Mega Code Archive
Client auto refresh
<![CDATA[
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
public class AutoServlet extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, java.io.IOException {
//client browser will request the page every 60 seconds
HttpSession session = request.getSession();
Long times = (Long) session.getAttribute("times");
if (times == null)
session.setAttribute("times", new Long(0));
long temp = 1;
if (times != null)
temp = (times.longValue()) + 1;
if (temp < 5)
response.addHeader("Refresh", "15");
response.setContentType("text/html");
java.io.PrintWriter out = response.getWriter();
out.println("<html><head><title>Client Refresh</title></head><body>");
//More HTML or dynamic content
out.println("You've viewed this page " + temp + " times.");
session.setAttribute("times", new Long(temp));
out.println("</body></html>");
} //end doGet
}
]]>