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How to set certain properties of Spring's DriverManagerDataSource?

I'm working a series of tutorial apps to go over different Java EE technologies. I'm following various tutorials and more or less stick to them. Recently, I started putting together a simple Spring CRUD webapp to store, find, modify, and delete employees in an Employee DB table. I have previously completed another, very similar app, which only used plain Java and Hibernate, and which aimed to achieve the exact same functionality. That app worked alright, so I decided to copy over the database connection settings from this old app to the new, Spring one.
Problem is, the Spring DriverManagerDataSource bean does not seem to accept setting of the same properties as the original Hibernate configuration did, for example "hibernate.hbm2ddl.auto", which I want for conveniently wiping out the DB at startup, or "defaultSchema", which Postgres requires for some reason, so I'm stuck at configuring the DB connection.
How do I get Spring to accept these properties the same as Hibernate in the old app did, and to exhibit the same behavior? Why isn't the bean accepting these particular properties in some predictable, sensible way, like there is for other properties such as "url" or "password"? Am I even supposed to be setting them, isn't there some other mechanism in Spring that takes care of the functionality that I want from the properties?
Old app config:
hibernate.cfg.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<!-- Database connection settings -->
<property name="connection.driver_class">org.postgresql.Driver</property>
<property name="connection.url">jdbc:postgresql://localhost:5432/test2</property>
<property name="connection.username">postgres</property>
<property name="connection.password">postgres</property>
<property name="hibernate.default_schema">public</property>
<property name="show_sql">true</property>
<property name="use_sql_comments">true</property>
<property name="hibernate.hbm2ddl.auto">create</property>
<mapping class="cz.bsc.hibernatetest.hibernatetutorial.domain.Book" />
<mapping class="cz.bsc.hibernatetest.hibernatetutorial.domain.Author" />
</session-factory>
</hibernate-configuration>
Part of the Spring config taken from the tutorial which I attempt to modify as described above:
spring-servlet.xml
<beans...>
<bean id="ds"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="org.postgresql.Driver"></property>
<property name="url" value="jdbc:postgresql://localhost:5432/test2"></property>
<property name="username" value="postgres"></property>
<property name="password" value="postgres"></property>
<property name="spring.jpa.hibernate.defaultSchema" value="public"></property>
<property name="spring.jpa.hibernate.show_sql" value="true"></property>
<property name="spring.jpa.hibernate.use_sql_comments" value="true"></property>
<property name="spring.jpa.hibernate.hbm2ddl.auto" value="create"></property>
</bean>
</beans>
Complete error message that my app in its current shape throws. I presume that it indicates that I'm attempting to set a property in a way that is not intended, so a syntax error of sorts.
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'empController': Unsatisfied dependency expressed through field 'dao'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dao' defined in ServletContext resource [/WEB-INF/spring-servlet.xml]: Cannot resolve reference to bean 'jt' while setting bean property 'template'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jt' defined in ServletContext resource [/WEB-INF/spring-servlet.xml]: Cannot resolve reference to bean 'ds' while setting bean property 'dataSource'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'ds' defined in ServletContext resource [/WEB-INF/spring-servlet.xml]: Error setting property values; nested exception is org.springframework.beans.NotWritablePropertyException: Invalid property 'spring.jpa.hibernate.defaultSchema' of bean class [org.springframework.jdbc.datasource.DriverManagerDataSource]: Nested property in path 'spring.jpa.hibernate.defaultSchema' does not exist; nested exception is org.springframework.beans.NotReadablePropertyException: Invalid property 'spring' of bean class [org.springframework.jdbc.datasource.DriverManagerDataSource]: Bean property 'spring' is not readable or has an invalid getter method: Does the return type of the getter match the parameter type of the setter?

Hibernates properties are not part of data-source definition.
It should defined under session-factory bean.
for example:
<beans>
<bean id="ds"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="org.postgresql.Driver"></property>
<property name="url" value="jdbc:postgresql://localhost:5432/test2"></property>
<property name="username" value="postgres"></property>
<property name="password" value="postgres"></property>
</bean>
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource" ref bean="ds" />
<property name="packagesToScan" value="db entities package name" />
<property name="hibernateProperties">
<props>
<prop key="hibernate.defaultSchema">public</prop>
<prop key="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.use_sql_comments">true</prop>
<prop key="hibernate.hbm2ddl.auto">create</prop>
</props>
</property>
</bean>
<bean id="transactionManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
</beans>

