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How to create emdedded H2 DB with spring(transactional) and hibernate in java desktop application?

I am trying to create a project with embedded h2 db, and using spring framework with hibernate. My database will be created in initialize time if not exist. My development platform is intellij.
Problem is that when i run the application
#Autowired
private IPersonService personService; // comes null?
here is my classes and config files.
myDB.sql:
CREATE TABLE IF NOT EXISTS personel(
id IDENTITY AUTO_INCREMENT,
name VARCHAR(100) NOT NULL,
age VARCHAR(100));
hibernate.properties:
db.driverClassName=org.h2.Driver
db.url=jdbc:h2:~/h2SpringProject/database/SpringSample;mv_store=false;mvcc=false
db.username=admin
db.password=
here is my hibernate-config.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:jdbc="http://www.springframework.org/schema/jdbc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
<context:component-scan base-package="com.springapp"/>
<context:annotation-config/>
<context:property-placeholder location="hibernate.properties"/>
<tx:annotation-driven transaction-manager="transactionManager"/>
<bean id="dataSource"
class="org.springframework.jdbc.datasource.SingleConnectionDataSource">
<property name="driverClassName" value="${db.driverClassName}"></property>
<property name="url" value="${db.url}"></property>
<property name="username" value="${db.username}"/>
<property name="password" value="${db.password}"/>
<property name="suppressClose" value="true"/>
</bean>
<jdbc:initialize-database data-source="dataSource" ignore-failures="DROPS">
<jdbc:script location="myDb.sql"/>
</jdbc:initialize-database>
<bean id="hibernateCfgProperties"
class="org.springframework.beans.factory.config.PropertiesFactoryBean">
<property name="properties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.H2Dialect</prop>
<prop key="hibernate.hbm2ddl.auto">update</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.format_sql">false</prop>
<prop key="hibernate.use_sql_comments">true</prop>
<prop key="hibernate.cache.use_second_level_cache">true</prop>
<prop key="hibernate.cache.use_query_cache">true</prop>
<prop key="hibernate.cache.region.factory_class">
org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory
</prop>
</props>
</property>
</bean>
<bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<property name="hibernateProperties" ref="hibernateCfgProperties"/>
<property name="packagesToScan" value="com.springapp.model"/>
</bean>
<bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"/>
</bean>
</beans>
Person class
#Entity
#Table(name = "personel")
public class Personel {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
#Column(name = "id")
private long id;
#Column(name = "name")
private String name;
#Column(name = "age")
private String age;
.......
An IPersonDao interface and here is implemented class
#Component
public class PersonelDaoImpl implements IPersonelDao {
#Autowired
private SessionFactory sessionFactory;
public Session getCurrentSession() {
return sessionFactory.getCurrentSession();
}
#Override
public void savePersonel(Personel personel) {
getCurrentSession().saveOrUpdate(personel);
}
#Override
public void deletePersonel(long id) {
getCurrentSession().delete(id);
}
#Override
public List<Personel> getPersonels() {
return getCurrentSession().createQuery("from Personel").list();
}
}
There is an IPersonService interface and here is implemented class
#Service("PersonelService")
public class PersonelServiceImpl implements IPersonelService {
#Autowired
private IPersonelDao personelDao;
#Override
#Transactional
public void savePersonel(Personel personel) {
personelDao.savePersonel(personel);
}
#Override
#Transactional
public void deletePersonel(long id) {
personelDao.deletePersonel(id);
}
#Override
#Transactional
public List<Personel> getPersonels() {
return personelDao.getPersonels();
}
}
here is my main class
public class MainApp {
private static ApplicationContext applicationContext;
public static void main(String[] args) {
applicationContext = new ClassPathXmlApplicationContext("hibernate-config.xml");
ForExample a = new ForExample();
a.execute();
}
}
#Component
public class ForExample {
#Autowired
private IPersonelService personelService;
public void execute(){
Personel p = new Personel();
p.setName("thats Ok!");
p.setAge("614345");
personelService.savePersonel(p);
}
}

public class MainApp {
public static ApplicationContext applicationContext;
private static IPersonelService personelService;
public static void main(String[] args) {
applicationContext = new ClassPathXmlApplicationContext("hibernate-config.xml");
personelService = applicationContext.getBean(IPersonelService.class);
Personel p = new Personel();
p.setName("thatsOK!");
p.setAge("614345");
personelService.savePersonel(p);
}
}
Because of spring does not recognise new operator in run time..

