求助。。。为什么一加入过滤器包中所有网页打开全部报404错误？

为什么一加入过滤器包中所有网页打开全部报404错误？没加之前都可以用的
这是配置文件

Tianna
com.pratice.Tianna

count
5000



Tianna
*.jsp

    这是我的过滤器
        public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
    // TODO Auto-generated method stub
    // place your code here
    count++;
    HttpServletRequest req=(HttpServletRequest)request;
    ServletContext context=req.getSession().getServletContext();
    context.setAttribute("count",count);
    // pass the request along the filter chain
    chain.doFilter(request, response);
    // pass the request along the filter chain
    return;
}

/**
 * @see Filter#init(FilterConfig)
 */
public void init(FilterConfig fConfig) throws ServletException {
    // TODO Auto-generated method stub
    String param=fConfig.getInitParameter("count");
    count=Integer.valueOf(param);
    System.out.println("caonima="+param);
}
 错误的原因是The requested resource is not available
 求大神解救

配置文件是这个

楼主解决问题了吗？是怎么解决的啊