<welcome-file-list>
        <welcome-file>newsPage</welcome-file>
    </welcome-file-list>

    <filter>
        <filter-name>Filter Push</filter-name>
        <filter-class>ru.spb.FilterPush</filter-class>

    </filter>

    <filter-mapping>
        <filter-name>Filter Push</filter-name>
        <servlet-name>PushNewsServlet</servlet-name>
    </filter-mapping>

public class FilterPush implements Filter {
    private String encoding;

    public void init(FilterConfig config) throws ServletException {
        // читаем из конфигурации
        encoding = config.getInitParameter("requestEncoding");

        // если не установлена - устанавливаем UTF8
        if (encoding == null)
            encoding = "UTF8";
    }

    public void doFilter(HttpServletRequest request, HttpServletResponse response, FilterChain next)
            throws IOException, ServletException {
        request.setCharacterEncoding(encoding);
        next.doFilter(request, response);
    }

    public void destroy() {
    }

    public boolean isLoggable(LogRecord record) {
        return false;
    }
}