Home Discussion Discuss: Writing First Hibernate Code

  • values are not inserted into the table?anonymous April 9, 2011 at 6:00 PM

    after running the firstexample program it runs successfully but doesn't insert the hardcoded values into the contact table. please explain me why values are not inserted into the contact table?

  • good!sid June 16, 2011 at 4:48 PM

    good helpfull!

  • Regarding xml filespriya July 10, 2011 at 5:27 PM

    Hello sir, Do we have to put all the xml files in the src folder only?

  • hai shabbir July 1, 2011 at 4:04 PM

    ya friends ur giving full information about how to write first hibernet program but how to run ? information is not there.

  • session transaction?Ameet September 13, 2011 at 8:07 AM

    I tried your tutorial. After a bit of a struggle figured that we need to wrap the session into a session.beginTransaction() and session.getTransaction().commit(). Please clarify.

  • Hibernate Basicsprasad September 21, 2011 at 8:22 PM

    If we have Servlet-Jsp technologies then why we use hibernate instead of it

  • session.flush not working!doesn't matter October 12, 2011 at 4:11 PM

    I followed this tutorial and session.flush didnt work for me. I googled this issue and still couldnt find any promising results. The solution Ive discovered so far is transaction.commit. Any bright ideas?

  • ErrorBilaal December 6, 2011 at 12:00 AM

    Hi I am learning how to use hibernate and I tried this example, but I have an error in this line: session.flush(); Can you please show please, how the project tree is organized.

  • Problem with this exampleBhoj Raj bhatt December 17, 2011 at 8:52 AM

    When I run above example I have with session.flush(). Error message: exception java.lang.NullPointerException helloPackage.hello.doPost(hello.java:80) javax.servlet.http.HttpServlet.service(HttpServlet.java:641) javax.servlet.http.HttpServlet.service(HttpServlet.java:722) . Here line 80 means: session.flush();. please reply why ???

  • No InsertionGaurav January 3, 2012 at 3:12 AM

    I got the message Hibernate: insert into CONTACT (FIRSTNAME, LASTNAME, EMAIL, ID) values (?, ?, ?, ?) And the values are not inserting?? Please help..

  • Code ProblemAbhishek Chaudhary February 2, 2012 at 5:32 PM

    I am new in hibernate, I am using your this example as reference. But your this example is not working, The program is not giving any output, can you tell me why is it so??

  • himani February 14, 2012 at 7:02 PM

    good site

  • Required Jars & MySqlDriverchartahir February 17, 2012 at 10:57 PM

    Hi, Can you also add here about which jars are required to make this code work and how/where to get the MySQL Driver.

  • Error Solvedjubinpatel March 1, 2012 at 12:36 PM

    You face error in bean file,your data can not pass to database so use this bean file(Problem is in only bean file) <!-- file is here --> public class FirstExample extends Contact{ public static void main(String[] args) { Session session = null; Transaction transaction = null ; try{ SessionFactory sessionFactory = new Configuration().configure().buildSessionFactory(); session =sessionFactory.openSession(); transaction = session.beginTransaction(); transaction.begin(); //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(7); contact.setFirstName("Deepak"); contact.setLastName("Kumar"); contact.setEmail("deepak_38@yahoo.com"); session.save(contact); System.out.println("Done"); transaction.commit(); session.flush(); session.close(); } catch(Exception e){ System.out.println("error in first"+e.getMessage()); } } }

  • Error while running this programPavan April 25, 2012 at 5:20 PM

    Hi, If i use <generator class="assigned"/> in the mapping file for MYSQL database its not saving data. Instead of that i have used <generator class="native"/> which is working fine after that.

  • hibernateSANJEEV RANJAN May 4, 2012 at 1:06 PM

    thank you, now i'm albe to write the hibernate file.

  • all links to same pagekumar rajput May 29, 2012 at 5:29 PM

    why have you provided previous index and next links when they point to same web page !!

