cookie归根结底就是一个字符串吗?一个按钮的点击事件生成cookie
protected void Button_Click(object sender, EventArgs e)
{
HttpCookie mycookie = new HttpCookie("test");
mycookie.Values.Add("mytest", "ok");
mycookie.Expires.AddSeconds(60);
Response.Cookies.Add(mycookie);
}JS生成cookie
function setCookie() {
document.cookie = "test=A=2";
}显示也分两种:
.net:
protected void Button2_Click(object sender, EventArgs e)
{
string res = "";
for (int i = 1; i < Request.Cookies.Count; i++)
{
res += Request.Cookies[i].Values.ToString();
}
lab.Text = res;
}
JS显示:
function showcookie() {
var mycookie = document.cookie;
alert(decodeURIComponent(mycookie));
}先用后台方法生成这个cookie 再用js生成这个cookie 然后显示 生成的两个cookie都会显示
先用js生成cookie再用后台方法生成 只显示js生成的cookie
是不是.net对cookies添加时会先遍历原有的cookie如果有就不添加了?但我认为应该是覆盖才对啊。另外后台方法让lab显示cookie时,后台生成的cookie可以正常显示,但是js生成cookie显示的是一串英文和数字
而js显示都是可以的
-----------------------------------
另,我在后台生成三个cookie,然后js里alert(document.cookie)
出现:
mycookie1=x=0;
mycookie2=x=1&y=2;
mycookie3=a=1&b=2&c=3;
现在我想删除mycookie2里的y=2这项最后得到的为
mycookie1=x=0;
mycookie2=x=1;
mycookie3=a=1&b=2&c=3;
这个,在后台和在JS里分别实现怎么做?
请求源码
protected void Button_Click(object sender, EventArgs e)
{
HttpCookie mycookie = new HttpCookie("test");
mycookie.Values.Add("mytest", "ok");
mycookie.Expires.AddSeconds(60);
Response.Cookies.Add(mycookie);
}JS生成cookie
function setCookie() {
document.cookie = "test=A=2";
}显示也分两种:
.net:
protected void Button2_Click(object sender, EventArgs e)
{
string res = "";
for (int i = 1; i < Request.Cookies.Count; i++)
{
res += Request.Cookies[i].Values.ToString();
}
lab.Text = res;
}
JS显示:
function showcookie() {
var mycookie = document.cookie;
alert(decodeURIComponent(mycookie));
}先用后台方法生成这个cookie 再用js生成这个cookie 然后显示 生成的两个cookie都会显示
先用js生成cookie再用后台方法生成 只显示js生成的cookie
是不是.net对cookies添加时会先遍历原有的cookie如果有就不添加了?但我认为应该是覆盖才对啊。另外后台方法让lab显示cookie时,后台生成的cookie可以正常显示,但是js生成cookie显示的是一串英文和数字
而js显示都是可以的
-----------------------------------
另,我在后台生成三个cookie,然后js里alert(document.cookie)
出现:
mycookie1=x=0;
mycookie2=x=1&y=2;
mycookie3=a=1&b=2&c=3;
现在我想删除mycookie2里的y=2这项最后得到的为
mycookie1=x=0;
mycookie2=x=1;
mycookie3=a=1&b=2&c=3;
这个,在后台和在JS里分别实现怎么做?
请求源码
//----------Cookie操作类----------------//
//-------------------------------------//
function HttpCookie() {
this.ExpTime = 5; //失效期(分钟)
var exp = new Date();
var self = this;
exp.setTime(exp.getTime() + this.ExpTime * 60000);
this.SetCookie = function(name, value) {
document.cookie = name + "=" + escape(value) + ";expires=" + exp.toGMTString();
}
this.GetCookie = function(name) {
var arr = document.cookie.match(new RegExp("(^| )" + name + "=([^;]*)(;|$)"));
if (arr != null)
return unescape(arr[2]);
return null;
}
this.DeleteCookie = function(name) {
var exp = new Date();
exp.setTime(exp.getTime() - 1);
var cval = this.GetCookie(name);
if (cval != null) {
document.cookie = name + "=" + cval + ";expires=" + exp.toGMTString();
}
}
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Data;
using System.Configuration;
namespace Jhgl.Smart
{
/// <summary>
/// Cookie操作类
/// </summary>
public class Cookie
{
/// <summary>
/// 保存一个Cookie
/// </summary>
/// <param name="CookieName">Cookie名称</param>
/// <param name="CookieValue">Cookie值</param>
/// <param name="CookieTime">Cookie过期时间(小时),0为关闭页面失效</param>
public static void SaveCookie(string CookieName, string CookieValue, double CookieTime)
{
HttpCookie myCookie = new HttpCookie(CookieName);
DateTime now = DateTime.Now;
myCookie.Value = CookieValue;
if (CookieTime != 0)
{
//有两种方法,第一方法设置Cookie时间的话,关闭浏览器不会自动清除Cookie
//第二方法不设置Cookie时间的话,关闭浏览器会自动清除Cookie ,但是有效期
//多久还未得到证实。
myCookie.Expires = now.AddDays(CookieTime);
if (HttpContext.Current.Response.Cookies[CookieName] != null)
HttpContext.Current.Response.Cookies.Remove(CookieName);
HttpContext.Current.Response.Cookies.Add(myCookie);
}
else
{
if (HttpContext.Current.Response.Cookies[CookieName] != null)
HttpContext.Current.Response.Cookies.Remove(CookieName);
HttpContext.Current.Response.Cookies.Add(myCookie);
}
}
/// <summary>
/// 取得CookieValue
/// </summary>
/// <param name="CookieName">Cookie名称</param>
/// <returns>Cookie的值</returns>
public static string GetCookie(string CookieName)
{
HttpCookie myCookie = new HttpCookie(CookieName);
myCookie = HttpContext.Current.Request.Cookies[CookieName];
if (myCookie != null)
return myCookie.Value;
else
return null;
}
/// <summary>
/// 清除CookieValue
/// </summary>
/// <param name="CookieName">Cookie名称</param>
public static void ClearCookie(string CookieName)
{
HttpCookie myCookie = new HttpCookie(CookieName);
DateTime now = DateTime.Now;
myCookie.Expires = now.AddYears(-2);
HttpContext.Current.Response.Cookies.Add(myCookie);
}
}
}
// 参考:http://www.jb51.net/article/21426.htm
要改一个cookie里的某个值
只能把这个cookie删除然后再添加么?
js里怎么操作好?字符串操作?
还有我js生成的cooike通过后台的方法显示,显示出来的不是想要的cookie值,这个怎么解决?