jQuery操作Cookie函数

发布日期:2009-11-16 10:43:04.0 发布讲师:don 浏览量:248

课程类别:IT电脑开发
学习标签: jquery Cookie 函数
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老外写的，拿过来用，这里记录下。

>
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;
    }
};

调用：

$(document).ready(function() {
$(‘#wCookies‘).click(function(){
  $.cookie(‘name‘, ‘test‘,{expires: 7});				  
});
$(‘#rCookies‘).click(function(){
  var test = $.cookie(‘name‘);
  alert (test);
});
$(‘#dCookies‘).click(function(){
	$.cookie(‘name‘, null);							  
});
});