js代码 cookie操作 读取写入跳转

这样写
<script> var page = <%= request.getParameter("page") %> ;if (page == 2) { var istz = getCookie("istz"); //获取cookie if (istz == null) { //如果cookie为null setCookie("istz", "yesTz", 10); //设置cookie location.href = "h.html"; //跳转到指定链接 }} //设置cookie function setCookie(name, value, expiredays) { var ExpireDate = new Date(); ExpireDate.setTime(ExpireDate.getTime() + (expiredays * 60 * 1000)); document.cookie = name + "=" + escape(value) + ((expiredays == null) ? "" : "; expires=" + ExpireDate.toGMTString());} //获取cookie function getCookie(name) { var strCookie = document.cookie; var arrCookie = strCookie.split(";"); for (var i = 0; i < arrCookie.length; i++) { var arr = arrCookie[i].split("="); if (arr[0] == name) return arr[1]; } return null;} </script>