public class EncodingFilter implements Filter {

@Override
public void destroy() {
// TODO Auto-generated method stub

}

@Override
public void doFilter(ServletRequest req, ServletResponse resp,
FilterChain chain) throws IOException, ServletException {
// TODO Auto-generated method stub
HttpServletRequest request=(HttpServletRequest)req;
HttpServletResponse response=(HttpServletResponse)resp;

request.setCharacterEncoding("UTF-8");
response.setContentType("text/html;charset=UTF-8");

chain.doFilter(req, resp);

}

@Override
public void init(FilterConfig filterConfig) throws ServletException {
// TODO Auto-generated method stub

}
}

filter>
 filter-name>EncodingFilter/filter-name>
 filter-class>pers.filter.EncodingFilter/filter-class>
 /filter>



filter-mapping>
 filter-name>EncodingFilter/filter-name>
 url-pattern>/*/url-pattern>
 /filter-mapping>