: 0 (re)creations, 0 updates, 0 removals to 0 collections
listing entities:
com.directv.ei.hibernate.pojos.hqltest{name=Auntora, id=1}
about to open PreparedStatement (open PreparedStatements: 0, globally: 0)
opening JDBC connection
insert into HQLTEST (NAME, ID) values (?, ?)
Hibernate: insert into HQLTEST (NAME, ID) values (?, ?)
Executing batch size: 1
success of batch update unknown: 0
about to close PreparedStatement (open PreparedStatements: 1, globally: 1)
releasing JDBC connection [ (open PreparedStatements: 0, globally: 0) (open ResultSets: 0, globally: 0)]
aggressively releasing JDBC connection
----------------------------------------------********insert Start for test********8
generated identifier: 1, using strategy: org.hibernate.id.Assigned
insert Test Done
processing flush-time cascades
dirty checking collections
Flushed: 1 insertions, 0 updates, 0 deletions to 1 objects
Flushed: 0 (re)creations, 0 updates, 0 removals to 0 collections
listing entities:
com.directv.ei.hibernate.pojos.hqltest{name=Auntora, id=1}
about to open PreparedStatement (open PreparedStatements: 0, globally: 0)
opening JDBC connection
insert into HQLTEST (NAME, ID) values (?, ?)
Hibernate: insert into HQLTEST (NAME, ID) values (?, ?)
Executing batch size: 1
success of batch update unknown: 0
about to close PreparedStatement (open PreparedStatements: 1, globally: 1)
releasing JDBC connection [ (open PreparedStatements: 0, globally: 0) (open ResultSets: 0, globally: 0)]
aggressively releasing JDBC connection
----------------------------------------------********insert Start for test********8
generated identifier: 1, using strategy: org.hibernate.id.Assigned
insert Test Done
processing flush-time cascades
dirty checking collections
Flushed: 1 insertions, 0 updates, 0 deletions to 1 objects
Flushed: 0 (re)creations, 0 updates, 0 removals to 0 collections
listing entities:
com.directv.ei.hibernate.pojos.hqltest{name=Test, id=1}
about to open PreparedStatement (open PreparedStatements: 0, globally: 0)
opening JDBC connection
insert into HQLTEST (NAME, ID) values (?, ?)
Hibernate: insert into HQLTEST (NAME, ID) values (?, ?)
Executing batch size: 1
success of batch update unknown: 0
about to close PreparedStatement (open PreparedStatements: 1, globally: 1)
releasing JDBC connection [ (open PreparedStatements: 0, globally: 0) (open ResultSets: 0, globally: 0)]
aggressively releasing JDBC connection
----------------------------------------------

Can anyone help.......

Posted by a on Tuesday, 03.4.08 @ 05:15am | #51234

By commiting ur transaction ur problem may be solved

SessionFactory sessionFactory = new Configuration().configure().buildSessionFactory();
session=sessionFactory.openSession();
Transaction tx=session.beginTransaction();

System.out.println("Inserting Record");
Contact contact=new Contact();

contact.setFirstName("Deepak");
contact.setLastName("kumar");
contact.setEmail("pra@yahoo.com");
contact.setId(3);
session.save(contact);
System.out.println("Done");
tx.commit();

Posted by prabhu on Saturday, 02.23.08 @ 15:47pm | #49662

When is better place to close a session?. I mean, if I've a UserManager class, and I've:

getById
getByName
...

Is convenient that I open a session for all methods into the constructor or open (and close) a session in each method?

Best regards.

Juan Pablo.

Posted by juan pablo on Thursday, 02.21.08 @ 00:12am | #49250

Hi,
I receive the following error:
Resource: ro/isd/db/t1.hbm.xml not found

t1.hbm.xml is in same package as t1.java

Please, help.

Posted by iulian on Wednesday, 02.20.08 @ 20:17pm | #49229

While Iam running the First Example..I am getting NullPointer Exception...Any one can help me in Ths Regards...
Thanks In Advance..
SessionFactory sessionFactory = new Configuration().configure().buildSessionFactory();

System.out.println("222222222222222");
session =sessionFactory.openSession();
System.out.println("3333333333");
//Create new instance of Contact and set values in it by reading them from form object
Transaction tx=session.beginTransaction();
System.out.println("Inserting Record");
Contact contact = new Contact();
contact.setId(6);
contact.setFirstName("Satya");
contact.setLastName("Soft");
contact.setEmail("satyasoft@gmail.com");
session.save(contact);
System.out.println("Done");

Posted by Satyanarayana.n on Saturday, 02.16.08 @ 19:45pm | #48617

how to retrive data from a database

Posted by hhh on Saturday, 01.19.08 @ 18:41pm | #45597

Hi all.
i m new with hibernet.......when i m trying to run my first application i m getting following exceptio.
Exception in thread "main" java.lang.NullPointerException
at com.FirstExample.main(FirstExample.java:33).

Posted by sapna on Wednesday, 01.16.08 @ 15:38pm | #45349

i am using Microsoft SQL Server. and i m getting a error that
JDBC Driver class not found: com.microsoft.jdbc.sqlserver.SQLServerDriver.
can anybody help me out

Posted by Anup on Saturday, 01.12.08 @ 21:16pm | #45059

Hibernate: insert into CONTACT (FIRSTNAME, LASTNAME, EMAIL, ID) values (?, ?, ?, ?)

but data is not updating or inserting or updating into data base

Posted by anand on Thursday, 01.10.08 @ 10:10am | #44885

Hi,
I am new to hibernate concept,
i did this example .but
DATA IS NOT UPDATING IN database,

I have the same problem

log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).
log4j:WARN Please initialize the log4j system properly.
Inserting Record
Done
Hibernate: insert into CONTACT (FIRSTNAME, LASTNAME, EMAIL, ID) values (?, ?, ?, ?)

but data is not updating or inserting or updating into data base

table has been created.but data's are not updating. Where i need to do the modification.

