jQuery的Cookie操作插件
jopen
10年前
jQuery的cookie插件
// jQuery.cookie.js jQuery.cookie = function(name, value, options) { if (typeof value != 'undefined') { options = options || {}; if (value === null) { value = ''; options = $.extend({}, options); 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(); } var path = options.path ? '; path=' + (options.path) : ''; var domain = options.domain ? '; domain=' + (options.domain) : ''; var secure = options.secure ? '; secure' : ''; document.cookie = [name, '=', encodeURIComponent(value), expires, path, domain, secure].join(''); } else { 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]); if (cookie.substring(0, name.length + 1) == (name + '=')) { cookieValue = decodeURIComponent(cookie.substring(name.length + 1)); break; } } } return cookieValue; } };
1、设置cookie的值,比如我们要设置变量名为userid对应值为123的cookie,代码如下:
$.cookie('userid','123');
2、新建一个cookie,并设置cookie的有效期 路径 域名等,代码如下:
$.cookie('userid, '123', {expires: 7, path: '/', domain: 'jquery.com', secure: true});
注意:如果去掉后面{}的参数,新建后将以默认设置生效。
3、删除cookie,即把对应cookie值置为null,代码如下:
$.cookie('userid', null);
4、读取cookie,如读取变量名为userid的cookie值,代码如下:
var uId= $.cookie('userid');