1 //写入 2 protected void Button1_Click(object sender, EventArgs e) 3 { 4 HttpCookie cookie=new HttpCookie("MyCook");//初使化并设置Cookie的名称 5 DateTime dt=DateTime.Now; 6 TimeSpan ts = new TimeSpan(0, 0, 1,0,0);//过期时间为1分钟 7 cookie.Expires = dt.Add(ts);//设置过期时间 8 cookie.Values.Add("userid", "userid_value"); 9 cookie.Values.Add("userid2","userid2_value2"); 10 Response.AppendCookie(cookie); 11 //输出该Cookie的所有内容 12 //Response.Write(cookie.Value);//输出为:userid=userid_value&userid2=userid2_value2 13 } 14 15 //读取 16 protected void Button2_Click(object sender, EventArgs e) 17 { 18 19 // HttpCookie cokie = new HttpCookie("MyCook");//初使化 20 if (Request.Cookies["MyCook"]!=null) 21 { 22 //Response.Write("Cookie中键值为userid的值:" + Request.Cookies["MyCook"]["userid"]);//整行 23 //Response.Write("Cookie中键值为userid2的值" + Request.Cookies["MyCook"]["userid2"]); 24 Response.Write(Request.Cookies["MyCook"].Value);//输出全部的值 25 } 26 } 27 28 //修改Cookie 29 protected void Button3_Click(object sender, EventArgs e) 30 { 31 //获取客户端的Cookie对象 32 HttpCookie cok = Request.Cookies["MyCook"]; 33 34 if (cok != null) 35 { 36 //修改Cookie的两种方法 37 cok.Values["userid"] = "alter-value"; 38 cok.Values.Set("userid", "alter-value"); 39 40 //往Cookie里加入新的内容 41 cok.Values.Set("newid", "newValue"); 42 Response.AppendCookie(cok); 43 } 44 } 45 46 //删除Cookie 47 protected void Button4_Click(object sender, EventArgs e) 48 { 49 50 HttpCookie cok = Request.Cookies["MyCook"]; 51 if (cok != null) 52 { 53 if (!CheckBox1.Checked) 54 { 55 cok.Values.Remove("userid");//移除键值为userid的值 56 } 57 else 58 { 59 TimeSpan ts = new TimeSpan(-1, 0, 0, 0); 60 cok.Expires = DateTime.Now.Add(ts);//删除整个Cookie,只要把过期时间设置为现在 61 } 62 Response.AppendCookie(cok); 63 } 64 }
时间: 2024-10-06 13:10:37