title: Replacing Struts2 with spring mvc
body: <p>I've seen plenty of questions about the difference between Struts2 and Spring MVC. But my question is the following:</p>
  
  <p>I have a large-scale web app that needs reworking and its based on Struts2. 
  What I want to do is integrate Hibernate + Spring + Spring Security + Potentially Spring DM ( since we want to make it as modular as possible). </p>
  
  <p>Now as you can see its already a lot of reworking, so I am wondering IF in case I leave Struts2 (to reduce a tiny bit my rework) would this cause a significant perfromance issue in the future?</p>
  
  <p>My question is mainly a continuation the <a href="https://stackoverflow.com/questions/2883459/migrating-from-struts2-to-spring-mvc">question</a> asked by others before. However what I am interested in is not if its possible, more like what would cost in terms of performance if I keep Struts2.</p>
  
  <p>Thanks,</p>