Thanks in advance.
sam.R
+919902199334

Posted by sam on Thursday, 01.3.08 @ 09:59am | #44414

i ahve java,mysql,hibernate on my machine..

i have defined class structure..
have defined xml mapping..
have created hibernate.cfg.xml
have created corresponding database

now my manager is asking to create class object n then store it in DB..but i dont have either apache ant or eclipse (or something else)..

is it possible..can u help me..waiting for ur reply..
:)

Posted by gunjan on Thursday, 12.20.07 @ 15:17pm | #43100

This might be a good article if there weren't annoying ads sitting in front of the text.

What is the point of a site that can't be read????

Posted by matt on Tuesday, 12.18.07 @ 21:16pm | #42855

If you get log4j error written below:

log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).
log4j:WARN Please initialize the log4j system properly.
/hibernate.cfg.xml not found

Please add log4j.properties in the project, your problem will be solved.

Posted by Sudhir Tewatia on Friday, 12.14.07 @ 14:12pm | #42229

hi all.
i m new with hibernet.......when i m trying to run my first application i m getting following exceptio.
Exception in thread "main" java.lang.NullPointerException
at com.FirstExample.main(FirstExample.java:33).
i have deployed all the jar files properly........but why i m getting such problem...........plz reply me.........thanx
kamlesh

Posted by kamlesh Rewapati on Friday, 12.7.07 @ 02:01am | #41478

i am new to hibernate so whats ur advice .... what are the thinks that i hav to know before starting hibernate ..which IDE supports hibernate .. pls advice.......

Posted by rajanish on Thursday, 12.6.07 @ 19:58pm | #41461

when i run the program i am getting java.lang.noclassdeffound error and exception in thread main.please tell how to solve the promblem

Posted by sagar on Friday, 11.23.07 @ 12:16pm | #38617

test

Posted by test on Tuesday, 11.20.07 @ 11:19am | #37926

Why we are using sessionFactory,Session concepts in hybernet?

Posted by jahnavi on Saturday, 11.17.07 @ 12:06pm | #37611

DATA IS NOT UPDATING IN database,

I have the same problem

log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).
log4j:WARN Please initialize the log4j system properly.
Inserting Record
Done
Hibernate: insert into CONTACT (FIRSTNAME, LASTNAME, EMAIL, ID) values (?, ?, ?, ?)

but data is not updating or inserting or updating into data base

Posted by Jagg on Tuesday, 11.6.07 @ 02:36am | #35730

In test.java please commit to data base which will be stored in contact
Transaction tx=session.beginTransaction();
session.save(contact);
tx.commit();

Posted by ram on Monday, 11.5.07 @ 23:29pm | #35691

Hi i m trying ur FirstExample
But I m getting NumberFormatException

java.lang.NumberFormatException: For input string: ""
at java.lang.NumberFormatException.forInputString(Unknown Source)
at java.lang.Integer.parseInt(Unknown Source)
at java.lang.Integer.parseInt(Unknown Source)
at org.hibernate.util.PropertiesHelper.getInt(PropertiesHelper.java:23)
at org.hibernate.connection.DriverManagerConnectionProvider.configure(DriverManagerConnectionProvider.java:40)
at org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:80)
at org.hibernate.cfg.SettingsFactory.createConnectionProvider(SettingsFactory.java:301)
at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:111)
at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:1497)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1041)
at roseindia.tutorial.hibernate.FirstExample.main(FirstExample.java:25)
For input string: ""


Please tell me what to do?

thanks...

Posted by pradnya on Monday, 10.29.07 @ 16:52pm | #35065

log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).
log4j:WARN Please initialize the log4j system properly.
/hibernate.cfg.xml not found
org.hibernate.HibernateException: /hibernate.cfg.xml not found
at org.hibernate.util.ConfigHelper.getResourceAsStream(ConfigHelper.java:147)
at org.hibernate.cfg.Configuration.getConfigurationInputStream(Configuration.java:1287)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1309)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1296)
at roseindia.tutorial.hibernate.FirstExample.main(FirstExample.java:19)
Exception in thread "main" java.lang.NullPointerException
at roseindia.tutorial.hibernate.FirstExample.main(FirstExample.java:35)

Posted by G on Monday, 10.29.07 @ 13:20pm | #35055

Hi,

I have created one application using hibernate with HSQL. I wanted to change it to MySQL. When I have changed my Hibernate.properties file but after changing the file i get the following error.

HTTP ERROR: 503
SERVICE_UNAVAILABLE
RequestURI=/

Powered by jetty://


pls help me asap..

Thanks in Advance.
Swapnil P.Patil.

Posted by Swapnil on Friday, 10.19.07 @ 13:16pm | #34386

Hi,

i am, getting log4j errors when i am running above code could any body let me know why warning displaying.i am pasting those warnings here.

log4j: no appenders could be found for logger(org.hibernate.cfg.environment)
log4j: please initialize log4j system properly.

Posted by subrahmanyam on Wednesday, 10.10.07 @ 19:56pm | #33015

Hello,
I am using NetBeans IDE and while I was trying to run the above code, I got the following error.
-------------------------------------------------
log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).
log4j:WARN Please initialize the log4j system properly.
Could not parse configuration: /hibernate.cfg.xml
---------------------------------------------------
I am new to hibernate and don't know why this has occurred. I think it must not be able to parse the xml configuration file. Can anyone help me.

Posted by srs on Tuesday, 10.9.07 @ 11:46am | #32610

this example, inserting data with wornings log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).
log4j:WARN Please initialize the log4j system properly.

