为什么过滤器不能被调用?不知是哪骤错了,我是在struts中用的

google_ad_width = 250; google_ad_height = 250; google_ad_format = "250x250_as"; google_color_url = "000000";

放在WEB-INF\classes\manage\hibernateUtil\CloseSessionFilter.class

public class CloseSessionFilter implements Filter {

Log logger = LogFactory.getLog(this.getClass());

// Filte配置对象

protected FilterConfig config;

public void destroy() {

// TODO Auto-generated method stub

this.config = null;

}

public void doFilter(ServletRequest arg0, ServletResponse arg1,

FilterChain arg2) throws IOException, ServletException {

// TODO Auto-generated method stub

System.out.println("filter1");

arg2.doFilter((HttpServletRequest) arg0,(HttpServletResponse) arg1);

System.out.println("filter2");

}

public void init(FilterConfig arg0) throws ServletException {

// TODO Auto-generated method stub