Datasource configuring in Hibernate 5, Tomcat 8

Need some clarification and helps. Especially appreciate describing general concepts or link where they are described.
So, on the hibernate website I have read the next one:
For use inside an application server, you should almost always
configure Hibernate to obtain connections from an application server
javax.sql.Datasource registered in JNDI. You will need to set at least
one of the following properties:
And I have a few question because at the moment I am really confused about all of that stuff with DataSource, DataDriver, Tomcat and Hibernate in general.
Does configuring Datasource and binding SessionFactory to the JNDI
is the same process?
If no, for what we use DataSource and for why we need to bind SessionFactory to JNDI (in general)?
Am I understood right? If we configure DataSource in hibernate.cfg.xml file we don't need to configure it in {tomcat}/conf/server.xml or {tomcat}/conf/context.xml?
What is hibernate.jndi.url? Does it is the same as hibernate.connection.url?
What is hibernate.connection.datasource? In docs I read that it is "datasource JNDI name", so if I understood right it can be any name?
From Hibernate docs I read that setting at least one of the properties hibernate.connection.datasource, hibernate.jndi.url, hibernate.jndi.class, hibernate.connection.username, hibernate.connection.password makes my app use javax.sql.Datasource registered in JNDI. So does the next conf already configured to use DataSource?
How to check that DataSource used and configured fine?
My hibernate.cfg.xml file:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="hibernate.show_sql">true</property>
<property name="hibernate.use_sql_comments">true</property>
<property name="hibernate.format_sql">true</property>
<property name="hibernate.generate_statistics">true</property>
<!--http://stackoverflow.com/questions/2067526/hibernate-connection-pool-->
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<!--For use inside an application server, you should almost always configure Hibernate to obtain connections from an application server javax.sql.Datasource registered in JNDI. You will need to set at least one of the following properties:-->
<!--hibernate.connection.datasource,hibernate.jndi.url,hibernate.jndi.class,hibernate.connection.username,hibernate.connection.password-->
<!--Datasource config-->
<property name="hibernate.connection.datasource">jdbc:mysql://localhost/easywordweb</property>
<!--<property name="hibernate.jndi.url">??????? what is it</property>-->
<!--/Datasource config-->
<!--*****************************************************************-->
<!--C3P0 config-->
<!--Hibernate will obtain and pool connections using java.sql.DriverManager if you set the 5 following properties -->
<!--hibernate.connection.driver_class,hibernate.connection.url,hibernate.connection.username,hibernate.connection.password,hibernate.connection.pool_size-->
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.url">jdbc:mysql://localhost/easywordweb</property>
<property name="hibernate.connection.username">username</property>
<property name="hibernate.connection.password">password</property>
<!--We can use a third party pool for best performance and stability, for example c3p0. Just replace the hibernate.connection.pool_size property with connection pool specific settings. This will turn off Hibernate's internal pool. For example, you might like to use c3p0. -->
<!--<property name="hibernate.connection.pool_size">140</property>-->
<property name="hibernate.c3p0.max_size">140</property>
<property name="hibernate.c3p0.min_size">5</property>
<property name="hibernate.c3p0.acquire_increment">5</property>
<!--max to cache-->
<property name="hibernate.c3p0.max_statements">50</property>
<!--The seconds a Connection can remain pooled but unused before being discarded. Zero means idle connections never expire. Hibernate default: 0-->
<property name="hibernate.c3p0.timeout">21600</property>
<!--for test, change futher-->
<property name="hibernate.c3p0.preferredTestQuery">SELECT 1;</property>
<!--at every connection checkin to verify that the connection is valid-->
<property name="hibernate.c3p0.testConnectionOnCheckout">true</property>
<!--at every connection checkout to verify that the connection is valid-->
<property name="hibernate.c3p0.testConnectionOnCheckin">true</property>
<!--/for test, change futher-->
<property name="hibernate.connection.provider_class">org.hibernate.connection.C3P0ConnectionProvider</property>
<!--/C3P0 config-->
<!--*****************************************************************-->
<property name="hibernate.c3p0.validate">true</property>
<!--c3p0 will test all idle, pooled but unchecked-out connections, every this number of seconds-->
<property name="hibernate.c3p0.idle_test_period">21000</property>
<property name="hibernate.jdbc.batch_size">20</property>
<!--Number rows to be returned if no setted-->
<property name="hibernate.jdbc.fetch_size">20</property>
<property name="hibernate.jdbc.use_get_generated_keys">true</property>
<property name="hibernate.temp.use_jdbc_metadata_defaults">false</property>
<!--FIXING: Table "...".hibernate_sequence table not found.-->
<property name="hibernate.id.new_generator_mappings">false</property>
</session-factory>
</hibernate-configuration>
Thank's everyone in advance.