Posted by Alok Mishra on Thursday, 10.4.07 @ 14:38pm | #31361

Hi i am using sql server database and i am getting this output

log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).
log4j:WARN Please initialize the log4j system properly.
Inserting Record
Done
Hibernate: insert into CONTACT (FIRSTNAME, LASTNAME, EMAIL, ID) values (?, ?, ?, ?)

but data is not updating or inserting or updating into data base

Posted by SHAMEMA on Sunday, 09.30.07 @ 14:44pm | #30501

Hi,

i am trying standalone hibernate program,while excuting org.hibernate.cfg.Configuarion =new Configuration(); giving following error.

Please any one can help me ASAP.


Exception in thread "main" java.lang.ExceptionInInitializerError
at com.hibernate.client.BookInsertion.main(BookInsertion.java:21)
Caused by: org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: java.lang.NullPointerException (Caused by java.lang.NullPointerException) (Caused by org.apache.commons.logging.LogConfigurationException: java.lang.NullPointerException (Caused by java.lang.NullPointerException))
at org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:543)
at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:235)
at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:209)
at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:351)
at org.hibernate.cfg.Configuration.<clinit>(Configuration.java:110)
... 1 more
Caused by: org.apache.commons.logging.LogConfigurationException: java.lang.NullPointerException (Caused by java.lang.NullPointerException)
at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:397)
at org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:529)
... 5 more
Caused by: java.lang.NullPointerException
at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:374)
... 6 more

Posted by Padeep on Wednesday, 09.26.07 @ 16:07pm | #29712

hi there is problem with url string which u r entering
so let me know whic db u r using and db server m/c ip

Posted by Rahul on Saturday, 09.15.07 @ 12:05pm | #27016

Hi i am using sql server database and i am getting this output

log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).
log4j:WARN Please initialize the log4j system properly.
Inserting Record
Done
Hibernate: insert into CONTACT (FIRSTNAME, LASTNAME, EMAIL, ID) values (?, ?, ?, ?)

but data is not updating or inserting or updating into data base

Posted by Rahul on Saturday, 09.15.07 @ 11:53am | #27015

Hi,

I am getting the below exception while running the program. The table structure is created though but no data is getting inserted to the table and then the exception.



Hibernate: insert into CONTACT (FIRSTNAME, LASTNAME, EMAIL, ID) values (?, ?, ?, ?)
org.hibernate.jdbc.BatchedTooManyRowsAffectedException: Batch update returned unexpected row count from update [0]; actual row count: 7810893; expected: 1
at org.hibernate.jdbc.Expectations$BasicExpectation.checkBatched(Expectations.java:71)
at org.hibernate.jdbc.Expectations$BasicExpectation.verifyOutcome(Expectations.java:46)
at org.hibernate.jdbc.BatchingBatcher.checkRowCounts(BatchingBatcher.java:68)
at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:48)
at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:246)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:237)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:141)
at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:298)
at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:338)
at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106)
at FirstExample.main(FirstExample.java:33)

If anyone has come across this type of exception. Pls help..

Thanks in advance!
Sunny

Posted by Sunny on Thursday, 09.13.07 @ 22:27pm | #26930

I figured out the problem in FirstExample.java why it is not inserting into the database.
The problem is there is no demarcation of Transaction.

Please add following code appropriately.
org.hibernate.Transaction tx = session.beginTransaction();
//ALL the code

tx.commit();

Posted by Prashant on Friday, 09.7.07 @ 07:16am | #26266

I am also facing the same problem as Parvesh. The database is built with all the tables but Contact data is not getting inserted. Also there is no error. Can somebody help us?

Thanks

Posted by Prashant on Friday, 09.7.07 @ 06:51am | #26216

Hi,

When I am trying to run this application.

I am getting NullPointer Exception.

Please give me the feedback.

Regards,
Sundararaman.V.S.

Posted by Vidyasankar Sundararaman on Thursday, 09.6.07 @ 15:48pm | #25285

Can i create an new schema(table) in my database using Hibernate provided i have my POJOs and mappings ready?

Posted by Divya on Thursday, 09.6.07 @ 11:17am | #25190

first example running best but data which I insert not found in the database although the table structure is build. Means shows table but with out any data. The console output is same as you shown

Posted by parvesh on Thursday, 08.30.07 @ 12:45pm | #24493

when running the hibernet programe iam getting the NullPointer Exception.so please tell me why iam getting the exception.

Posted by sreenivas on Monday, 08.27.07 @ 17:05pm | #24253

here Session is Hibernate Session so
//SessionFactory sessionFactory = ((Object)new Configuration()).configure().buildSessionFactory();
Object SessionFactory;
session = ((Object)SessionFactory).openSession();


above lines of code is wrong as 'openSession is method of Hibernates Sesion not of Object's method.

So in place of above place the following code :
SessionFactory sessionFactory = new Configuration().configure().buildSessionFactory();
session =sessionFactory.openSession();

Posted by Pawan on Thursday, 08.23.07 @ 17:29pm | #23983

hello, I'm trying to use hte source code that is given, but then I got error

log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).
log4j:WARN Please initialize the log4j system properly.
Inserting Record
Done
Exception in thread "main" org.hibernate.exception.JDBCConnectionException: Cannot open connection
.......
Caused by: java.sql.SQLException: Syntax error or access violation message from server: "Unknown database 'hibernatetutorial'"
.......

please tell me what should I do?thank you

Posted by yolan on Monday, 08.13.07 @ 11:09am | #23270

This site is very useful.

Right now i am looking for an Example on Hibernate+Spring, which will intract with Portals, which run inside Portal server, can any one help in in this issue.

I want to develop an Basic application , which takes some input from user, and stores it in sql server database, and I need to use spring+hibernate in that.

Posted by Hanumantha Rao on Thursday, 08.2.07 @ 16:24pm | #22490

Hi , you must be inserting the same value in the column which is primary key.

