Notes to a newbie spring-mvc developer

  1. Activate log4j. Without it you're lost
  2. Look through the log to see if you're getting the RequestMapping through Spring.
  3. If you are not despite correct annotations, see [this post](http://www.vaannila.com/spring/spring-annotation-controller-1.html). In particular if you've got Spring Security installed, for Goodness sake, don't forget these lines:
    4. <beans:bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping">
    
<beans:bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
    
</beans:bean>
    </beans:bean>
  4. Just in case you decided to change the mappings, and you continue to see the old ones in the logs, clean and rebuild.


First published here