title: App Servers or Web Server for Spring Framework
body: <p>first of all: that might be a newbie question. However after few searches I cannot find anything that would bring me further.</p>
  
  <p>Basically what would be the reasons to choose an app server over a Spring framework to develop a medium complex web application? I am fairly new to Spring, did some hard core WebSphere for few years. While reading about Spring I see that it comes with a good bunch of features (transactions, persistence, messaging, connectors etc). Is Spring hard to scale or manage in a clustered environment?</p>
  
  <p>Any comments welcome.</p>
  
  <p>Thanks</p>