Posted by Balakrishna on Thursday, 08.2.07 @ 10:27am | #22469

This document is very useful

Posted by mohan on Wednesday, 07.25.07 @ 03:33am | #21872

problem occuring while parsing mapping file

Posted by PAVAn on Sunday, 07.22.07 @ 14:06pm | #21733

Hi I went through this tutorial but i am getting one error which is compilation error: please tell me why is it?

I changed some code like this in FirstExample.java :
==========================================

package net.roseindia.tutorial.hibernate;
import org.hibernate.*;
import javax.security.auth.login.*;

//import roseindia.tutorial.hibernate.*;

public class FirstExample
{
public static void main(String[] args)
{
Session session = null;

try
{
// This step will read hibernate.cfg.xml and prepare hibernate for use
//SessionFactory sessionFactory = ((Object)new Configuration()).configure().buildSessionFactory();
Object SessionFactory;
session = ((Object)SessionFactory).openSession();
//Create new instance of Contact and set values in it by reading them from form object
System.out.println("Inserting Record");
Contact contact = new Contact();
contact.setId(6);
contact.setFirstName("Deepak");
contact.setLastName("Kumar");
contact.setEmail("deepak_38@yahoo.com");
session.save(contact);
System.out.println("Done");
}
catch(Exception e)
{
System.out.println(e.getMessage());
}
finally
{
// Actual contact insertion will happen at this step
session.flush();
session.close();
}
}
}


I am getting error :

Exception in thread "main" java.lang.Error: Unresolved compilation problem:
The method openSession() is undefined for the type Object

at net.roseindia.tutorial.hibernate.FirstExample.main(FirstExample.java:18)


Please help me to solve the problem....

Posted by Gajanan K Bandale on Thursday, 07.19.07 @ 15:46pm | #21568

I got the list from hql query.Now how can i print the value of each row of the table from the list object.If any one has the solution pls mail me.

Posted by Suresh kumar on Wednesday, 07.11.07 @ 15:16pm | #21082

log4j:WARN No appenders could be found for logger (roseindia.tutorial.hibernate.HibernateUtil).
log4j:WARN Please initialize the log4j system properly.
Exception in thread "main" java.lang.ExceptionInInitializerError
at roseindia.tutorial.hibernate.HibernateUtil.<clinit>(HibernateUtil.java:29)
at roseindia.tutorial.hibernate.FirstExample.main(FirstExample.java:23)
Caused by: java.lang.NoClassDefFoundError: org/dom4j/DocumentException
at roseindia.tutorial.hibernate.HibernateUtil.<clinit>(HibernateUtil.java:24)
... 1 more

Posted by shiva on Wednesday, 07.11.07 @ 12:35pm | #21068

exceeption while inserting the record into DB on hibernate. i am getting the following exception

can anyone plz help me, thanks

Hibernate: insert into events (name, amount, desc, id) values (?, ?, ?, ?)
org.hibernate.exception.SQLGrammarException: Could not execute JDBC batch update
at org.hibernate.exception.ErrorCodeConverter.convert(ErrorCodeConverter.java:70)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:179)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:226)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:136)
at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:274)
at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:726)
at src.com.EventMain.main(EventMain.java:35)
Caused by: java.sql.BatchUpdateException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'desc, id) values ('chowdary', null, null, 0)' at line 1
at com.mysql.jdbc.PreparedStatement.executeBatchSerially(PreparedStatement.java:1093)
at com.mysql.jdbc.PreparedStatement.executeBatch(PreparedStatement.java:851)
at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:57)
at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:172)
... 6 more
Exception in thread "main"

Posted by praveen on Tuesday, 07.10.07 @ 14:59pm | #21025

og4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).
log4j:WARN Please initialize the log4j system properly.

Posted by shanth on Saturday, 07.7.07 @ 11:45am | #20871

am connecting to Mysql.its showing but the record is not getting inserted.
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 (?, ?, ?, ?)
Done

Posted by jijo on Tuesday, 06.26.07 @ 11:29am | #20203

I am connecting to Mysql.its showing but the record is not getting inserted.
log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).
log4j:WARN Please initialize the log4j system properly.
Inserting Record
Done
Hibernate: insert into CONTACT (FIRSTNAME, LASTNAME, EMAIL, ID) values (?, ?, ?, ?)

Posted by jijo on Tuesday, 06.26.07 @ 11:25am | #20201

instead of "net.sf.hibernate.dialect.Oracle9Dialect" use "org.hibernate.dialect.MySQLDialect"..

Posted by soma on Monday, 06.25.07 @ 15:43pm | #20148

Hi I am getting the following error can anybody help.

log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).
log4j:WARN Please initialize the log4j system properly.
java.lang.NullPointerException
at roseindia.tutorial.hibernate.FirstExample.main(FirstExample.java:40)
Dialect class not found: net.sf.hibernate.dialect.Oracle9Dialect
Exception in thread "main"

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.driver_class">oracle.jdbc.driver.OracleDriver</property>
<property name="hibernate.connection.url">jdbc:oracle:thin:@localhost:1521:orcl</property>
<property name="hibernate.connection.username">scott</property>
<property name="hibernate.connection.password">tiger</property>
<property name="hibernate.connection.pool_size">10</property>
<property name="show_sql">true</property>
<property name="dialect">net.sf.hibernate.dialect.Oracle9Dialect</property>
<property name="hibernate.hbm2ddl.auto">update</property>
<!-- Mapping files -->
<mapping resource="contact.hbm.xml"/>
</session-factory>
</hibernate-configuration>

contact.hbm.xml
----------------
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping>
<class name="roseindia.tutorial.hibernate.Contact" table="CONTACT">
<id name="id" type="long" column="ID" >
<generator class="assigned"/>
</id>

