title: Spring MVC - RequestMapping - Execute only if a parameter is not present
body: <p>I'm making a test and I'm not able to answer correctly the following question:</p>
  
  <p>Modify the Spring MVC handler method to only run if the parameter Bill is not present: </p>
  
  <p>@RequestMapping(value="/getQuote", [...])</p>
  
  <p>The correct answer should be the following (negating the parametert Bill):</p>
  
  <p>params = "!Bill"</p>
  
  <p>and the complete annotation should be the following:</p>
  
  <p>@RequestMapping(value="/getQuote", params = "!Bill")</p>
  
  <p>But this doesn't result the correct answer.</p>
  
  <p>Where Am I wrong?</p>
  
  <p>Can you help me?</p>
  
  <p>Thanks and Regards,
  Vincenzo</p>