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import java.util.*;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class MyServlet extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws IOException, ServletException
{
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("<HTML>");
out.println("<HEAD>");
out.println("<TITLE>");
out.println("A Web Page");
out.println("</TITLE>");
out.println("</HEAD>");
out.println("<BODY");
Cookie[] cookies = request.getCookies();
boolean foundCookie = false;
for(int i = 0; i < cookies.length; i++) {
Cookie cookie1 = cookies[i];
if (cookie1.getName().equals("color")) {
out.println("bgcolor = " + cookie1.getValue());
foundCookie = true;
}
}
if (!foundCookie) {
Cookie cookie1 = new Cookie("color", "cyan");
cookie1.setMaxAge(24*60*60);
response.addCookie(cookie1);
}
out.println(">");
out.println("<H1>Setting and Reading Cookies</H1>");
out.println("This page will set its background color using a cookie when reloaded.");
out.println("</BODY>");
out.println("</HTML>");
}
}
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Download: ServletGetSetCookie.zip( 89 k)