Spring Hibernate Exception for PostgressSQL Dilect - spring

Question

I am new to hibernate and Spring and looking to get a simple example working. Here is my spring xml configuration
<?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"
default-autowire="byType">
<bean id="duke" class="com.springinaction.springidol.Juggler">
<constructor-arg value="15" />
</bean>
<bean id="kenny" class="com.springinaction.springidol.Instrumentalist">
<property name="song" value="Jingle Bells" />
</bean>
<bean id="sonet29" class="com.springinaction.springidol.Sonnet29" />
<bean id="stage" class="com.springinaction.springidol.Stage"
factory-method="getInstance" />
<bean id="saxophone" class="com.springinaction.springidol.Saxophone" />
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
<property name="driverClassName" value="org.postgresql.Driver" />
<property name="url" value="jdbc:postgresql://ec2-21-21-214-251.compute-1.amazonaws.com:5432/d7zxdletq2mmv'" />
<property name="username" value="eqwosdacrklhxpq" />
<property name="password" value="wkAasO8d-hdr2hGoQXYadbjMKhGR" />
<property name="initialSize" value="1" />
<property name="maxActive" value="1" />
</bean>
<bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="packagesToScan" value="com.springinaction.springidol.models" />
<property name="hibernateProperties">
<props>
<prop key="dialect">org.hibernate.dialect.PostgreSQLDialect</prop>
</props>
</property>
</bean>
</beans>
My pom.xml dependencies are following
<properties>
<spring.version>3.1.1.RELEASE</spring.version>
</properties>
<dependencies>
<!-- Spring framework -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency> <!-- Used for Hibernate4 LocalSessionFactoryBean -->
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- AOP dependency -->
<dependency>
<groupId>cglib</groupId>
<artifactId>cglib</artifactId>
<version>2.2.2</version>
</dependency>
<!-- Persistence Management -->
<dependency> <!-- Apache BasicDataSource -->
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.2.2</version>
</dependency>
<dependency> <!-- Hibernate -->
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>4.1.3.Final</version>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>9.2-1002-jdbc4</version>
</dependency>
</dependencies>
My application is a simple command line application.
Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [com/springinaction/springidol/testing.xml]: Invocation of init method failed; nested exception is org.hibernate.HibernateException: Connection cannot be null when 'hibernate.dialect' not set
What am i doing wrong. I would like to add that my models directory is empty.
Kind Regards

Answer 1

In the part that you define Hibernate properties, it should be like the following. All keys should be prefixed with hibernate.:
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</prop>
</props>
</property>