Perfect code for cookies under Asp.net

CopyCode The Code is as follows: using system;
Using system. Web;
Namespace moosoft. OA. Public
{
/// <Summary>
/// Cookie help class
/// </Summary>
Public class cookieshelper
{
# Region obtain cookie
/// <Summary>
/// Obtain the cookie value
/// </Summary>
/// <Param name = "cookiename"> </param>
/// <Returns> </returns>
Public static string getcookievalue (string cookiename)
{
Return getcookievalue (cookiename, null );
}
/// <Summary>
/// Obtain the cookie value
/// </Summary>
/// <Param name = "cookiename"> </param>
/// <Param name = "key"> </param>
/// <Returns> </returns>
Public static string getcookievalue (string cookiename, string key)
{
Httprequest request = httpcontext. Current. request;
If (request! = NULL)
Return getcookievalue (request. Cookies [cookiename], key );
Return "";
}
/// <Summary>
/// Obtain the Cookie's subkey Value
/// </Summary>
/// <Param name = "cookie"> </param>
/// <Param name = "key"> </param>
/// <Returns> </returns>
Public static string getcookievalue (httpcookie cookie, string key)
{
If (cookie! = NULL)
{
If (! String. isnullorempty (key) & cookie. haskeys)
Return cookie. Values [Key];
Else
Return cookie. value;
}
Return "";
}
/// <Summary>
/// Obtain the cookie
/// </Summary>
/// <Param name = "cookiename"> </param>
/// <Returns> </returns>
Public static httpcookie getcookie (string cookiename)
{
Httprequest request = httpcontext. Current. request;
If (request! = NULL)
Return request. Cookies [cookiename];
Return NULL;
}
# Endregion
# Region Delete cookie
/// <Summary>
/// Delete a cookie
/// </Summary>
/// <Param name = "cookiename"> </param>
Public static void removecookie (string cookiename)
{
Removecookie (cookiename, null );
}
/// <Summary>
/// Delete the cookie subkey
/// </Summary>
/// <Param name = "cookiename"> </param>
/// <Param name = "key"> </param>
Public static void removecookie (string cookiename, string key)
{
Httpresponse response = httpcontext. Current. response;
If (response! = NULL)
{
Httpcookie cookie = response. Cookies [cookiename];
If (cookie! = NULL)
{
If (! String. isnullorempty (key) & cookie. haskeys)
Cookie. Values. Remove (key );
Else
Response. Cookies. Remove (cookiename );
}
}
}
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/// <Param name = "value"> </param>
Public static void setcookie (string cookiename, string key, string value)
{
Setcookie (cookiename, key, value, null );
}
/// <Summary>
/// Set the cookie value
/// </Summary>
/// <Param name = "key"> </param>
/// <Param name = "value"> </param>
Public static void setcookie (string key, string value)
{
Setcookie (Key, null, value, null );
}
/// <Summary>
/// Set the cookie value and expiration time
/// </Summary>
/// <Param name = "key"> </param>
/// <Param name = "value"> </param>
/// <Param name = "expires"> </param>
Public static void setcookie (string key, string value, datetime expires)
{
Setcookie (Key, null, value, expires );
}
/// <Summary>
/// Set the cookie expiration time
/// </Summary>
/// <Param name = "cookiename"> </param>
/// <Param name = "expires"> </param>
Public static void setcookie (string cookiename, datetime expires)
{
Setcookie (cookiename, null, null, expires );
}
/// <Summary>
/// Set cookie
/// </Summary>
/// <Param name = "cookiename"> </param>
/// <Param name = "key"> </param>
/// <Param name = "value"> </param>
/// <Param name = "expires"> </param>
Public static void setcookie (string cookiename, string key, string value, datetime? Expires)
{
Httpresponse response = httpcontext. Current. response;
If (response! = NULL)
{
Httpcookie cookie = response. Cookies [cookiename];
If (cookie! = NULL)
{
If (! String. isnullorempty (key) & cookie. haskeys)
Cookie. Values. Set (Key, value );
Else
If (! String. isnullorempty (value ))
Cookie. value = value;
If (expires! = NULL)
Cookie. expires = expires. value;
Response. setcookie (cookie );
}
}
}
# Endregion
# Region add cookie
/// <Summary>
/// Add cookie
/// </Summary>
/// <Param name = "key"> </param>
/// <Param name = "value"> </param>
Public static void addcookie (string key, string value)
{
Addcookie (New httpcookie (Key, value ));
}
/// <Summary>
/// Add cookie
/// </Summary>
/// <Param name = "key"> </param>
/// <Param name = "value"> </param>
/// <Param name = "expires"> </param>
Public static void addcookie (string key, string value, datetime expires)
{
Httpcookie cookie = new httpcookie (Key, value );
Cookie. expires = expires;
Addcookie (cookie );
}
/// <Summary>
/// Add as Cookie. values set
/// </Summary>
/// <Param name = "cookiename"> </param>
/// <Param name = "key"> </param>
/// <Param name = "value"> </param>
Public static void addcookie (string cookiename, string key, string value)
{
Httpcookie cookie = new httpcookie (cookiename );
Cookie. Values. Add (Key, value );
Addcookie (cookie );
}
/// <Summary>
/// Add as a cookie set
/// </Summary>
/// <Param name = "cookiename"> cookie name </param>
/// <Param name = "expires"> expiration time </param>
Public static void addcookie (string cookiename, datetime expires)
{
Httpcookie cookie = new httpcookie (cookiename );
Cookie. expires = expires;
Addcookie (cookie );
}
/// <Summary>
/// Add as Cookie. values set
/// </Summary>
/// <Param name = "cookiename"> </param>
/// <Param name = "key"> </param>
/// <Param name = "value"> </param>
/// <Param name = "expires"> </param>
Public static void addcookie (string cookiename, string key, string value, datetime expires)
{
Httpcookie cookie = new httpcookie (cookiename );
Cookie. expires = expires;
Cookie. Values. Add (Key, value );
Addcookie (cookie );
}
/// <Summary>
/// Add cookie
/// </Summary>
/// <Param name = "cookie"> </param>
Public static void addcookie (httpcookie cookie)
{
Httpresponse response = httpcontext. Current. response;
If (response! = NULL)
{
// Specify whether client scripts can be accessed [false by default]
Cookie. HTTPOnly = true;
// Specify a uniform path, which can be accessed through memory
Cookie. Path = "/";
// Configure cross-origin so that all other second-level domain names can be accessed.
// Cookie. Domain = "chinesecoo.com ";
Response. appendcookie (cookie );
}
}
# Endregion
}
}