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  • asp.Net Cookie实例

    //写入
        protected void Button2_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 Button1_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);
             }
         }


       本人博客的文章大部分来自网络转载,因为时间的关系,没有写明转载出处和作者。所以在些郑重的说明:文章只限交流,版权归作者。谢谢

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  • 原文地址:https://www.cnblogs.com/wzg0319/p/1624808.html
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