In the config you have posted you are initializing the connection pool within your application.
An alternative is to delegate the creation of the database pool to your app/web server and expose it as a JNDI resource. Your application need then only specify the name of the JNDI datasource to obtain a connection.
Doing this in Tomcat is documented here:
https://tomcat.apache.org/tomcat-6.0-doc/jndi-datasource-examples-howto.html
Your hibernate.cfg.xml then looks like:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="hibernate.show_sql">true</property>
<property name="hibernate.use_sql_comments">true</property>
<property name="hibernate.format_sql">true</property>
<property name="hibernate.generate_statistics">true</property>
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<!-- The Server configured JNDI datasource -->
<property name="hibernate.connection.datasource">java:comp/env/jdbc/MyLocalDB</property>
<property name="hibernate.jdbc.batch_size">20</property>
<!--Number rows to be returned if no setted-->
<property name="hibernate.jdbc.fetch_size">20</property>
<property name="hibernate.jdbc.use_get_generated_keys">true</property>
<property name="hibernate.temp.use_jdbc_metadata_defaults">false</property>
<!--FIXING: Table "...".hibernate_sequence table not found.-->
<property name="hibernate.id.new_generator_mappings">false</property>
</session-factory>
</hibernate-configuration>

Hibernate-Could not parse mapping document from input stream

I have builded a java application(maven) to run on server.I use Eclipse Luna, Spring 4 and Hibernate 4.When I run it, I have an error:
SEVERE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF//applicationContext.xml]: Invocation of init method failed; nested exception is org.hibernate.InvalidMappingException: Could not parse mapping document from input stream
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1574)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:736)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:757)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5016)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5528)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1575)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1565)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.hibernate.InvalidMappingException: Could not parse mapping document from input stream
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processHbmXml(Configuration.java:3762)
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processHbmXmlQueue(Configuration.java:3751)
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processMetadata(Configuration.java:3739)
at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1410)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1844)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1928)
at org.springframework.orm.hibernate4.LocalSessionFactoryBuilder.buildSessionFactory(LocalSessionFactoryBuilder.java:372)
at org.springframework.orm.hibernate4.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:454)
at org.springframework.orm.hibernate4.LocalSessionFactoryBean.afterPropertiesSet(LocalSessionFactoryBean.java:439)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1633)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1570)
... 21 more
Caused by: org.hibernate.DuplicateMappingException: Duplicate class/entity mapping com.hibernate.data.Person
at org.hibernate.cfg.Configuration$MappingsImpl.addClass(Configuration.java:2835)
at org.hibernate.cfg.HbmBinder.bindRoot(HbmBinder.java:178)
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processHbmXml(Configuration.java:3759)
... 31 more
Searching similar questions on web,I thought it occurs due to lack of some hibernate dependencies and added them.But it didn't work.Now, I am out of ideas!
My project is here: https://github.com/fsel/Spring-Hibernate-JSF-MySQL-Eclipse-Integration/tree/master/Spring-Hibernate-JSF-MySQL-Example
Any help would be appreciated.
Thanks!

The Person Class is loaded twice.
In Spring configuration - applicationContext.xml file you have :
<property name="mappingResources">
<list>
<value>domain-classes.hbm.xml</value>
</list>
</property>
Also in hibernate configuration - hibernate.cfg.xml file you are loading it once again:
<mapping resource="domain-classes.hbm.xml"/>
To fix the issue, just remove one of the above entries, either from Spring configuration file or Hibernate configuration file.

