title: How to change charset in struts2 to utf-8
body: <p>Hi I have testfield in which I want to put test not in English(for example into Russian) 
  but in my action class I get instead of text only <code>?????????</code>.
  I trying to write simple filter which described  <a href="https://stackoverflow.com/questions/2381891/parameters-charset-conversion-in-struts2">Parameters charset conversion in struts2</a></p>
  
  <p>but it still do not work..
  can somebody help me</p>
  
  <p><strong>update</strong> 
  I have this
  <img src="https://i.stack.imgur.com/sgelY.png" alt="enter image description here"></p>
  
  <pre><code>&lt;s:textfield key="index.login" name="login" /&gt;
  </code></pre>
  
  <p>I want to put into it test in Russian language and then send it to my action.but in my action class I get instead of text only <code>?????????</code>.to fix this problem I need to change charset into utf8 instead of win1251.</p>