title: difference between routing and controllers on symfony2
body: <p>Hy, I'm really not sure if it's ok to ask this here but i wanna know...</p>
  
  <p>is there a difference between routing and controllers on symfony2?</p>
  
  <p>How should I code my app if I want 2 modules like:</p>
  
  <ul>
  <li>intro</li>
  <li>blog</li>
  </ul>
  
  <p>should I add both as a routing and a controller? or can I code it as one routing and two controllers?</p>
  
  <p>thanks for the orientation!</p>
  
  <p>regards.</p>
  
  <p>Ok thanks, to clarify what I'm thinking is if I have a large project with tons of different pages it's mean that I should do tons of different routings? </p>