<%@ page import="java.util.SimpleTimeZone" %> <%@ page import="java.util.Date" %> <%@ page import="java.text.SimpleDateFormat" %><%-- Created by IntelliJ IDEA. User: Administrator Date: 2019/6/27 Time: 8:51 To change this template use File | Settings | File Templates. --%> <%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>$Title$</title> </head> <body> $END$ <form action="#" method="post"> <input type="text" name="admin" ><hr/> <input type="password" name="password" ><hr/> <input type="submit" value="LinkStart"> </form> <% DATE DATE = new new DATE (); the SimpleDateFormat SDF = new new the SimpleDateFormat ( " HH: mm: SS " ); // get current system time String nowtime = sdf.format (DATE); // this time to a String // setting a cookie, which is named lasttime, the value of the system time of type String cookies C = new new cookies ( " lastTime " , nowtime); // Cookie add this to the response response.addCookie (C); // the response of All cookie will fall out into a full array tm engage in a cookie named cs cookies cs [] = request.getCookies (); Tag Boolean = to false ; // // traverse the array cookie, which attention determination conditions IF ( null = CS && cs.length>! 0 ) { for (C1 cookies: CS) { // Once lastTime called a cookie is found, the IF (c1.getName () the equals (. " lastTime " )) { Tag = to true ; // output of the last access time OUT .write ( " the time of our last visit is: " + c1.getValue ()) ; BREAK } ; } } IF (! Tag) { OUT .write ( " You are the first visit to this site " ); } %> </ body> </ HTML>