JS写的Cookie类

  1 < script language = " JScript " >  
  2 function  Cookie(delim){ 
  3      this ._Cookie = []; 
  4      this .Load = function (){ 
  5          if (document.cookie.indexOf( " ; " ) !=- 1 ){ 
  6              var  _sp,_name,_tp,_tars,_tarslength; 
  7              var  _item = document.cookie.split( " ;  " ); 
  8              var  _itemlength = _item.length; 
  9              while (_itemlength > 0 ){ 
 10                 _sp = _item[ -- _itemlength].split( " = " ); 
 11                 _name = _sp[ 0 ]; 
 12                 _tp = _sp[ 1 ].split( " , " ); 
 13                 _tars = _tp.slice( 1 ,_tp.length); 
 14                  this ._Cookie[_name] = []; 
 15                  this ._Cookie[_name] = _tars; 
 16                  this ._Cookie[_name][ " timeout " ] = _tp[ 0 ]; 
 17                 } 
 18              return   true ; 
 19             } 
 20          return   false ; 
 21         } 
 22      this .Save = function (){ 
 23          var  _str,_ars,_mars,_marslength,timeout,i,key; 
 24          for (key  in   this ._Cookie){ 
 25              if ( ! this ._Cookie[key]) return ; 
 26             _str = []; 
 27             _mars = CookieClass._Cookie[key]; 
 28             _marslength = _mars.length; 
 29              for (i = 0 ;i < _marslength;i ++ )_str[_str.length] = escape(_mars[i]); 
 30             document.cookie = key + " = " + _mars[ " timeout " ] + (_str.length > 0 ? " , " : "" ) + _str + (_mars[ " timeout " ] == 0 ? "" : " ;expires= " + new  Date(parseInt(_mars[ " timeout " ])).toGMTString()); 
 31             } 
 32          
 33         } 
 34      this .GetCookieCount = function (){ 
 35          var  _length = 0 ,key; 
 36          for (key  in   this ._Cookie)_length ++ ; 
 37          return  _length; 
 38         } 
 39      this .Create = function (name,days){ 
 40         days = days ? days: 0 ; 
 41          if ( ! this ._Cookie[name]) this ._Cookie[name] = []; 
 42          this ._Cookie[name][ " timeout " ] = days != 0 ? new  Date().getTime() + parseInt(days) * 86400000 : 0 ; 
 43         } 
 44      this .Modify = function (name,days){ 
 45          this .Create(name,days); 
 46         } 
 47      this .GetTime = function (name){ 
 48          return   new  Date(parseInt( this ._Cookie[name][ " timeout " ])); 
 49         } 
 50      this .Delete = function (name){ 
 51          this .Create(name, 0 ); 
 52         } 
 53      this .AddItem = function (name,value){ 
 54          this ._Cookie[name][ this ._Cookie[name].length] = value; 
 55         } 
 56      this .DelItem = function (name,index){ 
 57          var  _ttime = this ._Cookie[name][ " timeout " ]; 
 58          this ._Cookie[name] = this ._Cookie[name].slice( 0 ,index).concat( this ._Cookie[name].slice(parseInt(index) + 1 , this ._Cookie[name].length)); 
 59          this ._Cookie[name][ " timeout " ] = _ttime; 
 60         } 
 61      this .GetCount = function (name){ 
 62          return   this ._Cookie[name].length; 
 63         } 
 64      this .GetItem = function (name,index){ 
 65          return   this ._Cookie[name][index]; 
 66         } 
 67     } 
 68 </ script >  
 69 < script language = " JScript " >  
 70 var  CookieClass = new  Cookie(); 
 71 if ( ! CookieClass.Load()){ 
 72     CookieClass.Create( " Pass " , 1 ); 
 73     CookieClass.AddItem( " Pass " , " Ps1 " ); 
 74     CookieClass.AddItem( " Pass " , " Ps2 " ); 
 75     CookieClass.AddItem( " Pass " , " Ps3 " ); 
 76     CookieClass.AddItem( " Pass " , " Ps4 " ); 
 77     CookieClass.DelItem( " Pass " , 1 ); 
 78     CookieClass.Save(); 
 79     } 
 80 alert( " Cookie过期时间: " + CookieClass.GetTime( " Pass " ).toLocaleString()); 
 81 alert(document.cookie); 
 82 </ script >  
 83      < script >  
 84 function  eyunCookie() 
 85   { this .key = "" ; // 初始化key。 
 86     this .value = "" ; // 初始化key's value。 
 87     this .expires = 0 ; // 初始化cookie的有效时间，单位毫秒。 
 88       this .init = function () // 对象初始化 
 89                  { this .key = "" ; 
 90                  this .value = "" ; 
 91                  this .expires = 0 ; 
 92                               } 
 93     this .set = function (key,value,expires) // 设置cookie 
 94               { if ( this .key == "" ) this .key = key; 
 95                               if ( this .value == "" ) this .value = value; 
 96                               if ( this .expires <= 0 ) this .expires = expires; 
 97                               if ( this .key == "" || typeof ( this .key) != " string " ) 
 98                  {alert( " 请先设置欲保存的cookie名称！ " ); 
