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  • c#如何操作cookie

    //写入
      protected void Button1_Click(object sender, EventArgs e)
      {
        HttpCookie cookie=new HttpCookie("MyCook");//初使化并设置Cookie的名称
        DateTime dt=DateTime.Now;
        TimeSpan ts = new TimeSpan(0, 0, 1,0,0);//过期时间为1分钟
        cookie.Expires = dt.Add(ts);//设置过期时间
        cookie.Values.Add("userid", "userid_value");
        cookie.Values.Add("userid2","userid2_value2");
        Response.AppendCookie(cookie);
        //输出该Cookie的所有内容
        //Response.Write(cookie.Value);//输出为:userid=userid_value&userid2=userid2_value2
      }

      //读取
      protected void Button2_Click(object sender, EventArgs e)
      {

        // HttpCookie cokie = new HttpCookie("MyCook");//初使化
        if (Request.Cookies["MyCook"]!=null)
        {
          //Response.Write("Cookie中键值为userid的值:" + Request.Cookies["MyCook"]["userid"]);//整行
          //Response.Write("Cookie中键值为userid2的值" + Request.Cookies["MyCook"]["userid2"]);
          Response.Write(Request.Cookies["MyCook"].Value);//输出全部的值
        }
      }

      //修改Cookie
      protected void Button3_Click(object sender, EventArgs e)
      {
        //获取客户端的Cookie对象
        HttpCookie cok = Request.Cookies["MyCook"];

        if (cok != null)
        {
          //修改Cookie的两种方法
          cok.Values["userid"] = "alter-value";
          cok.Values.Set("userid", "alter-value");

          //往Cookie里加入新的内容
          cok.Values.Set("newid", "newValue");
          Response.AppendCookie(cok);
        }
      }

      //删除Cookie
      protected void Button4_Click(object sender, EventArgs e)
      {

        HttpCookie cok = Request.Cookies["MyCook"];
        if (cok != null)
        {
          if (!CheckBox1.Checked)
          {
            cok.Values.Remove("userid");//移除键值为userid的值
          }
          else
          {
            TimeSpan ts = new TimeSpan(-1, 0, 0, 0);
            cok.Expires = DateTime.Now.Add(ts);//删除整个Cookie,只要把过期时间设置为现在
          }
          Response.AppendCookie(cok);
        }
      }



    模拟登录就用httpwebrequest
    HttpCookie UserCookie = new HttpCookie("")
    UserCookie.Value = "";
    UserCookie.Expires = DataTime.Now.AddMonth(1);
    HttpContext.Response.Cookies.Add (UserCookie);
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  • 原文地址:https://www.cnblogs.com/jordan2009/p/1818318.html
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