Tuesday, March 17, 2015
Some Exceptions coming while Create Maven project with hibernate
Below i am describing some of the exceptions and error which might come while you are trying to build project with hibernate annotation.
In maven i have used below dependency
org.hibernate
hibernate-core
4.3.8.Final
org.hibernate
hibernate-annotations
3.5.6-Final
org.hibernate
hibernate-commons-annotations
3.3.0.ga
junit
junit
4.8.1
we have created dto class UserDetails.java (dto.user.UserDetails)
below is the hibernate.cfg.xml configuration file.
false
com.mysql.jdbc.Driver
root123
jdbc:mysql://localhost:3306/test1
root
org.hibernate.dialect.MySQLDialect
true
create
If you can see above, we have include "com.common.Stock" for mapping and we have not defined this class in the project. So this will lead to below error.
Before that below is our test code
------
public class hibernate {
public static void main(String[] args) {
UserDetails user = new UserDetails();
user.setUserId(1);
user.setUserName("First User");
// create session factory - one object- get session from SessionFactory
// need configuration to build sessionFactory
// new Configuration().configure()
// u need to have hibernate.cfg.xml in default place resources
SessionFactory sessionFactory = new Configuration().configure()
.buildSessionFactory();
Session session = sessionFactory.openSession();
session.beginTransaction();
session.save(user);
session.getTransaction().commit();
session.close();
}
}
-------------------------------
Exception in thread "main" org.hibernate.MappingException: Unable to load class [ com.common.Stock] declared in Hibernate configuration
mysql
mysql-connector-java
5.1.9
--------------
It will work fine and you will have below out in the eclipse. Note : we have used "create"\
create where this will lead to drop exist table and create every time runs.
Table will have same name as DTO. ie: table name=Userdetails fields=userId,Username and userId will be primary
----------------------------------
Mar 17, 2015 1:38:07 PM org.hibernate.annotations.common.reflection.java.JavaReflectionManager
INFO: HCANN000001: Hibernate Commons Annotations {4.0.5.Final}
Mar 17, 2015 1:38:07 PM org.hibernate.Version logVersion
INFO: HHH000412: Hibernate Core {4.3.8.Final}
Mar 17, 2015 1:38:07 PM org.hibernate.cfg.Environment
INFO: HHH000206: hibernate.properties not found
Mar 17, 2015 1:38:07 PM org.hibernate.cfg.Environment buildBytecodeProvider
INFO: HHH000021: Bytecode provider name : javassist
Mar 17, 2015 1:38:07 PM org.hibernate.cfg.Configuration configure
INFO: HHH000043: Configuring from resource: /hibernate.cfg.xml
Mar 17, 2015 1:38:07 PM org.hibernate.cfg.Configuration getConfigurationInputStream
INFO: HHH000040: Configuration resource: /hibernate.cfg.xml
Mar 17, 2015 1:38:07 PM org.hibernate.internal.util.xml.DTDEntityResolver resolveEntity
WARN: HHH000223: Recognized obsolete hibernate namespace http://hibernate.sourceforge.net/. Use namespace http://www.hibernate.org/dtd/ instead. Refer to Hibernate 3.6 Migration Guide!
Mar 17, 2015 1:38:07 PM org.hibernate.cfg.Configuration doConfigure
INFO: HHH000041: Configured SessionFactory: null
Mar 17, 2015 1:38:08 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
WARN: HHH000402: Using Hibernate built-in connection pool (not for production use!)
Mar 17, 2015 1:38:08 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH000401: using driver [com.mysql.jdbc.Driver] at URL [jdbc:mysql://localhost:3306/test1]
Mar 17, 2015 1:38:08 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH000046: Connection properties: {user=root, password=****}
Mar 17, 2015 1:38:08 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH000006: Autocommit mode: false
Mar 17, 2015 1:38:08 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000115: Hibernate connection pool size: 20 (min=1)
Mar 17, 2015 1:38:13 PM org.hibernate.dialect.Dialect
INFO: HHH000400: Using dialect: org.hibernate.dialect.MySQLDialect
Mar 17, 2015 1:38:13 PM org.hibernate.engine.jdbc.internal.LobCreatorBuilder useContextualLobCreation
INFO: HHH000423: Disabling contextual LOB creation as JDBC driver reported JDBC version [3] less than 4
Mar 17, 2015 1:38:14 PM org.hibernate.engine.transaction.internal.TransactionFactoryInitiator initiateService
INFO: HHH000399: Using default transaction strategy (direct JDBC transactions)
Mar 17, 2015 1:38:14 PM org.hibernate.hql.internal.ast.ASTQueryTranslatorFactory
INFO: HHH000397: Using ASTQueryTranslatorFactory
Mar 17, 2015 1:38:17 PM org.hibernate.tool.hbm2ddl.SchemaExport execute
INFO: HHH000227: Running hbm2ddl schema export
Hibernate: drop table if exists UserDetails
Hibernate: create table UserDetails (userId integer not null, userName varchar(255), primary key (userId))
Mar 17, 2015 1:38:19 PM org.hibernate.tool.hbm2ddl.SchemaExport execute
INFO: HHH000230: Schema export complete
Hibernate: insert into UserDetails (userName, userId) values (?, ?)
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