cookie
cookie的重要字段
[name][value][domain][path][expires][httponly][secure]
domain默认是本域;
path默认是目标界面的路径。例如guiqing.com/admin/login.html页面通过javascript来设置一个cookie,那么path值就是/admin/。那么guiqing/other/index.html的界面就无法获得
guiqing.com/admin/login.html设置的cookie了,除非用iframe
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>cookieb</title> </head> <body> <button type="button" onclick="setCookie()">设置cookie</button> <button type="button" onclick="setCookie1()">设置cookie</button> <button type="button" onclick="getCookie()">获取cookie</button> <script> window.onload = function(){ var iframeEle = document.createElement("iframe"); iframeEle.src = "http://127.0.0.1:8080/cookie1/a.html"; document.getElementsByTagName('body')[0].appendChild(iframeEle); iframeEle.onload = function(){ var childDom = iframeEle.contentDocument || iframeEle.contentWindow.document; alert(childDom.cookie); } } function setCookie(){ document.cookie="guiqing=cookieB"; } function setCookie1(){ document.cookie="guiqing=cookieB1"; } function getCookie(){ var guiqing = document.cookie; alert(guiqing); } </script> </body> </html>
httpOnly是指仅在HTTP层面上传输的cookie,客户端脚本就无法读写该cookie了
secure指的是设置了secure标志的cookie仅在HTTPS层面上安全传输,如果是http的,就不会带上这个cookie。
本地cookie和内存cookie
内存cookie在浏览器关掉后就没了
本地存储主要包括: 本地cookie,localStorage,Flash Cookie