  • errorchaitya June 9, 2012 at 2:47 PM

    you need transcation object to commit the data

  • outdatedeiso June 15, 2012 at 3:28 PM

    model

  • hibernateharsha rao July 14, 2012 at 9:31 PM

    nice

  • Incomplete codeChitranshu July 25, 2012 at 12:47 PM

    This code is incomplete. To complete this code create an object of transaction class. And use commit() method. ie Transaction tr=session.beginTransaction(); tr.commit();

  • save transactionRajesh Kumar August 18, 2012 at 1:21 AM

    Running FirstExample will not insert record since transaction is not saved. The code has to be like this 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"); session.beginTransaction(); session.save(contact); tx.commit();

  • failmaktoom August 23, 2012 at 11:39 AM

    hi, i copy/paste this codes on netbeans7.2 and after build and deploy i see this messages in run (DB is: mysql5.2): run: Aug 23, 2012 10:36:11 AM org.hibernate.cfg.Environment <clinit> INFO: Hibernate 3.2.5 Aug 23, 2012 10:36:11 AM org.hibernate.cfg.Environment <clinit> INFO: hibernate.properties not found Aug 23, 2012 10:36:11 AM org.hibernate.cfg.Environment buildBytecodeProvider INFO: Bytecode provider name : cglib Aug 23, 2012 10:36:11 AM org.hibernate.cfg.Environment <clinit> INFO: using JDK 1.4 java.sql.Timestamp handling Aug 23, 2012 10:36:11 AM org.hibernate.cfg.Configuration configure INFO: configuring from resource: /hibernate.cfg.xml Aug 23, 2012 10:36:11 AM org.hibernate.cfg.Configuration getConfigurationInputStream INFO: Configuration resource: /hibernate.cfg.xml Aug 23, 2012 10:36:11 AM org.hibernate.cfg.Configuration addResource INFO: Reading mappings from resource : contact.hbm.xml Aug 23, 2012 10:36:12 AM org.hibernate.cfg.HbmBinder bindRootPersistentClassCommonValues INFO: Mapping class: roseindia.tutorial.hibernate.Contact -> CONTACT Aug 23, 2012 10:36:12 AM org.hibernate.cfg.Configuration doConfigure INFO: Configured SessionFactory: null Aug 23, 2012 10:36:12 AM org.hibernate.connection.DriverManagerConnectionProvider configure INFO: Using Hibernate built-in connection pool (not for production use!) Aug 23, 2012 10:36:12 AM org.hibernate.connection.DriverManagerConnectionProvider configure INFO: Hibernate connection pool size: 10 Aug 23, 2012 10:36:12 AM org.hibernate.connection.DriverManagerConnectionProvider configure INFO: autocommit mode: false Aug 23, 2012 10:36:12 AM org.hibernate.connection.DriverManagerConnectionProvider configure INFO: using driver: com.mysql.jdbc.Driver at URL: jdbc:mysql://localhost/hibernatetutorial Aug 23, 2012 10:36:12 AM org.hibernate.connection.DriverManagerConnectionProvider configure INFO: connection properties: {user=root, password=****} Aug 23, 2012 10:36:12 AM org.hibernate.cfg.SettingsFactory buildSettings INFO: RDBMS: MySQL, version: 5.5.20 Aug 23, 2012 10:36:12 AM org.hibernate.cfg.SettingsFactory buildSettings INFO: JDBC driver: MySQL-AB JDBC Driver, version: mysql-connector-java-5.1.18 ( Revision: tonci.grgin@oracle.com-20110930151701-jfj14ddfq48ifkfq ) Aug 23, 2012 10:36:12 AM org.hibernate.dialect.Dialect <init> INFO: Using dialect: org.hibernate.dialect.MySQLDialect Aug 23, 2012 10:36:12 AM org.hibernate.transaction.TransactionFactoryFactory buildTransactionFactory INFO: Using default transaction strategy (direct JDBC transactions) Aug 23, 2012 10:36:12 AM org.hibernate.transaction.TransactionManagerLookupFactory getTransactionManagerLookup INFO: No TransactionManagerLookup configured (in JTA environment, use of read-write or transactional second-level cache is not recommended) Aug 23, 2012 10:36:12 AM org.hibernate.cfg.SettingsFactory buildSettings INFO: Automatic flush during beforeCompletion(): disabled Aug 23, 2012 10:36:12 AM org.hibernate.cfg.SettingsFactory buildSettings INFO: Automatic session close at end of transaction: disabled Aug 23, 2012 10:36:12 AM org.hibernate.cfg.SettingsFactory buildSettings