Caused by: org.hibernate.DuplicateMappingException: Duplicate class/entity mapping com.hibernate.data.Person
at org.hibernate.cfg.Configuration$MappingsImpl.addClass(Configuration.java:2835)
at org.hibernate.cfg.HbmBinder.bindRoot(HbmBinder.java:178)
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processHbmXml(Configuration.java:3759)
above exception convey that there are duplicate mapping for com.hibernate.data.Person
your hinernate.cfg.xml has below code
<hibernate-configuration>
<session-factory>
<!-- Database connection settings -->
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.url">jdbc:mysql://localhost:3306/PERSONDB</property>
<property name="hibernate.connection.username">fulden</property>
<property name="hibernate.connection.password">secret_pass</property>
<!-- SQL dialect -->
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<!-- Specify session context -->
<property name="hibernate.current_session_context_class">thread</property>
<!-- Show SQL -->
<property name="show_sql">true</property>
<!-- Referring Mapping File -->
<mapping resource="domain-classes.hbm.xml"/>
</session-factory>
</hibernate-configuration>
and your applicationContext.xml has below code
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd">
<!-- Enable Spring Annotation Configuration -->
<context:annotation-config />
<!-- Scan for all of Spring components such as Spring Service -->
<context:component-scan base-package="com.spring.service"></context:component-scan>
<!-- Create Data Source bean -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost:3306/PERSONDB" />
<property name="username" value="fulden" />
<property name="password" value="secret_pass" />
</bean>
<!-- Define SessionFactory bean -->
<bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="mappingResources">
<list>
<value>domain-classes.hbm.xml</value>
</list>
</property>
<property name="configLocation">
<value>classpath:hibernate.cfg.xml</value>
</property>
</bean>
<!-- Transaction Manager -->
<bean id="transactionManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<!-- Detect #Transactional Annotation -->
<tx:annotation-driven transaction-manager="transactionManager" />
</beans>
if you closely observe both files you are duplicating hibernate mapping resource
In hibernate.cfg.xml
<mapping resource="domain-classes.hbm.xml"/>
In a applicatinContext.xml
<property name="mappingResources">
<list>
<value>domain-classes.hbm.xml</value>
</list>
</property>
solution:
removing mappingResources property from applicatinContext.xml file should resolve you problem
thank you

You do not have a constructor without arguments in Person.
Hibernate, and code in general that creates objects via reflection use
Class.newInstance() to create a new instance of your classes. This
method requires a public no-arg constructor to be able to
instantiate the object. For most use cases, providing a no-arg
constructor is not a problem.
Source :
Why does Hibernate require no argument constructor?

save is not valid without active transaction - hibernate&spring

First of all, I have searched other similar questions here before.Though, I couldn't figure out where I have mistaken.
In Eclipse, I have been building a simple Hibernate+Spring+MySQL+Maven project recently.I am having trouble at the stage of database&java connection.When I run the project, it gives the the following error:
WARN : org.hibernate.internal.util.xml.DTDEntityResolver - HHH000223:Recognized obsolete hibernate namespace http://hibernate.sourceforge.net/. Use namespace http://www.hibernate.org/dtd/ instead. Refer to Hibernate 3.6 Migration Guide!
WARN : org.hibernate.engine.jdbc.connections.internal.ConnectionProviderInitiator - HHH000181: No appropriate connection provider encountered, assuming application will be supplying connections
Transaction began Exception in thread "main" org.hibernate.HibernateException: save is not valid without active transaction
at org.hibernate.context.internal.ThreadLocalSessionContext$TransactionProtectionWrapper.invoke(ThreadLocalSessionContext.java:352)
at com.sun.proxy.$Proxy19.save(Unknown Source)
at com.test.Main.main(Main.java:33)
The main class:
package com.test;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cfg.Configuration;
import com.hibernate.data.Person;
public class Main {
public static void main(String [] args){
// Create a configuration instance
Configuration configuration = new Configuration();
// Provide configuration file
configuration.configure("hibernate.cfg.xml");
// Build a SessionFactory
SessionFactory factory = configuration.buildSessionFactory(new StandardServiceRegistryBuilder().configure().build());
// Get current session, current session is already associated with Thread
Session session = factory.getCurrentSession();
// Begin transaction, if you would like save your instances, your calling of save must be associated with a transaction
Transaction tx = session.getTransaction();
// Create person
Person newPerson = new Person();
newPerson.setFirstName("Peter");
newPerson.setLastName("Jackson");
newPerson.setGender("Male");
newPerson.setAge(30);
//Save
session.save(newPerson);
session.flush();
tx.commit();
session.close();
}
}
hbm.xml file:
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
<class table="Person" lazy="false" name="com.hibernate.data.Person" >
<id column="PERSON_ID" type="int" name="id" >
<generator class="increment"/>
</id>
<property name="firstName" column="PERSON_FIRSTNAME" type="string" />
<property name="lastName" column="PERSON_LASTNAME" type="string" />
<property name="gender" column="PERSON_GENDER" type="string" />
<property name="age" column="PERSON_AGE" type="int" />
</class>
</hibernate-mapping>
hibernate.cfg.xml file:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<!-- Database connection settings -->
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost:3306/PERSONDB</property>
<property name='connection.username'>root</property>
<property name='connection.password'>root</property>
<!-- SQL dialect -->
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<!-- Specify session context -->
<property name="hibernate.current_session_context_class">thread</property>
<!-- Show SQL -->
<property name="show_sql">true</property>
<!-- Referring Mapping File -->
<mapping resource="domain-classes.hbm.xml"/>
<mapping class="com.hibernate.data.Person"/>
</session-factory>
</hibernate-configuration>
applicationContext.xml file:
<?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:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd">
<!-- Enable Spring Annotation Configuration -->
<context:annotation-config />
<!-- Scan for all of Spring components such as Spring Service -->
<context:component-scan base-package="com.spring.service"></context:component-scan>
<!-- Create Data Source bean -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost:3306/PERSONDB" />
<property name="username" value="root" />
<property name="password" value="root" />
</bean>
<!-- Define SessionFactory bean -->
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="mappingResources">
<list>
<value>domain-classes.hbm.xml</value>
</list>
</property>
<property name="configLocation">
<value>classpath:hibernate.cfg.xml</value>
</property>
</bean>
<!-- Transaction Manager -->
<bean id="transactionManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<!-- Detect #Transactional Annotation -->
<tx:annotation-driven transaction-manager="transactionManager" />
</beans>
How can I fix this?

