JavaScript设置、获取、清除单值和多值cookie的方法

废话不多说了，直接给大家贴代码了。

具体代码如下：

var CookieUtil = (function () {
  var Cookie = function () {
    // 获取单值cookie
    this.get = function(name) {
      var start = document.cookie.indexOf(encodeURIComponent(name)) ;
      var end = document.cookie.indexOf(';', start) ;
      if(end == -) {
        end = document.cookie.length;
      }
      return decodeURIComponent(document.cookie.substring(start+name.length+,end));
    };
    // 设置单值cookie
    this.set = function(name, value, expires, path, domain, secure) {
      var cookieText = encodeURIComponent(name) + "=" + encodeURIComponent(value);
      // 设置默认过期时间为七天
      if(expires == undefined) {
        var date = new Date();
        date.setTime(date.getTime() + ****);
        expires = date ;
      }
      if(expires instanceof Date) {
        cookieText += "; expires=" + expires.toGMTString();
      }
      if(path != undefined) {
        cookieText += "; path=" + path;
      }
      if(domain != undefined) {
        cookieText += "; domain" + domain;
      }
      if(secure != undefined) {
        cookieText += "; secure";
      }
      document.cookie = cookieText;
    };
    // 清除单值cookie
    this.unset = function(name, path, domain, secure) {
      this.set(name, '', new Date(), path, domain, secure );
    };
    // 设置多值cookie
    this.setAll = function(name, subCookies, expires, path, domain, secure) {
      var cookieText = ";" + encodeURIComponent(name) + "=",
      arr = new Array();
      for(var attr in subCookies) {
        arr.push([encodeURIComponent(attr)] + ":" + encodeURIComponent(subCookies[attr]));
      }
      this.set(name, arr.join('&'), expires, path, domain, secure);
    };
    // 获取多值cookie
    this.getAll = function(name) {
      var obj = {};
      var arr = this.get(name).split('&');
      for(var i = , len = arr.length; i < len; i++) {
        var tmpArr = arr[i].split(':');
        obj[decodeURIComponent(tmpArr[])] = decodeURIComponent(tmpArr[]);
      }
      return obj;
    };
    // 获取多值cookie的子cookie
    this.getSub = function(name, subname) {
      var obj = this.getAll(name);
      return obj[subname];
    };
    // 清除指定的多值cookie
    this.unsetAll = function(name,path,domain,secure) {
      this.unset(name, '', new Date(), path, domain, secure);
    };
    // 清除指定多值cookie的子cookie
    this.unsetSub = function(name, subname,path, domain, secure) {
      var obj = this.getAll(name);
      delete obj[subname];
      this.setAll(name, obj, null, path, domain, secure);
    };
  };
  return new Cookie();
})();

 以上代码就是本文给大家介绍JavaScript设置、获取、清除单值和多值cookie的方法，有哪里不清楚的地方欢迎给我留言。