INFO: JDBC batch size: 15 Aug 23, 2012 10:36:12 AM org.hibernate.cfg.SettingsFactory buildSettings INFO: JDBC batch updates for versioned data: disabled Aug 23, 2012 10:36:12 AM org.hibernate.cfg.SettingsFactory buildSettings INFO: Scrollable result sets: enabled Aug 23, 2012 10:36:12 AM org.hibernate.cfg.SettingsFactory buildSettings INFO: JDBC3 getGeneratedKeys(): enabled Aug 23, 2012 10:36:12 AM org.hibernate.cfg.SettingsFactory buildSettings INFO: Connection release mode: auto Aug 23, 2012 10:36:12 AM org.hibernate.cfg.SettingsFactory buildSettings INFO: Maximum outer join fetch depth: 2 Aug 23, 2012 10:36:12 AM org.hibernate.cfg.SettingsFactory buildSettings INFO: Default batch fetch size: 1 Aug 23, 2012 10:36:12 AM org.hibernate.cfg.SettingsFactory buildSettings INFO: Generate SQL with comments: disabled Aug 23, 2012 10:36:12 AM org.hibernate.cfg.SettingsFactory buildSettings INFO: Order SQL updates by primary key: disabled Aug 23, 2012 10:36:12 AM org.hibernate.cfg.SettingsFactory buildSettings INFO: Order SQL inserts for batching: disabled Aug 23, 2012 10:36:12 AM org.hibernate.cfg.SettingsFactory createQueryTranslatorFactory INFO: Query translator: org.hibernate.hql.ast.ASTQueryTranslatorFactory Aug 23, 2012 10:36:12 AM org.hibernate.hql.ast.ASTQueryTranslatorFactory <init> INFO: Using ASTQueryTranslatorFactory Aug 23, 2012 10:36:12 AM org.hibernate.cfg.SettingsFactory buildSettings INFO: Query language substitutions: {} Aug 23, 2012 10:36:12 AM org.hibernate.cfg.SettingsFactory buildSettings INFO: JPA-QL strict compliance: disabled Aug 23, 2012 10:36:12 AM org.hibernate.cfg.SettingsFactory buildSettings INFO: Second-level cache: enabled Aug 23, 2012 10:36:12 AM org.hibernate.cfg.SettingsFactory buildSettings INFO: Query cache: disabled Aug 23, 2012 10:36:12 AM org.hibernate.cfg.SettingsFactory createCacheProvider INFO: Cache provider: org.hibernate.cache.NoCacheProvider Aug 23, 2012 10:36:12 AM org.hibernate.cfg.SettingsFactory buildSettings INFO: Optimize cache for minimal puts: disabled Aug 23, 2012 10:36:12 AM org.hibernate.cfg.SettingsFactory buildSettings INFO: Structured second-level cache entries: disabled Aug 23, 2012 10:36:12 AM org.hibernate.cfg.SettingsFactory buildSettings INFO: Echoing all SQL to stdout Aug 23, 2012 10:36:12 AM org.hibernate.cfg.SettingsFactory buildSettings INFO: Statistics: disabled Aug 23, 2012 10:36:12 AM org.hibernate.cfg.SettingsFactory buildSettings INFO: Deleted entity synthetic identifier rollback: disabled Aug 23, 2012 10:36:12 AM org.hibernate.cfg.SettingsFactory buildSettings INFO: Default entity-mode: pojo Aug 23, 2012 10:36:12 AM org.hibernate.cfg.SettingsFactory buildSettings INFO: Named query checking : enabled Aug 23, 2012 10:36:12 AM org.hibernate.impl.SessionFactoryImpl <init> INFO: building session factory Aug 23, 2012 10:36:13 AM org.hibernate.impl.SessionFactoryObjectFactory addInstance INFO: Not binding factory to JNDI, no JNDI name configured Aug 23, 2012 10:36:13 AM org.hibernate.tool.hbm2ddl.SchemaUpdate execute INFO: Running hbm2ddl schema update Aug 23, 2012 10:36:13 AM org.hibernate.tool.hbm2ddl.SchemaUpdate execute INFO: fetching database metadata Aug 23, 2012 10:36:13 AM org.hibernate.tool.hbm2ddl.SchemaUpdate execute INFO: updating schema Aug 23, 2012 10:36:13 AM org.hibernate.tool.hbm2ddl.TableMetadata <init> INFO: table found: hibernatetutorial.contact Aug 23, 2012 10:36:13 AM org.hibernate.tool.hbm2ddl.TableMetadata <init> INFO: columns: [id, email, lastname, firstname] Aug 23, 2012 10:36:13 AM org.hibernate.tool.hbm2ddl.TableMetadata <init> INFO: foreign keys: [] Aug 23, 2012 10:36:13 AM org.hibernate.tool.hbm2ddl.TableMetadata <init> INFO: indexes: [primary] Aug 23, 2012 10:36:13 AM org.hibernate.tool.hbm2ddl.SchemaUpdate execute INFO: schema update complete Inserting Record Done Hibernate: insert into CONTACT (FIRSTNAME, LASTNAME, EMAIL, ID) values (?, ?, ?, ?)

