Java tutorial
import java.util.*; import java.io.*; import javax.servlet.*; import javax.servlet.http.*; import java.security.*; public class MyServlet implements Filter { public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException { GregorianCalendar calendar = new GregorianCalendar(); Date date1 = new Date(); calendar.setTime(date1); int hour = calendar.get(Calendar.HOUR_OF_DAY); if (hour < 9 || hour > 17) { chain.doFilter(request, response); } else { response.setContentType("text/html"); PrintWriter out = response.getWriter(); out.println("<HTML>"); out.println("<HEAD>"); out.println("<TITLE>"); out.println("Get Back to Work!"); out.println("</TITLE>"); out.println("</HEAD>"); out.println("<BODY>"); out.println("<H1>Get Back to Work!</H1>"); out.println("Sorry, that resource is not available now."); out.println("</BODY>"); out.println("</HTML>"); } } public void destroy() { } public void init(FilterConfig filterConfig) { } }