Spring/Hibernate Write operations are not allowed in read-only mode

I've read some of other questions on the same topic, but in my case I'm not actually specifying anything. What makes me really confused is I have another call that works. I don't specify any transactions so I'm not sure why this is becoming a problem.
This is what happens when I try to use xssSave() (in the service class at the bottom), but sqlInject (also in the same class) works fine. As far as I can tell these operate identically except that one works and one doesn't.
If you want to view the full code and/or check it out yourself, it's available on GitHub (https://github.com/tenmilez/WebBilly).
Spring configuration (split into 3 files):
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://www.springframework.org/schema/beans"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
<!--
<import resource="recipeasy-aspects.xml" />
-->
<import resource="webbilly-data.xml"/>
<import resource="webbilly-spring.xml"/>
<import resource="webbilly-service.xml"/>
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"></property>
<property name="prefix" value="/WEB-INF/jsp/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
<bean id="simpleUrlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
<property name="order">
<value>0</value>
</property>
<property name="mappings">
<props>
<prop key="welcome.htm">welcomeController</prop>
<prop key="sqli.htm">SQLiController</prop>
<prop key="xss.htm">XssController</prop>
</props>
</property>
</bean>
<bean id="paramResolver" class="org.springframework.web.servlet.mvc.multiaction.ParameterMethodNameResolver">
<property name="paramName" value="method"/>
<property name="defaultMethodName" value="onInitPage"/>
</bean>
<bean id="welcomeController" class="com.webbilly.web.WelcomeController"/>
<bean id="SQLiController" class="com.webbilly.web.SQLiController">
<property name="methodNameResolver" ref="paramResolver"/>
<property name="sqliServices" ref="sqliServices"/>
</bean>
<bean id="XssController" class="com.webbilly.web.XssController">
<property name="methodNameResolver" ref="paramResolver"/>
<property name="sqliServices" ref="sqliServices"/>
</bean>
</beans>
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://www.springframework.org/schema/beans"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">
<bean id="sqliServices" class="com.webbilly.service.SQLiServices">
<property name="sqliDataDAO" ref="sqliDataDAOhibernate"/>
<!--
<property name="sqliDataDAO" ref="sqliDataDAOjdbc" />
<property name="sqliDataDAO" ref="sqliDataDAOhibernate" />
-->
<property name="xssDataDAO" ref="xssDataDAO"/>
</bean>
</beans>
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://www.springframework.org/schema/beans"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">
<bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="jdbcDataSource"/>
<property name="mappingDirectoryLocations">
<value>classpath:/com/webbilly/dao/hibernate/hbm</value>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
<prop key="hibernate.format_sql">${hibernate.format_sql}</prop>
<prop key="hibernate.dialect">${database.dialect}</prop>
</props>
</property>
</bean>
<bean id="hibernateTemplate" class="org.springframework.orm.hibernate4.HibernateTemplate">
<property name="sessionFactory" ref="sessionFactory"/>
</bean>
<bean id="genericDAO" class="com.webbilly.dao.hibernate.GenericDAO"
abstract="true">
<property name="hibernateTemplate" ref="hibernateTemplate"/>
</bean>
<bean id="sqliDataDAOhibernate" parent="genericDAO">
<constructor-arg>
<value>com.webbilly.domain.SQLiData</value>
</constructor-arg>
</bean>
<bean id="xssDataDAO" parent="genericDAO">
<constructor-arg>
<value>com.webbilly.domain.XssData</value>
</constructor-arg>
</bean>
<bean id="sqliDataDAOjdbc" class="com.webbilly.dao.jdbc.SQLiDAO">
