javascript創(chuàng)建cookie、讀取cookie

    本文內(nèi)容分為兩個部分進(jìn)行學(xué)習(xí)，分別介紹了javascript創(chuàng)建cookie、javascript讀取cookie的具體實現(xiàn)方法，供大家學(xué)習(xí)，具體內(nèi)容如下
    一、創(chuàng)建Cookie
    document.cookie = 'key=value'; 
    有特殊字符 使用encodeURIComponent() 進(jìn)行編碼
    document.cookie = 'user='+encodeURIComponent('郭錢;'); 
    讀取時 使用decodeURIComponent()
    例如：　　
    document.cookie = 'name=guoqian';
    document.cookie = 'age=24';
    document.cookie = 'address=hunan';
    document.cookie = 'user='+encodeURIComponent('郭錢;'); 
    自定義一個創(chuàng)建cookie方法
    function SetCookie(name, value, expires, path, domain, secure) {
     var today = new Date();
     today.setTime(today.getTime());
     if(expires) { expires *= 86400000; }
     var expires_date = new Date(today.getTime() + (expires));
     document.cookie = name + "=" + escape(value)
      + (expires ? ";expires=" + expires_date.toGMTString() : "")
      + (path ? ";path=" + path : "")
      + (domain ? ";domain=" + domain : "")
      + (secure ? ";secure" : "");
    }
    二、獲取cookie
    使用字符串方式
    function getCookieByString(cookieName){
     var start = document.cookie.indexOf(cookieName+'=');
     if (start == -1) return false;
     start = start+cookieName.length+1;
     var end = document.cookie.indexOf(';', start);
     if (end == -1) end=document.cookie.length;
     return document.cookie.substring(start, end);
    }
    使用數(shù)組方式
    function getCookieByArray(name){
     var cookies = document.cookie.split(';');
     var c;
     for(var i=0; i<cookies.length ; i++){
      c = cookies[i].split('=');
      if (c[0].replace(' ', '') == name) {
       return c[1];
      }
     }
    }
    var r = decodeURIComponent(getCookieByArray('user'));
    alert(r);
    以上就是本文的全部內(nèi)容，希望對大家的學(xué)習(xí)有所幫助。