org.springframework.beans.factory.BeanCreationException: Error while mapping Spring with context datasource - spring

Question

This is my spring context file
<!-- <context:property-placeholder location="classpath:jdbc.properties" />-->
<context:component-scan base-package="com.max.premcalc" />
<tx:annotation-driven transaction-manager="hibernateTransactionManager" />
<bean id="jspViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
<property name="prefix" value="/WEB-INF/view/" />
<property name="suffix" value=".jsp" />
</bean>
<jee:jndi-lookup id="dataSource" jndi-name="jdbc/inquizzitiveds"/>
<!-- <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="${database.driver}" />
<property name="url" value="${database.url}" />
<property name="username" value="${database.user}" />
<property name="password" value="${database.password}" />
</bean> -->
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="annotatedClasses">
<list>
<value>com.max.premcalc.domain.PremiumCalc</value>
<value>com.max.premcalc.domain.Inputparam</value>
<value>com.max.premcalc.domain.RiderInput</value>
<value>com.max.premcalc.domain.Rider</value>
<value>com.max.premcalc.domain.Product</value>
<value>com.max.premcalc.domain.Products</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">${hibernate.dialect}</prop>
<prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
<prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop>
</props>
</property>
</bean>
<bean id="hibernateTransactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<bean id="MainController" class="com.max.premcalc.controller.MainController" />
<bean id = "calcDao" class="com.max.premcalc.dao.CalcDaoImpl"/>
<bean id = "calcService" class="com.max.premcalc.service.CalcServiceImpl"/>
<bean id = "inputparam" class = "com.max.premcalc.domain.Inputparam"/>
But I'm getting this error :
Injection of autowired dependencies failed; nested exception is
org.springframework.beans.factory.BeanCreationException: Could not autowire field: private
com.max.premcalc.service.CalcService com.max.premcalc.controller.MainController.calcService; nested exception is
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'calcServiceImpl': Injection
of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException:
Could not autowire field: com.max.premcalc.dao.CalcDao com.max.premcalc.service.CalcServiceImpl.calcDao; nested
exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userDao':
Injection of autowired dependencies failed; nested exception is
org.springframework.beans.factory.BeanCreationException: Could not autowire method: public void
com.max.premcalc.dao.CalcDaoImpl.setSessionFactory(org.hibernate.SessionFactory); nested exception is
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in
ServletContext resource [/WEB-INF/dispatcher-servlet.xml]: Invocation of init method failed; nested exception is
org.hibernate.HibernateException: Hibernate Dialect must be explicitly set

Answer 1

You need to set the property
hibernate.dialect
In the hibernate (persistence.xml or bean declaration) configuration, the value depends on your database, for example:
Postgres: org.hibernate.dialect.PostgreSQL82Dialect
Oracle: org.hibernate.dialect.Oracle10gDialect
All posible options are listen here
For example, a sample persistence.xml looks like:
<persistence-unit>
...
<properties>
...
<property name="hibernate.dialect" value="org.hibernate.dialect.PostgreSQLDialect" />
...
</properties>
</persistence-unit>
Please, check if your properties file have the key hibernate-dialect

Answer 2

The stacktrace is pretty clear
org.hibernate.HibernateException: Hibernate Dialect must be explicitly set
Apparently hibernate cannot use the metadata to retrieve the type of database to use, as a result one must configure the hibernate dialect explicitly.