title: what classpath do in web.xml?
body: <p>I come across this code in my web.xml but I don't understand what it does.</p>
  
  <pre class="lang-xml prettyprint-override"><code>&lt;context-param&gt;
     &lt;param-name&gt;contextConfigLocation&lt;/param-name&gt;
     &lt;param-value&gt;classpath:my-main-spring.xml&lt;/param-value&gt;
  &lt;/context-param&gt;
  </code></pre>
  
  <p>May I know what classpath do in web.xml? Where can I find more reference or reading material on this thing?</p>