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【Asp.Net】 Cookies的存取删除

作者:ful1021 / 发布于2014/8/11/ 1005

Cookies的存取删除，前台使用jquery.cookie操作cookie


	/// <summary>
	/// Cookies赋值
	/// </summary>
	/// <param name="strName">主键</param>
	/// <param name="strValue">键值</param>
	/// <param name="strDay">有效天数,如果不要此参数,cookie在浏览器关闭的时候自动失效</param>
	/// <returns></returns>
	public static bool SetCookie(string strName, string strValue, int strDay = 0)
	{
	 try
	 {
	 HttpCookie Cookie = new HttpCookie(strName);
	 //Cookie.Domain = ".xxx.com";//当要跨域名访问的时候,给cookie指定域名即可,格式为.xxx.com
	 if (strDay > 0)
	 {
	 Cookie.Expires = DateTime.Now.AddDays(strDay);
	 }
	 Cookie.Value = HttpUtility.UrlEncode(strValue);
	 System.Web.HttpContext.Current.Response.Cookies.Add(Cookie);
	 return true;
	 }
	 catch
	 {
	 return false;
	 }
	}
	
	/// <summary>
	/// 读取Cookies
	/// </summary>
	/// <param name="strName">主键</param>
	/// <returns></returns>
	public static string GetCookie(string strName)
	{
	 HttpCookie Cookie = System.Web.HttpContext.Current.Request.Cookies[strName];
	 if (Cookie != null)
	 {
	 return HttpUtility.UrlDecode(Cookie.Value);
	 }
	 else
	 {
	 return null;
	 }
	}
	
	/// <summary>
	/// 删除Cookies
	/// </summary>
	/// <param name="strName">主键</param>
	/// <returns></returns>
	public static bool DelCookie(string strName)
	{
	 try
	 {
	 HttpCookie Cookie = new HttpCookie(strName);
	 //Cookie.Domain = ".xxx.com";//当要跨域名访问的时候,给cookie指定域名即可,格式为.xxx.com
	 Cookie.Expires = DateTime.Now.AddYears(-10);
	 System.Web.HttpContext.Current.Response.Cookies.Add(Cookie);
	 return true;
	 }
	 catch
	 {
	 return false;
	 }
	}

	

	示例：

	[csharp] view plaincopy在CODE上查看代码片派生到我的代码片
	SetCookie("name", "aaa", 1);//赋值，有效期为1天
	GetCookie("name");//取值

	另外：只要不给cookie设置过期时间,cookie在浏览器关闭的时候自动失效

	jQuery操作cookie的插件,大概的使用方法如下

	$.cookie('the_cookie'); //读取Cookie值
	$.cookie(&rsquo;the_cookie&rsquo;, &lsquo;the_value&rsquo;); //设置cookie的值
	$.cookie('the_cookie', 'the_value', { expires: 7 });
	$.cookie('the_cookie', 'the_value', { expires: 7, path: '/' });
	//新建一个cookie 包括有效期 路径 域名等
	$.cookie(&rsquo;the_cookie&rsquo;, &lsquo;the_value&rsquo;, {expires: 7, path: &lsquo;/&rsquo;, domain: &lsquo;jquery.com&rsquo;, secure: true});
	$.cookie(&rsquo;the_cookie&rsquo;, &lsquo;the_value&rsquo;); //新建cookie
	$.cookie(&rsquo;the_cookie&rsquo;, null); //删除一个cookie
	$.removeCookie('the_cookie');
	$.removeCookie('the_cookie', { path: '/' });

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