 99                                    this .init(); 
100                    return   false ; 
101                  } 
102                 if ( this .key.match( / [,; ] / )) 
103                  {alert( " cookie名称中不能包含“,”、“;”或空格！ " ); 
104                                    this .init(); 
105                    return   false ; 
106                  } 
107                 if ( this .value.toString().match( / [,; ] / ) || typeof ( this .value) == " undefined " ) 
108                  {alert( " cookie值中不能包含“,”、“;”或空格！ " ); 
109                                    this .init(); 
110                    return   false ; 
111                  } 
112                 if ( this .expires <= 0 || typeof ( this .expires) != " number " ) 
113                  {alert( " 请先正确设置cookie的有效时间！ " ); 
114                                    this .init(); 
115                    return   false ; 
116                  } 
117                 var  cookie = document.cookie; 
118                 if (cookie.indexOf( this .key + " = " ) !=- 1 ) 
119                  { if ( ! confirm( " 欲保存的cookie名称已经存在，是否要进行替换？ " )) 
120                                     { this .init(); 
121                                           return   false ; 
122                                         }                     
123                  } 
124                 var  dt = new  Date(); 
125                dt.setTime(dt.getTime() + this .expires); 
126                              document.cookie = this .key + " = " + this .value + " ;expires= " + dt.toGMTString(); 
127                               this .init(); 
128                 return   true ; 
129               } 
130     this .get = function (key) // 取得名为key的cookie的值 
131               { if (key == "" || key.match( / [,; ] / )) 
132                  {alert( " 请正确设置欲查找的cookie名称！ " ) 
133                    return   false ; 
134                  } 
135                 var  cookie = document.cookie; 
136                 var  start = cookie.indexOf(key + " = " ); 
137                 if (start ==- 1 ) 
138                  {alert( " 欲查找的cookie不存在！ " ) 
139                    return   false ; 
140                  } 
141                 var  end = cookie.indexOf( " ; " ,start); 
142                               if (end ==- 1 ) 
143                                end = cookie.length; 
144                 var  getCookie = cookie.substring(start + key.length + 1 ,end); 
145                alert( " cookie： " + key + " 的值为 " + getCookie); 
146                 return  getCookie; 
147               } 
148     this .showAll = function (){alert( " 共有以下cookie对：\n " + document.cookie.split( " ; " ).toString().replace( / , / g, " \n " ));} // 显示所有cookie 
149     this .del = function (key) // 删除名为key的cookie 
150               { if (key == "" || key.match( / [,; ] / )) 
151                  {alert( " 请正确设置欲删除的cookie名称！ " ) 
152                    return   false ; 
153                  } 
154                               var  dt = new  Date(); 
155                dt.setTime(dt.getTime()); 
156                              document.cookie = key + " =eyunDelete;expires= " + dt.toGMTString(); 
157                               this .init(); 
158                 return   true ; 
159               } 
160     this .destroy = function () // 销毁所有cookie 
161                     { var  dt = new  Date(); 
162                    dt.setTime(dt.getTime()); 
163                                       while (document.cookie != "" ) 
164                                        document.cookie = document.cookie + " ;expires= " + dt.toGMTString(); 
165                                       this .init(); 
166                                       return   true  
167                                     } 
168   } 
169 var  cookieTest = new  eyunCookie() 
170 function  settest() 
171 {cookieTest.key = " test "  
172  cookieTest.value = " ok "  
173  cookieTest.expires = 31536000000  
174  cookieTest.set() 
175 } 
176 </ script >  
177 < input type = button onclick = cookieTest.showAll() value = read >< input type = button onclick = " cookieTest.set('a','test',31536000000) "  value = setA >< input type = button onclick = " settest(); "  value = setTest >< input type = button onclick = " cookieTest.destroy() "  value = clear >< input type = button onclick = cookieTest.get( " test " ) value = gettest >< input type = button onclick = cookieTest.get( " a " ) value = geta >< input type = button onclick = cookieTest.set( " test " , 1 , 31536000000 ) value = resetTest >< input type = button onclick = cookieTest.del( " test " ) value = delTest >