Character encoding problem on Struts

ActionServlet automatically fills the actionForm, there is no way to set character encoding after this.

We have to do character encoding before calling ActionServlet.
So we have to use <filter> before ActionServlet.

@WebFilter(filterName="/CharacterEncodingFilter", urlPatterns="/*")
public class CharacterEncodingFilter implements Filter {

    /**
     * Default constructor. 
     */
    public CharacterEncodingFilter() {
        // TODO Auto-generated constructor stub
    }

 /**
  * @see Filter#destroy()
  */
 public void destroy() {
  // TODO Auto-generated method stub
 }

 /**
  * @see Filter#doFilter(ServletRequest, ServletResponse, FilterChain)
  */
 public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
  request.setCharacterEncoding("utf-8");
  response.setContentType("text/html;charset=utf-8");
  chain.doFilter(request, response);
 }

 /**
  * @see Filter#init(FilterConfig)
  */
 public void init(FilterConfig fConfig) throws ServletException {
  // TODO Auto-generated method stub
 }

}