Question

I followed a tutorial to create a project with Struts 2, Maven, Hibernate and Spring with a Mysql database : http://www.mkyong.com/struts2/struts-2-spring-hibernate-integration-example/

It’s working and I would like to use a Postgresql database now. For that I edited somes configurations files to remove the mysql configuration by postgresql :

• in the pom.xml :

<dependency>
<groupId>postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>9.1-901.jdbc4</version>
</dependency>

• in the database.properties :

jdbc.driverClassName=com.postgresql.jdbc.Driver
jdbc.url=jdbc:postgresql://localhost:5432/my_base
jdbc.username=...
jdbc.password=...

• in HibernateSessionFactory.xml :

<prop key="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</prop>

And here is the error in Eclipse :

GRAVE: Exception lors de l’envoi de l’évènement contexte initialisé
(context initialized) à l’instance de classe d’écoute (listener)
org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.BeanCreationException: Error
creating bean with name ‘dataSource’ defined in ServletContext
resource [/WEB-INF/classes/config/spring/DataSource.xml]: Error
setting property values; nested exception is
org.springframework.beans.PropertyBatchUpdateException; nested
PropertyAccessExceptions (1) are: PropertyAccessException 1:
org.springframework.beans.MethodInvocationException: Property
‘driverClassName’ threw exception; nested exception is
java.lang.IllegalStateException: Could not load JDBC driver class
[com.postgresql.jdbc.Driver] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1279)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1010)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:472)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
at java.security.AccessController.doPrivileged(Native Method) at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
at
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
at
org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429)
at
org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)
at
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380)
at
org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255)
at
org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199)
at
org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45)
at
org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4206)
at
org.apache.catalina.core.StandardContext.start(StandardContext.java:4705)
at
org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:840)
at
org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057)
at
org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)
at
org.apache.catalina.core.StandardService.start(StandardService.java:525)
at
org.apache.catalina.core.StandardServer.start(StandardServer.java:754)
at org.apache.catalina.startup.Catalina.start(Catalina.java:595) at
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597) at
org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289) at
org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414) Caused
by: org.springframework.beans.PropertyBatchUpdateException; nested
PropertyAccessExceptions (1) are: PropertyAccessException 1:
org.springframework.beans.MethodInvocationException: Property
‘driverClassName’ threw exception; nested exception is
java.lang.IllegalStateException: Could not load JDBC driver class
[com.postgresql.jdbc.Driver] at
org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:104)
at
org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:59)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1276)

Where is the problem ?

Thank you for your help !

Answer 1

Could not load JDBC driver class [com.postgresql.jdbc.Driver] at 

I believe the correct class name is org.postgresql.Driver