jQuery cookie

最新推荐文章于 2025-01-05 06:04:24 发布

zhangqiulong220

最新推荐文章于 2025-01-05 06:04:24 发布

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分类专栏： jquey 文章标签： jQuery IE ViewUI

本文链接：https://blog.youkuaiyun.com/zhangqiulong220/article/details/83522789

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 jQuery.cookie = function(name, value, options) {  
 
    if (typeof value != 'undefined') { // name and value given, set cookie  
 
        options = options || {};  
 
        if (value === null) {  
 
            value = '';  
 
            options = $.extend({}, options); // clone object since it's unexpected behavior if the expired property were changed  
 
            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  
 
        }  
 
        // NOTE Needed to parenthesize options.path and options.domain  
 
        // in the following expressions, otherwise they evaluate to undefined  
 
        // in the packed version for some reason...  
 
        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 { // 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;  
 
    }  
 
 42};
 
====================================
 
  1jQuery操作cookie的插件,大概的使用方法如下 
 
$.cookie('the_cookie'); //读取Cookie值  
 
$.cookie('the_cookie', 'the_value'); //设置cookie的值  
 
$.cookie('the_cookie', 'the_value', {expires: 7, path: '/', domain: 'jquery.com', secure: true});//新建一个cookie 包括有效期 路径 域名等  
 
$.cookie('the_cookie', 'the_value'); //新建cookie  
 
$.cookie('the_cookie', null); //删除一个cookie