You forgot to begin the transaction:
Transaction tx = session.getTransaction();
tx.begin();
or, easier:
Transaction tx = session.beginTransaction();
Note that your problem is unrelated to Spring, since you're not using Spring at all in the posted code. When you do, you'll have to fix your Spring configuration: don't use classes from the hibernate3 package, since you're using hibernate4. Also, learn to use annotations and not hbm.xml files to map your entities. XML was useful in Java 1.4. But we're noaw at Java 1.8.

Spring dataSource bean definition failing

I'm trying to use Spring's JdbcTemplate to simplify my DAOs in a Java web service that is deployed in Tomcat and connects to Postgres.
I'm following Spring's documention, and I'm trying configure a DataSource in the application context file, as follows:
<?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"
xsi:schemaLocation="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">
<context:component-scan base-package="com.manta" />
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="${driverClassName}"/>
<property name="url" value="${url}"/>
<property name="username" value="${username}"/>
<property name="password" value="${password}"/>
</bean>
<context:property-placeholder location="/WEB-INF/db.properties"/>
</beans>
I have the following db.properties file in the appropriate place:
driverClassName=org.postgresql.Driver
url=jdbc:postgresql://pgprod.ecnext.com:5432/manta
username=my_user_name
password=my_password
When I try to deploy, I find the following stack trace in catalina.out:
SEVERE: Context initialization failed
org.springframework.beans.factory.BeanDefinitionStoreException:
Invalid bean definition with name 'dataSource' defined in ServletContext resource [/WEB-INF/context.xml]:
Could not resolve placeholder 'driverClassName'
at org.springframework.beans.factory.config.PlaceholderConfigurerSupport.doProcessProperties(PlaceholderConfigurerSupport.java:209)
at org.springframework.beans.factory.config.PropertyPlaceholderConfigurer.processProperties(PropertyPlaceholderConfigurer.java:220)
at org.springframework.beans.factory.config.PropertyResourceConfigurer.postProcessBeanFactory(PropertyResourceConfigurer.java:84)
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:681)
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:656)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:446)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:385)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:284)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:111)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4765)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5260)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:866)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:842)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:958)
at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1599)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:679)
Things that are NOT the problem:
The db.properties file is in the correct location.
The credentials in the db.properties are correct, and can be read in manually to connect to the database.
The context.xml file is being found by the ContextLoaderListener, and I am able to inject other dependencies.
I would very much appreciate any suggestions as to what could cause this. I'm using Spring 3.1.1, and Tomcat 7.0.26.

You probably have multiple <context:property-placeholder ... > in your project which each create a new instance of the underlying object, and is a doorway to pains...
I prefer using the following declaration for loading property files:
<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>classpath:db-config.properties</value>
</list>
</property>
<property name="ignoreUnresolvablePlaceholders" value="true" />
</bean>

Drop the leading slash from your location (i.e. location="WEB-INF/db.properties" ) or better yet change it to classpath:
location="classpath:db.properties"

use org.springframework.jdbc.datasource.DriverManagerDataSource
instead of org.apache.commons.dbcp.BasicDataSource

Use ignore-unresolvable="true" in you application context. Default value is 'fales' you need to set it 'true' so pass on the key to any others in the context that have not yet visited.
<context:property-placeholder ignore-unresolvable="true" location="/WEB-INF/application.properties" />
<context:property-placeholder ignore-unresolvable="true" location="/WEB-INF/dbcp.properties"/>

Make sure you have the maven dependency properly, Sping-core and Spring-context dependencies should be present in your project.
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version></version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version></version>
</dependency>