<property name="firstName">
<column name="FIRSTNAME" />
</property>
<property name="lastName">
<column name="LASTNAME"/>
</property>
<property name="email">
<column name="EMAIL"/>
</property>
</class>
</hibernate-mapping>

Contact.java
------------------
package roseindia.tutorial.hibernate;

/**
* @author Deepak Kumar
*
* Java Class to map to the datbase Contact Table
*/
public class Contact {
private String firstName;
private String lastName;
private String email;
private long id;

/**
* @return Email
*/
public String getEmail() {
return email;
}

/**
* @return First Name
*/
public String getFirstName() {
return firstName;
}

/**
* @return Last name
*/
public String getLastName() {
return lastName;
}

/**
* @param string Sets the Email
*/
public void setEmail(String string) {
email = string;
}

/**
* @param string Sets the First Name
*/
public void setFirstName(String string) {
firstName = string;
}

/**
* @param string sets the Last Name
*/
public void setLastName(String string) {
lastName = string;
}

/**
* @return ID Returns ID
*/
public long getId() {
return id;
}

/**
* @param l Sets the ID
*/
public void setId(long l) {
id = l;
}

}


FirstExample.java
-----------------------
package roseindia.tutorial.hibernate;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import org.hibernate.Transaction;
import java.sql.SQLException;
/**
* @author Deepak Kumar
*
* http://www.roseindia.net
* Hibernate example to inset data into Contact table
*/
public class FirstExample {
public static void main(String[] args) {
Session session = null;


try{
// This step will read hibernate.cfg.xml and prepare hibernate for use
SessionFactory sessionFactory = new Configuration().configure().buildSessionFactory();
session =sessionFactory.openSession();
Transaction tx=session.beginTransaction();
//Create new instance of Contact and set values in it by reading them from form object
System.out.println("Inserting Record");
Contact contact = new Contact();
contact.setId(3);
contact.setFirstName("Deepak");
contact.setLastName("Kumar");
contact.setEmail("deepak_38@yahoo.com");
session.save(contact);
tx.commit();
System.out.println("Done");
}catch(Exception e){
System.out.println(e.getMessage());


}finally{
// Actual contact insertion will happen at this step
session.flush();
try{
session.connection().commit();
}
catch(SQLException e)
{
System.out.println(e.getMessage()) ;
}

session.close();

}

}
}

Posted by MIthun on Thursday, 06.21.07 @ 11:19am | #19849

while I'm trying to get the session in the Hibernateprogram by using the below statement I'm executing this program in NetBeans5.0 and using the databaseserver is MySql4.1

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

it is giving that Exception in thread "main" java.lang.NullPointerException

I'm not able to connect to hibernate.cfg.xml this file and also tell me where can i place these(hibernate.cfg.xml and hibernate.hbm.xml) files in NetBeans5.0

please can u any body helpme regarding this problem

Posted by Gandhi on Wednesday, 06.13.07 @ 12:48pm | #19095

log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).
log4j:WARN Please initialize the log4j system properly.
Exception in thread "main" java.lang.NullPointerException
at kalyan.hibernate.FirstExample.main(FirstExample.java:39)
Could not parse mapping document from resource contact.hbm.xml

Posted by kalyan on Saturday, 06.9.07 @ 21:44pm | #18745

Cannot open connection
Cannot open connection
log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).
log4j:WARN Please initialize the log4j system properly.

Posted by rajesh on Tuesday, 06.5.07 @ 13:42pm | #18268

This page is very useful.

Posted by Kanagasabapathi Palanisamy on Friday, 06.1.07 @ 22:58pm | #17968

I think that the following 2 lines are needed to insert the data into the database.

<b>Transaction tx=session.beginTransaction();</b>

Contact contact = new Contact();
contact.setId(3);
...
session.save(contact);

<b>tx.commit();</b>

Posted by fresh on Thursday, 05.31.07 @ 19:58pm | #17873

i think you need to place log.properties file application root directory.
i resolved this by doing same thing

Posted by imtiyaz on Tuesday, 05.29.07 @ 15:51pm | #17644

I am connecting to Oracle.its showing but the record is not getting inserted.
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 (?, ?, ?, ?)
Done

Posted by Vijay on Monday, 05.28.07 @ 16:21pm | #17535

I am getting the following error message when i execute this program in eclipse.
I am not aware where to put the hibernate.cfg.xml file

log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).
log4j:WARN Please initialize the log4j system properly.
/hibernate.cfg.xml not found
Exception in thread "main" java.lang.NullPointerException
at com.gm.efecs.em.cg.HibernateExample.main(HibernateExample.java:39)

Posted by Nalini on Thursday, 05.24.07 @ 13:03pm | #17142

Hi,

Since Hibernate is a persistence tool. It performs the operation in transactinal environment. Inorder to work the above code should me modified as.

try{
// This step will read hibernate.cfg.xml and prepare hibernate for use
SessionFactory sessionFactory = new Configuration().configure().buildSessionFactory();
session =sessionFactory.openSession();
Transaction tx=session.beginTransaction();
//Create new instance of Contact and set values in it by reading them from form object
System.out.println("Inserting Record");
Contact contact = new Contact();
contact.setId(3);
contact.setFirstName("Deepak");
contact.setLastName("Kumar");
contact.setEmail("deepak_38@yahoo.com");
session.save(contact);
tx.commit();
System.out.println("Done");
}catch(Exception e){
System.out.println(e.getMessage());

Posted by Srinivas on Wednesday, 05.23.07 @ 16:44pm | #17092

Hi Chris,
Thanks a lot for your suggestion.It did work!!! Still not sure, why we need to flush and then commit the connection.

Posted by Anand Kishore on Wednesday, 05.16.07 @ 17:44pm | #16150

hi,
When i try to run this example i am getting the following error
log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).
log4j:WARN Please initialize the log4j system properly.
Could not parse mapping document from resource contact.hbm.xml

Posted by gayathri on Wednesday, 05.16.07 @ 12:47pm | #16118

to make this work you need to commit after the flush.

session.connection().commit();

works fine after that.

c.

