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import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.util.*;
public class MyServlet extends HttpServlet {
Hashtable accesses = new Hashtable();
public void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
res.setContentType("text/html");
PrintWriter out = res.getWriter();
String remoteUser = req.getRemoteUser();
if (remoteUser == null) {
out.println("Welcome!");
}
else {
out.println("Welcome, " + remoteUser + "!");
Date lastAccess = (Date) accesses.get(remoteUser);
if (lastAccess == null) {
out.println("This is your first visit!");
}
else {
out.println("Your last visit was " + accesses.get(remoteUser));
}
if (remoteUser.equals("YourFirendName")) {
out.println("Shall we play a game?");
}
accesses.put(remoteUser, new Date());
}
}
}
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Download: ServletGetRemoteUserAndWelcome.zip( 89 k)