jquery读写cookie操作实例分析

本文实例分析了jquery读写cookie操作。分享给大家供大家参考，具体如下：

jquery cookie需要脚本文件如下：

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;

}

};

页面调用只要引进这个文件

$.cookie("name"); //根据cookie名字取到cookie值

$.cookie("name", "value");//设置cookie 名字，值

$.cookie("name", value, { expires: 7 }); //设置cookie 名字，值，生命周期等属性

$.cookie("name", null); //根据cookie名移除cookie

希望本文所述对大家jQuery程序设计有所帮助。