JSP：Cookie的建立，讀取，設定時期和刪除
阿新 • • 發佈：2018-12-31
比較簡單，主要為了個人記憶和查詢
<%@ 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(); //讀取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"); //設定Cookie的存在時間 login.setMaxAge(86400); response.addCookie(login); %> <% Cookie killMyCookie = new Cookie("mycookie", null); //刪除Cookie killMyCookie.setMaxAge(0); killMyCookie.setPath("/"); response.addCookie(killMyCookie); %> </body> </html>