C#使用Cookie方法

 //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(001,0,0);//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(-1000);
        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);
    }
  }

 

            HttpCookie addCookie = new HttpCookie("mycookie");
            
//添加cookie的key值
            addCookie.Values.Add("name""hsj");

            var cookie 
= Request.Cookies["mycookie"];
            
if (cookie != null && cookie.HasKeys)
            {
                
//获取cookie中key的两种方法
                var name1 = cookie["name"];
                var name2 
= cookie.Values["name"];
                
if(name1!="hsj")
                {
                    
//设置cookie中key的两种方法
                    cookie.Values["name"= "zhangsan";
                    cookie.Values.Set(
"name","lishi");
                }
            }
            
//更新cookie中现有的值
            Response.SetCookie(cookie);
            
//将cookie添加到http respose中
            Response.AppendCookie(addCookie);

 

 

 

posted on 2011-08-31 21:09  viste_happy  阅读(1776)  评论(0编辑  收藏  举报