基于JQuery的cookie插件

2019-11-21 00:35:53

字體：大中小

來源：轉載

供稿：網友

簡單使用方法：

 
<html> 
<head> 
<title>JQuery-Cookie插件</title> 
<script type="text/javascript" src="jquery-1.4.js"></script> 
<script type="text/javascript" src="jquery.cookie.js"></script> 
</head> 
<body> 
<a href="#">設置cookie1</a><br> 
<a href="#">設置cookie2</a><br> 
<a href="#">獲取cookie</a><br> 
<a href="#">刪除cookie</a><br> 
</body> 
</html> 
<script type="text/javascript"> 
$(function(){ 
var COOKIE_NAME = 'test_cookie'; 
//設置cookie，通過時間間隔 
$('a').eq(0).click(function() { 
$.cookie(COOKIE_NAME, 'test', { path: '/', expires: 1 }); 
return false; 
}); 
// 設置cookie，到期時間 
$('a').eq(1).click(function() { 
var date = new Date(); 
date.setTime(date.getTime() + (1 * 24 * 60 * 60 * 1000)); 
$.cookie(COOKIE_NAME, 'test', { path: '/', expires: date }); 
return false; 
}); 
// 獲取 cookie 
$('a').eq(2).click(function() { 
alert($.cookie(COOKIE_NAME)); 
return false; 
}); 
// 刪除cookie 
$('a').eq(3).click(function() { 
$.cookie(COOKIE_NAME, null, { path: '/' }); 
return false; 
}); 
}); 
</script> 

插件的源代碼也很簡單：

復制代碼代碼如下:

 
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(); 
} 
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; 
} 
}; 