C#开发中常用方法3------Cookie的存取

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C#中Cookie的存取

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/// <summary>
/// 创建cookie并赋值，设置cookie有效时间
/// </summary>
/// <param name="strCookieName">cookie名字</param>
/// <param name="strCookieValue">cookie值</param>
/// <param name="intDay">cookie有效天数</param>
/// <returns>布尔值</returns>
public static bool SetCookie(string strCookieName, string strCookieValue, int intDay)
{
   try
   {
      //创建一个cookie对象
      HttpCookie cookie = new HttpCookie(strCookieName);
      //设置cookie的值
      cookie.Value = strCookieValue;
      //设置cookie的有效期 或者cookie.Expires.AddDays(intDay);
      cookie.Expires = DateTime.Now.AddDays(intDay);
      System.Web.HttpContext.Current.Response.Cookies.Add(cookie);
      return true;
   }
   catch
  {
      return false;
   }
}

/// <summary>
/// 根据cookie的名字获取cookie值
/// </summary>
/// <param name="strCookieName">要获取的cookie名</param>
/// <returns>cookie值</returns>
public static string GetCookie(string strCookieName)
{
   //获取cookie
   HttpCookie cookie = HttpContext.Current.Request.Cookies[strCookieName];
   if (cookie!=null)
   {
       return cookie.Value;
   }
   else
   {
       return null;
   }
}

/// <summary>
/// 根据cookie名称，删除cookie
/// </summary>
/// <param name="strCookieName">cookie名</param>
/// <returns>布尔值 true 删除成功 false 删除失败</returns>
public static bool DeleteCookie(string strCookieName)
{
   try
   {
      HttpCookie cookie = HttpContext.Current.Request.Cookies[strCookieName];
      cookie.Expires = DateTime.Now.AddDays(-1);
      HttpContext.Current.Response.Cookies.Add(cookie);
      return true;
   }
   catch
   {
      return false;
   }
}

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jQuery中Cookie的存取

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//创建一个key为uName，值为cookievalue的cookie，有效期为3天
$.cookie("uName", "cookievalue", { expires: 3});

//读取cookie值
$.cookie("uName");

//删除cookie
$.cookie("uName", null);

注意：要记得引用两个js文件

<script src="jquery-1.11.2.js" type="text/javascript"></script>

<script src="jquery.cookie-v1.4.1.js" type="text/javascript"></script>