Connection cannot be null when 'hibernate.dialect' not set hibernate4 tomcat7

Question

I\'ve followed some tutorial in order to set up a web application using spring, hibernate to run on tomcat.

When trying to run my application I get the error \"Conne

Answer 1

Piece of code from the tutorial you mentioned:

    
    
    
        classpath:hibernate.cfg.xml
    
    
        org.hibernate.cfg.AnnotationConfiguration
    
    
        
            ${jdbc.dialect}
            true
        
    

This is where hibernate.cfg.xml was specified and, also, where the dialect was put. If you have for the session factory, you don't need it in the hibernate.cfg.xml. I would suggest looking again at that's tutorial source code and adjust your code accordingly.