  • querykarunakar sarabu September 5, 2012 at 10:23 AM

    please tell me how to test this application. i cant find it in the online tutorial.

  • no commentno comment October 3, 2012 at 3:46 PM

    no comment

  • About Updation of codeamit October 29, 2012 at 11:09 PM

    Please put this lines in code. import org.hibernate.Transaction; . . . Transaction tx=session.beginTransaction(); // Add this soon after initializing session object tx.commit() // just before saving the session

  • errorReem November 17, 2012 at 10:46 PM

    when i run the code a java exception has occured any advice thanks

  • The code is amaizing dibya jyoti das November 19, 2012 at 7:07 PM

    This tutorial is very simple as well asa very effective.

  • Please answersahad November 28, 2012 at 3:54 PM

    I cant get the output by using above code.I am getting the error Could not parse mapping document from resource contact.hbm.xml Exception in thread "main" java.lang.NullPointerException at roseindia.FirstExample.main(FirstExample.java:34)

  • Need to make small correction in the given exampleBhajan January 4, 2013 at 4:37 PM

    Hi There, No doubt, your this tutorial (http://www.roseindia.net/hibernate/firstexample.shtml) is very good and informative. But when I tried to use above example as it is, It was not working. I would like to give you my updated code, You can review this and if find this relevant than please update this example. 1.) Need to create object of transaction class as below after session creation. org.hibernate.Transaction txn = session.beginTransaction(); txn.begin(); 2.) Need to commit transaction after save command as: session.save(<NAME_OF_OBJECT>); txn.commit();

  • unable to run the codevidushe April 3, 2013 at 11:17 AM

    i tried your program.its giving me the 'hibernate.cfg.xml' file not found error.while debugging, i noticed that the code after SessionFactory sessionFactory = new Configuration().configure().buildSessionFactory(); is not being executed. pls help

  • small issue with sample codejoseph April 13, 2013 at 6:07 PM

    Hey, Nice and simple article I tried your example.It works good but FirstExample.java fails to insert to database.I am using SqlServer 2005 <property name ="hibernate.dialect">org.hibernate.dialect.SQLServerDialect</property> <property name ="hibernate.connection.driver_class">com.microsoft.sqlserver.jdbc.SQLServerDriver</property> From the logs I can see that the INSERT statement is getting created fine and no exceptions are present but still no entry in database,any ideas?

  • Data is not going to be inserted in this example Dilip Voruganti April 28, 2013 at 8:45 PM

    Total example is correct but data is not going to be inserted bcoz of, Not opening Transaction. i.e.., After session =sessionFactory.openSession(); INSERT Transaction t =session.beginTransaction(); and at last say t.commit(); Then ur data will be inserted into the database.

  • Missing codeSaurabh July 10, 2013 at 1:04 AM

    In FirstExample class we need to begin the Transaction after opening the session i,e Transaction trx=session.beginTransaction(); statement after session =sessionFactory.openSession(); and commit the transaction after saving the session i,e trx.commit(); Correct code ---------------------------- package com.test; import org.hibernate.Session; import org.hibernate.SessionFactory; import org.hibernate.Transaction; import org.hibernate.cfg.Configuration; 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(); //Create new instance of Contact and set values in it by reading them from form object System.out.println("Inserting Record"); Transaction trx=session.beginTransaction(); Contact contact = new Contact(); contact.setId(3); contact.setFirstName("Deepak"); contact.setLastName("Kumar"); contact.setEmail("deepak_38@yahoo.com"); session.save(contact); trx.commit(); System.out.println("Done"); }catch(Exception e){ System.out.println(e.getMessage()); }finally{ // Actual contact insertion will happen at this step session.close(); } } }

  • test mailrambharath February 7, 2014 at 12:56 PM

    this too easy to understand for beginners.....tnks a lot.....

  • ErrorMeena Patel September 2, 2013 at 5:41 PM

    Could not parse mapping document from resource employee.hbm.xml Initial SessionFactory creation failed.org.hibernate.InvalidMappingException: Could not parse mapping document from resource employee.hbm.xml Exception in thread "main" java.lang.NullPointerException at com.hibtutorial.mypackage.StoreData.main(StoreData.java:22)

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