Three methods of cookie operation: cookie operation

Three methods of cookie operation: cookie operation

1. jquery. cookie. js

This article has been written in detail:

Http://www.cnblogs.com/afuge/archive/2013/07/03/3169048.html

2. Native js operation cookie

Jquery. cookie. js generally causes cookie incompatibility issues and requires native js.

<script language=javascript>   // Obtain the coolie Value function cookie(name){        var cookieArray=document.cookie.split( "; " ); // Obtain the split cookie name value pair     var cookie= new Object();        for (var i= 0 ;i<cookieArray.length;i++){           var arr=cookieArray[i].split( "=" );       // Separate names and values        if (arr[ 0 ]==name) return unescape(arr[ 1 ]); // If the cookie is specified, its value is returned.     }       return "" ; }   function delCookie(name) // Delete the cookie {     document.cookie = name+ "=;expires=" +( new Date( 0 )).toGMTString(); }  function getCookie(objName){ // Obtain the cookie value of the specified name      var arrStr = document.cookie.split( "; " );      for (var i = 0 ;i < arrStr.length;i ++){       var temp = arrStr[i].split( "=" );          if (temp[ 0 ] == objName) return unescape(temp[ 1 ]);     } }  function addCookie(objName,objValue,objHours){      // Add cookie      var str = objName + "=" + escape(objValue);      if (objHours > 0 ){                               // The expiration time is not set for the last time. When the browser is closed, the cookie will automatically disappear.          var date = new Date();          var ms = objHours* 3600 * 1000 ;          date.setTime(date.getTime() + ms);          str += "; expires=" + date.toGMTString();     }     document.cookie = str; }  function SetCookie(name,value) // Two parameters: one is the cookie name and the other is the value. {       var Days = 30 ; // This cookie will be saved for 30 days      var exp = new Date();    //new Date("December 31, 9998");      exp.setTime(exp.getTime() + Days* 24 * 60 * 60 * 1000 );      document.cookie = name + "=" + escape (value) + ";expires=" + exp.toGMTString(); }  function getCookie(name) // Cookies Function {      var arr = document.cookie.match( new RegExp( "(^| )" +name+ "=([^;]*)(;|$)" ));       if (arr != null ) return unescape(arr[ 2 ]); return null ; }  function delCookie(name) // Delete the cookie {      var exp = new Date();      exp.setTime(exp.getTime() - 1 );      var cval=getCookie(name);      if (cval!= null ) document.cookie= name + "=" +cval+ ";expires=" +exp.toGMTString(); } </script>

3. server-side Processing

/// <Summary>
/// Store the clicked value in the Cookie
/// </Summary>
Private void SetCookieValue (HttpContext context, string dic, string cookieName, string keyName)
{
HttpCookie cookie = new HttpCookie (cookieName); // initialize and set the Cookie name
If (context. Request. Cookies [cookieName]! = Null)
{
Cookie = context. Request. Cookies [cookieName];
If (cookie. Values. Count> 0 & cookie. Values. GetValues (keyName )! = Null & cookie. Values. GetValues (keyName). Length> 0)
{
Remove (cookieName, keyName );
}
}
TimeSpan ts = new TimeSpan (0, 3, 0, 0, 0); // The expiration time is 3 hours.
Cookie. Expires = DateTime. Now. Add (ts); // set the expiration time
Cookie. Values. Add (keyName, dic );
Context. Response. AppendCookie (cookie );
// NCookieUtil. SetCookie (keyName, dic );
}
/// <Summary>
/// Extract the clicked value from the Cookie
/// </Summary>
Public string GetClickValue (HttpContext context, string cookieName, string keyName)
{
String userName = "";
If (context. Request. Cookies [cookieName]! = Null)
{
If (context. Request. Cookies [cookieName] [keyName]! = Null)
{
UserName = context. Request. Cookies [cookieName] [keyName]. ToString ();
}
}
// UserName = NCookieUtil. GetCookie (keyName );
Return userName;
}
/// <Summary>
/// Remove the key specified in the cookie. If the last key is used, the cookie is removed.
/// </Summary>
Public static void Remove (string cookieName, string keyName)
{
HttpCookie cookie = HttpContext. Current. Request. Cookies [cookieName];
If (cookie! = Null)
{
If (cookie. Values. Count> 0)
{
If (cookie. Values. Count = 1)
{
// If the last key is used, the cookie is removed; otherwise, a null value is added.
Cookie. Values. Remove (HttpUtility. UrlEncode (keyName ));
Cookie. Expires = DateTime. Now. AddDays (-1 );
}
Else
{
Cookie. Values. Remove (HttpUtility. UrlEncode (keyName ));
}
HttpContext. Current. Response. Cookies. Add (cookie );
}
}
}

In fact, the second method is recommended for these three methods!