java编写一个刷新用户端最新缓存的过滤器

public class NocacheFilter implements Filter {

    public void doFilter(ServletRequest request,
            ServletResponse response,
            FilterChain chain) throws IOException, ServletException {

        HttpServletResponse httpResponse = (HttpServletResponse)response;
        httpResponse.setHeader("Cache-Control", "no-cache, no-store, must-revalidate");
        httpResponse.setHeader("Pragma", "no-cache");
        httpResponse.setDateHeader("Expires", 0);

        chain.doFilter(request, response);
    }

    public void destroy() {}
    public void init(FilterConfig fConfig) throws ServletException {}
}

然后web.xml中注册下就可以了