<property name="dataSource" ref="jdbcDataSource"/>
</bean>
<bean id="jdbcDataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="${database.driver}"/>
<property name="url" value="${database.url}"/>
<property name="username" value="${database.username}"/>
<property name="password" value="${database.password}"/>
<property name="connectionProperties">
<props>
<prop key="allowMultiQueries">true</prop>
</props>
</property>
</bean>
</beans>
My data objects (is there a name for these? Always referred to them as domain objects, but I'm not sure if that's widely accepted terminology).
package com.webbilly.domain;
/**
* Created by christopher on 12/12/14.
*/
public class XssData {
private int id;
private String userName;
private String message;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
}
package com.webbilly.domain;
/**
* Created by christopher on 12/3/14.
*/
public class SQLiData {
private String id;
private String value;
public String getValue() {
return value;
}
public void setValue(String value) {
this.value = value;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
}
The persistence layer
package com.webbilly.dao;
import java.util.Collection;
public interface IGenericDAO<T> {
void save(T t);
Collection<T> getAll();
T getById(int id);
void delete(int id);
}
package com.webbilly.dao.hibernate;
import com.webbilly.dao.IGenericDAO;
import org.springframework.orm.hibernate4.support.HibernateDaoSupport;
import java.util.Collection;
public class GenericDAO<T> extends HibernateDaoSupport implements IGenericDAO<T> {
/**
* ******************************************************
* ********* Accessors and private members ****************
* *******************************************************
*/
private Class<T> type;
public GenericDAO(Class<T> type) {
this.type = type;
}
public T getById(int id) {
return (T) getHibernateTemplate().get(type, id);
}
public Collection<T> getAll() {
return getHibernateTemplate().loadAll(type);
}
public void save(T t) {
getHibernateTemplate().saveOrUpdate(t);
}
public void delete(int id) {
getHibernateTemplate().delete(getById(id));
}
}
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<hibernate-mapping package="com.webbilly.domain">
<class name="SQLiData" table="sqli">
<id column="id" name="id" type="int">
<generator class="increment"/>
</id>
<property name="value" type="string">
<column name="value"/>
</property>
</class>
</hibernate-mapping>
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<hibernate-mapping package="com.webbilly.domain">
<class name="XssData" table="xss">
<id column="id" name="id" type="int">
<generator class="increment"/>
</id>
<property name="userName" type="string">
<column name="user_name"/>
</property>
<property name="message" type="string">
<column name="message"/>
</property>
</class>
</hibernate-mapping>
The service layer (it really is just one class; my application is not that big yet).
package com.webbilly.service;
import com.webbilly.dao.IGenericDAO;
import com.webbilly.domain.SQLiData;
import com.webbilly.domain.XssData;
import java.util.Collection;
/**
* Created by christopher on 12/3/14.
*/
public class SQLiServices {
private IGenericDAO<SQLiData> sqliDataDAO;
private IGenericDAO<XssData> xssDataDAO;
public void sqlInject(String str) {
SQLiData sqliData = new SQLiData();
sqliData.setValue(str);
getSqliDataDAO().save(sqliData);
}
public void xssSave(XssData data) {
xssDataDAO.save(data);
}
public Collection<XssData> getAllPosts() {
return xssDataDAO.getAll();
}
public IGenericDAO<SQLiData> getSqliDataDAO() {
return sqliDataDAO;
}
public void setSqliDataDAO(IGenericDAO<SQLiData> sqliDataDAO) {
this.sqliDataDAO = sqliDataDAO;
}
public IGenericDAO<XssData> getXssDataDAO() {
return xssDataDAO;
}
public void setXssDataDAO(IGenericDAO<XssData> xssDataDAO) {
this.xssDataDAO = xssDataDAO;
}
}