Posted by Chris Schulz on Friday, 05.11.07 @ 11:53am | #15635

Hi,

I have the same problem as Anand. I extracted the sample app, set the config etc... the app runs fine with no exceptions... the table is created but no record is inserted. any ideas?

win xp, my sql 5, eclipse 3.2, java 1.5

cheers.

Posted by Chris Schulz on Friday, 05.11.07 @ 05:52am | #15625

Hi,
I am trying the same tutorial as suggested and also the program (FirstExample.java) is running in eclipse IDE without any errors.It is also showing the output as given in tutorial. But when i check the values in the mysql database, the values are not inserted in the mysql database. Please provide solution for it.

Posted by Tester on Friday, 05.4.07 @ 21:01pm | #15278

Hi, i got following error message when i executed simple java application.

WARNING: No connection properties specified - the user must supply JDBC connections
Exception in thread "main" org.hibernate.HibernateException: Hibernate Dialect must be explicitly set
at org.hibernate.dialect.DialectFactory.determineDialect(DialectFactory.java:57)

The content of hibernate-cfg.xml is #

<session-factory>
<property name="hibernate.connection.driver_class">org.hsqldb.jdbcDriver</property>
<property name="hibernate.connection.url">jdbc:hsqldb:hsql://localhost:9001/xdb</property>
<property name="hibernate.connection.username">sa</property>
<property name="hibernate.connection.password"></property>
<property name="hibernate.connection.pool_size">10</property>
<property name="show_sql">true</property>
<property name="hibernate.dialect">org.hibernate.dialect.HSQLDialect</property>
<property name="hibernate.hbm2ddl.auto">update</property>
<!-- Mapping files -->
<mapping resource="Track.hbm.xml"/>
</session-factory>

I am unable to find any error in the above xml. Please suggest me how to solve this.

Regards,
Raghav

Posted by raghavendar on Friday, 05.4.07 @ 15:42pm | #15264

Excellent.

Very simple way of explaing how to configure the hibernate.

good one..

Posted by Shalem Merugolu on Wednesday, 05.2.07 @ 13:09pm | #15161

I am working MySQL Server and Hibernate as suggested in the example.After executing the client to insert a record neither do I get any exception nor does the data gets inserted into the contact table.Wondering where the data is going ???

Posted by Anand Kishroe on Thursday, 04.26.07 @ 11:43am | #14954

Regarding Arun,

make sure you have these jar files added to avoid errors..

commons-collections/3.2/commons-collections-3.2.jar
dom4j/1.6/dom4j-1.6.jar
log4j/1.2.11/log4j-1.2.11.jar
postgresql/8.1-404.jdbc3/postgresql-8.1-404.jdbc3.jar
hibernate/3.1.2/hibernate-3.1.2.jar
commons-logging/1.0.4/commons-logging-1.0.4.jar
cglib/2.1.3/cglib-2.1.3.jar
asm/1.5.3/asm-1.5.3.jar
jta/1.0.1B/jta-1.0.1B.jar

Posted by new guy on Saturday, 04.14.07 @ 00:55am | #14128

Great tutorials!

Thanks so much!

Posted by Lucise on Tuesday, 04.10.07 @ 08:05am | #13689

when i try to run this im getting this error
log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).
log4j:WARN Please initialize the log4j system properly.
Exception in thread "main" java.lang.NoClassDefFoundError: net/sf/ehcache/CacheException
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
at java.lang.Class.getConstructor0(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at org.hibernate.cfg.SettingsFactory.createCacheProvider(SettingsFactory.java:327)
at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:219)
at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:1881)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1174)
at roseindia.tutorial.hibernate.FirstExample.main(FirstExample.java:21)

Posted by Arun on Monday, 04.9.07 @ 12:58pm | #13627

hi all,this is one of the site to learn,which included here step by step.


thanks
naidu

Posted by naidu annamaneni on Thursday, 03.29.07 @ 13:28pm | #12902

One of the best places to learn about almost anything in a fast and simple manner. I have been referring to this site so often and a great tool to help yourself to get into the race immediately.
Thanks all

Posted by ash on Wednesday, 03.21.07 @ 12:00pm | #12330

I have exeption nullpoint in line
SessionFactory sessionFactory = new Configuration().configure().buildSessionFactory();
I brocked line to 2 lines
Configuration conf = new Configuration();
SessionFactory sessionFactory = conf.configure().buildSessionFactory();
end exeption cam in 1 line
pls help me Thanks.

Posted by dima on Wednesday, 03.14.07 @ 16:35pm | #11689

I could insert the records into dbase, with out using the transaction.commit().
Any reason for this to happen .

Please can you let meknow..

thanks,
Srini

Posted by Srini on Sunday, 03.11.07 @ 05:33am | #11349

this tutorial helps me to understand about hibernate.

Posted by shyama on Saturday, 03.10.07 @ 07:04am | #11294

Hi, really this is site is very useful not for the biggners also for the experience people....I am trying to develop a small appliaction in hibernate.jsut to show the contents of the tables thru class..but i am facing following errors anybody can help me...log4j:WARN No appenders could be found for logger (com.src.TestMehjong).
log4j:WARN Please initialize the log4j system properly.
Exception in thread "main" org.hibernate.HibernateException: No CurrentSessionContext configured!
at org.hibernate.impl.SessionFactoryImpl.getCurrentSession(SessionFactoryImpl.java:506)
at com.src.TestMehjong.listTable(TestMehjong.java:44)
at com.src.TestMehjong.main(TestMehjong.java:36)

Posted by Durgesh on Friday, 03.9.07 @ 11:34am | #11225

Good job done!!
Its really usefull n interesting!!!
Pretty simple to understand also!!

