比较简单，主要为了个人记忆和查询
<%@ page language="java" contentType="text/html; charset=GB18030"
pageEncoding="GB18030"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="GB18030">
<title>Insert title here</title>
</head>
<body>
<%
String username = request.getParameter("name1"); //建立Cookie
Cookie user_name = new Cookie("cookie_name", username);
response.addCookie(user_name);
out.print(username);
%>
<%
Cookie[] Cookies = request.getCookies(); //读取Cookie
if (Cookies == null) {
out.print("none any Cookie");
} else {
for (int i = 0; i < Cookies.length; i++) {
if (Cookies[i].getName().equals("cookie_name")) {
out.println(Cookies[i].getValue() + "<br>");
}
}
}
%>
<%
Cookie login = new Cookie("today", "true"); //设置Cookie的存在时间
login.setMaxAge(86400);
response.addCookie(login);
%>
<%
Cookie killMyCookie = new Cookie("mycookie", null); //删除Cookie
killMyCookie.setMaxAge(0);
killMyCookie.setPath("/");
response.addCookie(killMyCookie);
%>
</body>
</html>