HibernateTemplate doesn't manage transactions, you need a HibernateTransactionManager instead.
The write operations need to execute within the context of a transaction, so you need to also annotate you DAO or your services with #Transactional.

Spring JpaTransactionManager with Nested transactions

I have following spring configuration.
<tx:annotation-driven transaction-manager="transactionManager" />
<bean class="org.springframework.orm.jpa.JpaTransactionManager" id="transactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory" />
<property name="nestedTransactionAllowed" value="true" />
</bean>
<bean id='entityManagerFactory'
class='org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean'>
<property name="persistenceUnitName" value="test" />
<property name='dataSource' ref='dataSource' />
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="showSql" value="true" />
<property name="databasePlatform" value="org.hibernate.dialect.MySQL5Dialect"/>
</bean>
</property>
</bean>
<bean name="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost:3306/testdb" />
<property name="username" value="test" />
<property name="password" value="test" />
</bean>
And i have created following entity.
#Entity(name="testtable")
public class Testtable implements Serializable {
private static final long serialVersionUID = 1L;
#Id
#GeneratedValue(strategy=GenerationType.AUTO)
#Column(unique=true, nullable=false)
private int testid;
#Column(length=10)
private String description;
public Testtable() {
}
public int getTestid() {
return this.testid;
}
public void setTestid(int testid) {
this.testid = testid;
}
public String getDescription() {
return this.description;
}
public void setDescription(String description) {
this.description = description;
}
}
Now I want to test the nested transaction behavior with this setup. So I have created following test class.
#TransactionConfiguration(defaultRollback=false)
#RunWith(SpringJUnit4ClassRunner.class)
#ContextConfiguration(locations = "classpath:context-test.xml")
public class TableTest {
#Autowired
private TesttableRepository testtableRepository;
#Test
#Transactional
public void testMethod()
{
Testtable entry = new Testtable();
entry.setDescription("ABC");
entry = testtableRepository.save(entry);
TestObj t = new TestObj(testtableRepository);
t.testNestedTransactional();
entry.setDescription("ABCEE");
testtableRepository.save(entry);
assertNotNull(entry.getTestid());
}
}
public class TestObj {
public TestObj(TesttableRepository testtableRepository){
this.testtableRepository = testtableRepository;
}
private TesttableRepository testtableRepository;
#Transactional(propagation=Propagation.NESTED )
public void testNestedTransactional(){
Testtable entry1 = new Testtable();
entry1.setDescription("RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR");
testtableRepository.save(entry1);
}
}
The testNestedTransactional() method in TestObj.java should fail because of database constraint violation (Max length for field description is 10). Even though this method fail I expect "ABCEE" value to be saved in database. Is this correct with nested transaction behavior? How can I achieve this goal?

The problem is that you create TestObj manually. You should do it using Spring context (declare it in context as a bean and autowire in the test).
Spring will wrap this bean in a proxy to make it transactional. In your case it is a plain old Java object without transactional behavior.

org.hibernate.MappingException: Unknown entity:

I really want to understand what is going on with my code.
I have a standalone application which uses spring and Hibernate as JPA and I am trying to run the test using a single main Class
My main class
package edu.acct.tsegay.common;
import edu.acct.tsegay.model.User;
import edu.acct.tsegay.business.IUserBusinessObject;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class App {
public static void main(String[] args) {
try {
ApplicationContext context = new ClassPathXmlApplicationContext(
"Spring3AndHibernate-servlet.xml");
IUserBusinessObject userBusinessObject = (IUserBusinessObject) context
.getBean("userBusiness");
User user = (User) context.getBean("user1");
user.setPassword("pass");
user.setUsername("tsegay");
System.out.println(user.getPassword());
userBusinessObject.delete(user);
User user2 = new User();
user2.setUsername("habest");
user2.setPassword("pass1");
System.out.println(user2.getPassword());
/*
* userBusinessObject.save(user2);
*
* User user3 = userBusinessObject.searchUserbyId("tsegay");
* System.out.println("Search Result: " + user3.getUsername());
*/
System.out.println("Success");
} catch (Exception e) {
e.printStackTrace();
}
}
}
my application context is:
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">
<!-- data source -->
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost:3306/test" />
<property name="username" value="test" />
<property name="password" value="password" />
</bean>
<!-- session factory -->
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource">
<ref bean="dataSource" />
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
<prop key="hibernate.show_sql">true</prop>
</props>
</property>
</bean>
<!-- exposed person business object -->
<bean id="userBusiness" class="edu.acct.tsegay.business.UserBusinessObject">
<property name="userDao" ref="userDao" />
</bean>
<bean id="user1" class="edu.acct.tsegay.model.User">
<property name="username" value="tse" />
<property name="password" value="pass" />
</bean>
<!-- Data Access Object -->
<bean id="userDao" class="edu.acct.tsegay.dao.UserDao">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
</beans>
My User Model is:
package edu.acct.tsegay.model;
import java.io.Serializable;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Version;
import org.hibernate.annotations.NaturalId;
#Entity
public class User implements Serializable {
/**
*
*/
private static final long serialVersionUID = 1L;
private String username;
private String password;
private Integer VERSION;
#Version
public Integer getVERSION() {
return VERSION;
}
public void setVERSION(Integer vERSION) {
VERSION = vERSION;
}
#NaturalId
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}
My DAO is:
package edu.acct.tsegay.dao;
import edu.acct.tsegay.model.User;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.orm.hibernate3.HibernateTemplate;
import org.springframework.stereotype.Repository;
#Repository
public class UserDao implements IUserDao {
private SessionFactory sessionFactory;
private HibernateTemplate hibernateTemplate;
public SessionFactory getSessionFactory() {
return sessionFactory;
}
#Autowired
public void setSessionFactory(SessionFactory sessionFactory) {
this.sessionFactory = sessionFactory;
this.hibernateTemplate = new HibernateTemplate(sessionFactory);
}
public void save(User user) {
// TODO Auto-generated method stub
// getHibernateTemplate().save(user);
this.hibernateTemplate.save(user);
}
public void delete(User user) {
// TODO Auto-generated method stub
this.hibernateTemplate.delete(user);
}
public User searchUserbyId(String username) {
// TODO Auto-generated method stub
return this.hibernateTemplate.get(User.class, username);
}
}
And this my stacktrace error when i run the program:
pass
org.springframework.orm.hibernate3.HibernateSystemException: Unknown entity: edu.acct.tsegay.model.User; nested exception is org.hibernate.MappingException: Unknown entity: edu.acct.tsegay.model.User
at org.springframework.orm.hibernate3.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:679)
at org.springframework.orm.hibernate3.HibernateAccessor.convertHibernateAccessException(HibernateAccessor.java:412)
at org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:411)
at org.springframework.orm.hibernate3.HibernateTemplate.executeWithNativeSession(HibernateTemplate.java:374)
at org.springframework.orm.hibernate3.HibernateTemplate.delete(HibernateTemplate.java:837)
at org.springframework.orm.hibernate3.HibernateTemplate.delete(HibernateTemplate.java:833)
at edu.acct.tsegay.dao.UserDao.delete(UserDao.java:34)
at edu.acct.tsegay.business.UserBusinessObject.delete(UserBusinessObject.java:30)
at edu.acct.tsegay.common.App.main(App.java:23)
Caused by: org.hibernate.MappingException: Unknown entity: edu.acct.tsegay.model.User
at org.hibernate.impl.SessionFactoryImpl.getEntityPersister(SessionFactoryImpl.java:580)
at org.hibernate.impl.SessionImpl.getEntityPersister(SessionImpl.java:1365)
at org.hibernate.event.def.DefaultDeleteEventListener.onDelete(DefaultDeleteEventListener.java:100)
at org.hibernate.event.def.DefaultDeleteEventListener.onDelete(DefaultDeleteEventListener.java:74)
at org.hibernate.impl.SessionImpl.fireDelete(SessionImpl.java:793)
at org.hibernate.impl.SessionImpl.delete(SessionImpl.java:771)
at org.springframework.orm.hibernate3.HibernateTemplate$25.doInHibernate(HibernateTemplate.java:843)
at org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:406)
... 6 more

You have to list your classes in your session factory configuration. You can have your entities auto-discovered if you are using EntityManager.
In order to use annotations with hibernate and spring, you have to use AnnotationSessionFactoryBean:
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
<property name="annotatedClasses">
<list>
<value>edu.acct.tsegay.model.User</value>
</list>
</property>
....
</bean>
Also, it is rather strange that your User entity is a spring bean. You don't need that. Hibernate entities are supposed to be created with the new operator.

