📄 repeatvisitor2.java
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package coreservlets;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
/** A variation of the RepeatVisitor servlet that uses
* CookieUtilities.getCookieValue and LongLivedCookie
* to simplify the code.
* <P>
* Taken from Core Servlets and JavaServer Pages 2nd Edition
* from Prentice Hall and Sun Microsystems Press,
* http://www.coreservlets.com/.
* © 2003 Marty Hall; may be freely used or adapted.
*/
public class RepeatVisitor2 extends HttpServlet {
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
boolean newbie = true;
String value =
CookieUtilities.getCookieValue(request, "repeatVisitor2",
"no");
if (value.equals("yes")) {
newbie = false;
}
String title;
if (newbie) {
LongLivedCookie returnVisitorCookie =
new LongLivedCookie("repeatVisitor2", "yes");
response.addCookie(returnVisitorCookie);
title = "Welcome Aboard";
} else {
title = "Welcome Back";
}
response.setContentType("text/html");
PrintWriter out = response.getWriter();
String docType =
"<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 " +
"Transitional//EN\">\n";
out.println(docType +
"<HTML>\n" +
"<HEAD><TITLE>" + title + "</TITLE></HEAD>\n" +
"<BODY BGCOLOR=\"#FDF5E6\">\n" +
"<H1 ALIGN=\"CENTER\">" + title + "</H1>\n" +
"</BODY></HTML>");
}
}
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