首页 > 代码库 > js中cookie的添加,删除,查询总结

js中cookie的添加,删除,查询总结

function addCookie(objName,objValue,objHours){//添加cookie var str = objName + "=" + escape(objValue); if(objHours > 0){//为0时不设定过期时间,浏览器关闭时cookie自动消失 var date = new Date(); var ms = objHours*3600*1000; date.setTime(date.getTime() + ms); str += "; expires=" + date.toGMTString(); } document.cookie = str; alert("添加cookie成功"); } function getCookie(objName){//获取指定名称的cookie的值 var arrStr = document.cookie.split("; "); for(var i = 0;i < arrStr.length;i ++){ var temp = arrStr[i].split("="); if(temp[0] == objName) return unescape(temp[1]); } } function delCookie(name){//为了删除指定名称的cookie,可以将其过期时间设定为一个过去的时间 var date = new Date(); date.setTime(date.getTime() - 10000); document.cookie = name + "=a; expires=" + date.toGMTString(); } function allCookie(){//读取所有保存的cookie字符串 var str = document.cookie; if(str == ""){ str = "没有保存任何cookie"; } alert(str); } function $(m,n){ return document.forms[m].elements[n].value; } function add_(){ var cookie_name = $("myform","cookie_name"); var cookie_value = http://www.mamicode.com/$("myform","cookie_value"); var cookie_expireHours = $("myform","cookie_expiresHours"); addCookie(cookie_name,cookie_value,cookie_expireHours); } function get_(){ var cookie_name = $("myform","cookie_name"); var cookie_value = http://www.mamicode.com/getCookie(cookie_name); "myform","cookie_name"); delCookie(cookie_name); alert("删除成功"); }

js中cookie的添加,删除,查询总结