I've encountered the same problem and didn't find any good answer for this
What worked for me was to declare my entity class in the persistence.xml file:
<persistence ...>
<persistence-unit ...>
<class>com.company.maenad.core.model.News</class>
<class>com.company.maenad.core.model.AdExtraInfo</class>
</persistence-unit>
</persistence>

In addition to Bozho answer, if you are using spring + hibernate with annotation then in your session factory bean you can register your bean like below:
LocalSessionFactoryBean localSessionFactoryBean = new LocalSessionFactoryBean();
localSessionFactoryBean.setDataSource(appContext.getBean(HikariDataSource.class));
localSessionFactoryBean.setAnnotatedClasses(
AppUser.class, Assignment.class
);

Hibernate does not save data into DB?

I have a form where i input details, but when i click on save it does not get saved in the database... though the table does get created.
My Contact POJO
package your.intermedix.domain;
import java.io.Serializable;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;
#Entity
#Table(name="USER")
public class Contact implements Serializable {
private static final long serialVersionUID = 1L;
private Long id;
private String name;
private String email;
private String lastname;
private String designation;
#Id
#GeneratedValue
#Column(name="USER_ID")
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
#Column(name="DESIGNATION")
public String getDesignation(){
return designation;
}
public void setDesignation(String designation){
this.designation = designation;
}
#Column(name="EMAIL")
public String getEmail(){
return email;
}
public void setEmail(String email){
this.email = email;
}
#Column(name="LASTNAME")
public String getLastname(){
return lastname;
}
public void setLastname(String lastname){
this.lastname= lastname;
}
#Column(name="FIRSTNAME")
public String getName(){
return name;
}
public void setName(String name){
this.name = name;
}
public String toString()
{
return "designation = '" + designation + "',email='"+ email +"', lastname='"+ lastname +"', name = '" + name + "'";
}
}
My Application-Context.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<!-- Turn on AspectJ #Configurable support -->
<context:spring-configured />
<context:property-placeholder location="classpath*:*.properties" />
<context:component-scan base-package="your.intermedix"/>
<context:annotation-config/>
<!-- enable the configuration of transactional behavior based on annotations -->
<tx:annotation-driven transaction-manager="txManager"/>
<!-- a PlatformTransactionManager is still required -->
<bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<!-- (this dependency is defined somewhere else) -->
<property name="dataSource" ref="myDataSource"/>
</bean>
<!-- Turn on #Autowired, #PostConstruct etc support -->
<bean class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor" />
<bean class="org.springframework.context.annotation.CommonAnnotationBeanPostProcessor" />
<bean id="mySessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
<property name="dataSource" ref="myDataSource" />
<property name="annotatedClasses">
<list>
<value>your.intermedix.domain.Contact</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.hbm2ddl.auto">create</prop>
</props>
</property>
</bean>
<bean id="myDataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://127.0.0.1:3306/spring"/>
<property name="username" value="monty"/>
<property name="password" value="indian"/>
</bean>
</beans>
I am not getting any sort of error.... in the console.
Updated code..
package your.intermedix.services;
import org.hibernate.SessionFactory;
import org.springframework.orm.hibernate3.HibernateTemplate;
import org.springframework.stereotype.Service;
import your.intermedix.domain.Contact;
import your.intermedix.services.IContact;
#Service
public class ContactSerImpl implements IContact {
private HibernateTemplate hibernateTemplate;
public void setSessionFactory(SessionFactory sessionFactory) {
this.hibernateTemplate = new HibernateTemplate(sessionFactory);
}
#Transactional
public void saveContact(Contact contact) {
System.out.println("Hello Guru contact");
System.out.println(contact);
hibernateTemplate.saveOrUpdate(contact);
}
public void hello() {
System.out.println("Hello Guru");
}
}
My Service class where i the print statements work

You need a running transaction. Spring transaction management is the way to go if using HibernateTemplate. Read the documentation. It's too long to include in an answer, but here is in short:
you need to define a transaction manager as a spring bean
you need <tx:annotation-driven />
you need to annotate your transactional methods with #Transactional

I don't know the Spring-Hibernate framework, but often when data is not written it menas it is not flushed to the databackend. What gives you
System.err.println(hibernateTemplate.getFlushMode());