title: How to keep track of some user data without displaying it in the URL
body: <p>I'm developing a web app with two languages, German and English. I have implemented searching on my webpage, and I want to keep track of the user's locale when searching.</p>
  
  <p>How can I achieve this:</p>
  
  <pre><code>http://localhost:8080/user/search?search=pax?lang=de
  </code></pre>
  
  <p>instead of:</p>
  
  <pre><code>http://localhost:8080/user/search?search=pax
  </code></pre>
  
  <p>In my form I have:</p>
  
  <pre><code>action="/user/search"
  </code></pre>
  
  <p>I tried </p>
  
  <pre><code>action="&lt;spring:message code="user.search.movie.link"/&gt;
  
  user.search.movie.link = /user/search or /user/search?lang=de 
  </code></pre>
  
  <p>but it doesn't work.</p>