Posted by Priyanka on Wednesday, 02.28.07 @ 12:53pm | #9937

I am new to hibernates, I would like to know directory structure of deploying and placing xml and java classes. Also to compile them as step by step process. please help me

Posted by Mamatha on Tuesday, 02.27.07 @ 12:33pm | #9805

hi all,
this is one of the tutorial which ll guide u in an efficient manner for those who want to excel in Hibernate...it gives u the very basic knowledge of what hibernate is....so a good foundation for ur skill

regards
Suma Manohar Humberi

Posted by Suma Manohar Humberi on Tuesday, 02.27.07 @ 10:34am | #9791

Good tutorial for beginners.

Thanks,
Sandeep

Posted by Sandeep Bisani on Saturday, 02.24.07 @ 21:47pm | #9479

Show us the steps not the code , we beginners want the steps not the code . This document is not formatted and misguide us . We need simple steps .

If anybody can help , please help me ..

Thanks

Posted by Rahul on Saturday, 02.24.07 @ 12:01pm | #9429

This is a terrific tutorial and much better than any book I can buy. It helped me a lot with my work. May you always be able to write great lessions like this!

Posted by Larry on Tuesday, 02.20.07 @ 18:50pm | #8516

hi

this is very good website to beginer and
thank you verymuch for website people and staff

ok bye hava a nice day

Posted by rama on Thursday, 02.15.07 @ 22:07pm | #7992

As a beginner to hibernate technology, I find this tutorial very useful . Initially I faced some problems while running the application.
Like I was not able to view data added to the database.

I tried with mysql 4.1.21 and added 3.1.14 as mysql connector.Then it worked fine.

Thank you very much !!!!!!

Posted by Nisha on Monday, 02.12.07 @ 09:55am | #7493

gud example. keep the gud work.

Posted by raju on Thursday, 02.8.07 @ 05:17am | #6697

This website contains very useful tutorials...illustrated in a very simple way...most of the tutorials helped me to learn & experiment new things in java world....
thanks....

Posted by sam mg on Wednesday, 02.7.07 @ 16:26pm | #6602

very nice tutorial man.
i hav already worked on hibernate,
just now saw ur code,
for beginners it is very very useful.
pl continue, by creating these kind of,
simple tuts..
thank u..

Posted by Yesudas S on Tuesday, 02.6.07 @ 12:57pm | #6374

plz help me get the ddl statements in an file.im not getting it inspite of providing the attribute <schemaexport output="hello.sql"

Posted by meera thomas on Monday, 02.5.07 @ 13:31pm | #6144

Thankyou... thankyou... I've been pulling my hair out trying to wrap my head around hibernate with MySQL and I've searched the net high and low. This simple tute answered more of my questions than any of the examples on the hibernate website or any other that I could find.. great job.

Posted by matt pegg on Thursday, 02.1.07 @ 05:01am | #5057

how to create the config.xml in eclipse IDE

Posted by Rama on Wednesday, 01.31.07 @ 16:38pm | #4913

RoseIndia tutorials are simple enough for beginners like me.

Thank you so much.

Posted by Jithendralal on Wednesday, 01.31.07 @ 13:18pm | #4878

Hi Deepak,

Thanks a lot for such a useful tutorial. I am new to hibernate and now I think this tutorial will help me become familiar with it soon.

Thanks Again

Posted by Mayank PAndya on Thursday, 01.25.07 @ 23:58pm | #4366

Thanx a lot, excellent material.

Posted by Vijay on Thursday, 01.25.07 @ 11:59am | #4306

Hi Deepak,

I am able to run it successfully. I have set ID column as Auto_Increment primary key, so I commented setting ID value and when executing, it is giving error as:
Could not execute JDBC batch update

How to go about it?

Thank you in advance!

Posted by Hussain on Wednesday, 01.24.07 @ 06:56am | #4217

right now if u FirstExample it will not insert the data into the database.

To insert the data we need to add u more line of code i.e as follows

--> Transaction tx = session.beginTransaction();
--> tx.commit();

FirstExample.java
==================


package roseindia.tutorial.hibernate;

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


/**
* @author Deepak Kumar
*
* http://www.roseindia.net
* Hibernate example to inset data into Contact table
*/
public class FirstExample {
public static void main(String[] args) {
Session session = null;

try{
// This step will read hibernate.cfg.xml and prepare hibernate for use
SessionFactory sessionFactory = new Configuration().configure().buildSessionFactory();
session =sessionFactory.openSession();
Transaction tx = session.beginTransaction();
//Create new instance of Contact and set values in it by reading them from form object
System.out.println("Inserting Record");
Contact contact = new Contact();
contact.setId(6);
contact.setFirstName("Deepak");
contact.setLastName("Kumar");
contact.setEmail("deepak_38@yahoo.com");
System.out.println("Done");
session.save(contact);
tx.commit();
System.out.println("Done");


}catch(Exception e){
System.out.println("exception");
System.out.println(e.getMessage());
}finally{
// Actual contact insertion will happen at this step
System.out.println("before flush=========================================");
session.flush();
session.close();

}

}
}

Posted by Nitin Somani on Monday, 01.22.07 @ 18:13pm | #4043

hi...

this is a very good tutorial for the beginners....

i would like say thanks to all of u who has done this..

All the best

Hridayesh kalauni

Posted by Hridayesh on Friday, 01.19.07 @ 12:25pm | #3814

hi
iam new to hibernate. iam using hssqldb.jar as a database.
if anything i missed plz rectify me..

1) i properly configured hibernate.cfg.xml & mapping file.
2) i started hsqldb server
3) when run my application am getting this kind of exception

"org.hibernate.HibernateException: NoTransactionManagerLookup specified".

what for this exception is raising i dont understand..but i guess this is for transaction kind of....

anybody can help me "How to fix this impact". i am waiting for your response...

