jQuery.cookie = function(name, value, options) { if (typeof value != 'undefined') { // name and value given, set cookie options = options || {}; if (value === null) { value = ''; options.expires = -1; } var expires = ''; if (options.expires && (typeof options.expires == 'number' || options.expires.toUTCString)) { var date; if (typeof options.expires == 'number') { date = new Date(); date.setTime(date.getTime() + (options.expires * 24 * 60 * 60 * 1000)); } else { date = options.expires; } expires = '; expires=' + date.toUTCString(); // use expires attribute, max-age is not supported by IE } document.cookie = [name, '=', encodeURIComponent(value), expires].join(''); } else { // only name given, get cookie var cookieValue = null; if (document.cookie && document.cookie != '') { var cookies = document.cookie.split(';'); for (var i = 0; i < cookies.length; i++) { var cookie = jQuery.trim(cookies[i]); // Does this cookie string begin with the name we want? if (cookie.substring(0, name.length + 1) == (name + '=')) { cookieValue = decodeURIComponent(cookie.substring(name.length + 1)); break; } } } return cookieValue; } };
放置cookie
//有cookie $.cookie('userid', userid, {expires : 7}); $.cookie('password', password, {expires : 7}); $.cookie('save', "yes", {expires : 7}); //无cookie $.cookie('username', null, {expires : 7}); $.cookie('password', null, {expires : 7}); $.cookie('save', "no", {expires : 7});
取cookie
function checkCookie(){ var save = $.cookie('save'); if(save=="yes"){ var userid = $.cookie('userid'); var password = $.cookie('password'); $("#useId").val(userid); $("#pwd").val(password); } }