ExtJS 中用js 操作cookie的方法-ExtJS 专栏

cookie.js文件

偶尔发现ExtJS中有操作cookie的js方法，拿来给大家分享下。  
  
var Cookies = {};  
Cookies.set = function(name, value){  
     var argv = arguments;  
     var argc = arguments.length;  
     var expires = (argc > 2) ? argv[2] : null;  
     var path = (argc > 3) ? argv[3] : "/";  
     var domain = (argc > 4) ? argv[4] : null;  
     var secure = (argc > 5) ? argv[5] : false;  
     document.cookie = name + "=" + escape (value) +  
       ((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +  
       ((path == null) ? "" : ("; path=" + path)) +  
       ((domain == null) ? "" : ("; domain=" + domain)) +  
       ((secure == true) ? "; secure" : "");  
};  
  
Cookies.get = function(name){  
    var arg = name + "=";  
    var alen = arg.length;  
    var clen = document.cookie.length;  
    var i = 0;  
    var j = 0;  
    while(i < clen){  
        j = i + alen;  
        if (document.cookie.substring(i, j) == arg)  
            return Cookies.getCookieVal(j);  
        i = document.cookie.indexOf(" ", i) + 1;  
        if(i == 0)  
            break;  
    }  
    return null;  
};  
  
Cookies.clear = function(name) {  
  if(Cookies.get(name)){  
    document.cookie = name + "=" +  
    "; expires=Thu, 01-Jan-70 00:00:01 GMT";  
  }  
};  
  
Cookies.getCookieVal = function(offset){  
   var endstr = document.cookie.indexOf(";", offset);  
   if(endstr == -1){  
       endstr = document.cookie.length;  
   }  
   return unescape(document.cookie.substring(offset, endstr));  
};

示例：

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">  
<html>  
  <head>  
    <title>OperateCookie.html</title>  
      
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">  
    <meta http-equiv="description" content="this is my page">  
    <meta http-equiv="content-type" content="text/html; charset=UTF-8">  
    <script type="text/javascript" src="cookie.js"></script>  
    <script type="text/javascript">  
        function set() {  
            Cookies.set("name", "tom");  
            Cookies.set("sex", "男");  
        }   
          
        function get() {  
            alert(Cookies.get("name"));  
            alert(Cookies.get("sex"));  
        }   
          
        function clear(s) {  
            Cookies.clear(s);  
        }   
    </script>  
  </head>  
    
  <body>  
    <input type="button" value="  set  " onclick="set()"/>  
    <input type="button" value="  get  " onclick="get()"/>  
    <input type="button" value=" clear sex " onclick="clear("sex")"/>  
    <input type="button" value=" clear name " onclick="clear("name")"/>  
  </body>  
</html>

可以参考：http://blog.csdn.net/IBM_hoojo/archive/2010/07/02/5709282.aspx