jsp源码实例5（cookie）_MySQL

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package coreservlets;

import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;

/** Sets six cookies: three that apply only to the current
* session (regardless of how long that session lasts)
* and three that persist for an hour (regardless of
* whether the browser is restarted).
*

* Taken from Core Servlets and JavaServer Pages
* from Prentice Hall and Sun Microsystems Press,
* http://www.coreservlets.com/.
* © 2000 Marty Hall; may be freely used or adapted.

*/

public class SetCookies extends HttpServlet {
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
for(int i=0; i<3; i++) {
// Default maxAge is -1, indicating cookie
// applies only to current browsing session.
Cookie cookie = new Cookie("Session-Cookie-" + i,
"Cookie-Value-S" + i);
response.addCookie(cookie);
cookie = new Cookie("Persistent-Cookie-" + i,
"Cookie-Value-P" + i);
// Cookie is valid for an hour, regardless of whether
// user quits browser, reboots computer, or whatever.
cookie.setMaxAge(3600);
response.addCookie(cookie);
}
response.setContentType("text/html");
PrintWriter out = response.getWriter();
String title = "Setting Cookies";
out.println
(ServletUtilities.headWithTitle(title) +
"\n" +
"

" + title + "

\n" +
"Three of the cookies are associated only with the\n" +

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