import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
public class TestLogin extends HttpServlet {
static final boolean debug = false;
public void doGet (HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException
{
// Set the content type of the response etc.
resp.setContentType ("text/html");
PrintWriter out = resp.getWriter ();
out.println ("
Visit Count");
// During debugging, it helps to print out the parameters in the response.
if (debug) {
printParams (out, req);
}
// Write out the action, since that's common to all.
// CHANGE TO YOUR PORT NUMBER!
out.println ("");
out.flush();
}
public void doPost (HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException
{
// We need to implement POST because the forms are written as such.
doGet (req, resp);
}
void handleLoginPage (PrintWriter out, String userName)
{
out.println ("Hello " + userName + "! Choose from these options: ");
// The two buttons.
out.println ("");
out.println ("");
// Write out the extracted username:
out.println ("");
out.println ("");
}
void handleMenuPage (PrintWriter out, String userName, HttpServletRequest req)
{
// Check which button was pressed:
String timeButtonPressed = req.getParameter ("Time");
out.println (userName + ", ");
if (timeButtonPressed != null) {
// Time event.
Date d = new Date ();
out.println ("the date/time is: " + d + ".");
}
else {
// Fortune event.
String fortune = "";
if ( (int)userName.charAt(0) % 2 == 0) {
fortune = "go out, meet people. Tomorrow is going to be great for you.";
}
else {
fortune = "stay at home. Tomorrow is going to be a lousy day for you.";
}
out.println (fortune);
}
}
void handleError (PrintWriter out)
{
out.println ("Enter username: ");
out.println ("");
out.println ("");
}
// For debugging:
void printParams (PrintWriter out, HttpServletRequest req)
{
out.println ("
Request parameters:
");
Enumeration e = req.getParameterNames();
while (e.hasMoreElements()) {
String name = (String) e.nextElement();
String value = req.getParameter (name);
if (value != null)
out.println ("
name=[" + name + "] value=[" + value + "]");
else
out.println ("
name=[" + name + "] did not have a value");
}
out.println ("