Narayana

Posted by Narayana B on Tuesday, 01.16.07 @ 14:43pm | #3618

hi Deepak,
i tried your hibernateexample all examples are working fine except First Example, it showing same output on the console of eclipse but not inserting the records. but other examples are working fine with database. plz help

Posted by bhushan on Wednesday, 01.10.07 @ 11:43am | #3102

Hi almost i got executed hibernate application.but iam getting one execption that is javax/transaction/synchronized how to eliminate this error. what should i do please reply as soon as
Thanks & regards

Posted by Ramu on Monday, 01.8.07 @ 21:10pm | #2980

nice tuts....vv helpfull

Posted by sidd on Friday, 01.5.07 @ 14:38pm | #2681

Thank you very much!
This is by far the least complicated tutorial for getting started with hibernate. Can't say the same for the rest of them :(

Keep up the good work ;)

Posted by sordan on Thursday, 01.4.07 @ 20:53pm | #2650

nice to get such avery useful code here only

Posted by mahendra bisen on Thursday, 12.28.06 @ 17:51pm | #2156

Dear Sir,
really it was a very nice excersise for me .I am also new to Hibernate.I followed your instruction.
I got the message
Hibernate: insert into CONTACT (FIRSTNAME, LASTNAME, EMAIL, ID) values (?, ?, ?, ?)
but the values are not inserting into database.
Please guide me ,how can i insert the value in table

Posted by Deepak on Tuesday, 12.26.06 @ 16:20pm | #2040

Hi deepak,
This is the best beginners tutorial I have seen till now..
Compared to others it makes the point straight forward, and is quite simple.....
thanks a lot...

Posted by Seshu on Saturday, 12.23.06 @ 17:49pm | #1502

Hi,

Tutorial is good and very useful for the beginners. Clearly explained with the examples. Thanku for one and all who contributed their efforts for this roseindia.net.

Thanks & Regards,
G.Sailatha

Posted by Sai on Friday, 12.22.06 @ 05:50am | #1429

Hi
Your website is very helpful to me,coz i have got from this, Keep it up
Thanks and Regards
Balraj Kumar

Posted by Balraj Kumar on Thursday, 12.21.06 @ 03:34am | #1377

Tutorial is excelent
i am having following problem
when i am running first example in eclipse tables are created but records are not getting in mysql.
Thanks for such a good tutorial :).

Posted by rahul on Wednesday, 12.20.06 @ 17:26pm | #1355

Excellent artical. Very easy to read and suitable for the beginners. Well done Deepak.

cheers,

Posted by Rahul on Monday, 12.18.06 @ 19:27pm | #1197

hello Depak the example is presented very nicely
thanks for ur efforts....keep it up..

Posted by rakesh thakur on Friday, 12.15.06 @ 12:47pm | #1063

Great work! I am very new in Hibernate even today is my first day and my understanding of it is good just coz of RoseIndia and Mr. Deepak. Keep it up.

Posted by Mukesh Kr. Singh on Thursday, 12.14.06 @ 16:29pm | #1024

Hi Harish,

You wrap the session.save() method within transaction block and then commit the transaction.

SessionFactory sessionFactory = new Configuration().configure().buildSessionFactory();
session =sessionFactory.openSession();
Transaction tx;
try {
tx = session.beginTransaction();
//do some work
Contact contact = new Contact();
contact.setId(3);
contact.setFirstName("Deepak");
contact.setLastName("Kumar");
contact.setEmail("deepak_38@yahoo.com");
session.save(contact);

tx.commit();
}
catch (Exception e) {
if (tx!=null) tx.rollback();
throw e;
}
finally {
session.close();
}

After modifying the code in this way, you will be able to solve the problem.

Thanks
Deepak

Posted by Deepak Kumar on Saturday, 12.9.06 @ 23:54pm | #714

The example is not showing any errors.
But, it is not inserting the record.
Weblogic 8.1 and Oracle 8i environment.

Posted by harish on Saturday, 12.9.06 @ 22:56pm | #712

Need some more information on Bundling of the package and how we can relate to actual senario

Posted by Manoj on Friday, 12.8.06 @ 13:39pm | #628

hi i'm new to hibernate and i need to use mysql maxdb, but have problems with the hibernate.cfg.xml and drivers thta i need to add to the build path of my project can smb help me

Posted by Desislava on Wednesday, 12.6.06 @ 14:34pm | #493

Hello Sir,
I have seen roseindia.net for first time might be this is the best tutorial i have ever seen on Internet which teaches completely from the scratch.

Posted by muneeb on Wednesday, 12.6.06 @ 14:12pm | #490

I am new to hibernate...
I just gone through it...very nice and easy to understand..

Posted by najma on Monday, 12.4.06 @ 15:05pm | #382

I'm new to Hibernate, and this tutorial helped me a lot. Thank you so much Deepak!!

Keep up the good work :)

Posted by semaj on Friday, 12.1.06 @ 10:44am | #298

you have given but somewhat it confused.

Posted by arjun on Monday, 11.27.06 @ 23:17pm | #158

you have given but somewhat it confused.

Posted by arjun on Monday, 11.27.06 @ 20:56pm | #155

you have given but somewhat it confused.

Posted by arjun on Monday, 11.27.06 @ 20:42pm | #154

Hi i'm trying to implement the above example but i got fatal exception . first of all i couldnt able to create sessionfactory. null pointer exception occured at the creating of sessionfactory. pls do advise me. Thanks

Posted by Visalatchi Jayakumar on Monday, 11.27.06 @ 15:36pm | #142

I love this page!
I'm new to java technology and Your website helps me much! I'll recomment this page to my friends.

Thank you very much!

Posted by Nguyen Ngoc Kien on Thursday, 11.23.06 @ 16:18pm | #52