jsp源码实例5（cookie）
2000-12-10 16:38:09 来源：WEB开发网 闂傚倸鍊搁崐鎼佸磹閹间礁纾归柟闂寸绾剧懓顪冪€ｎ亜顒㈡い鎰Г閹便劌顫滈崱妤€骞婄紓鍌氬€瑰銊╁箟缁嬫鍚嬮柛顐線缂冩洟姊婚崒娆戭槮婵犫偓闁秵鎯為幖娣妼缁愭鏌″搴′簽濞戞挸绉甸妵鍕冀椤愵澀娌梺缁樻尪閸庣敻寮婚敐澶婂嵆闁绘劖绁撮崑鎾诲捶椤撴稑浜炬慨妯煎亾鐎氾拷
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核心提示：package coreservlets;import java.io.*;import javax.servlet.*;import javax.servlet.http.*;/** Sets six cookies: three that apply only to the current* session (re
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).
* <P>
* 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) +
"<BODY BGCOLOR=\"#FDF5E6\">\n" +
"<H1 ALIGN=\"CENTER\">" + title + "</H1>\n" +
"There are six cookies associated with this page.\n" +
"To see them, visit the\n" +
"<A HREF=\"/servlet/coreservlets.ShowCookies\">\n" +
"<CODE>ShowCookies</CODE> servlet</A>.\n" +
"<P>\n" +
"Three of the cookies are associated only with the\n" +
"current session, while three are persistent.\n" +
"Quit the browser, restart, and return to the\n" +
"<CODE>ShowCookies</CODE> servlet to verify that\n" +
"the three long-lived ones persist across sessions.\n" +
"</BODY></HTML>");
}
}
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