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public class BsCookie { //操作的cookie private HttpCookie _theCookie; //????ookie的名? private string _cookieName; private bool _httpOnly = true; /// <summary> /// 是否只允?在服?掌鞫嗽L??,默?只允?在服?斩嗽L?? /// </summary> public bool HttpOnly { get { return _httpOnly; } set { _httpOnly = value; } } private double _expireMinutes; /// <summary> /// Cookies有效的存放?r?,以分?表示 /// </summary> public double ExpireMinutes { get { return _expireMinutes; } set { _expireMinutes = value; } } public BsCookie(string name,double expireMinutes) { _cookieName = name; _expireMinutes = expireMinutes; } /// <summary> /// ?取????ookie /// </summary> /// <param name="name"></param> /// <returns></returns> private HttpCookie GetCookieReq() { HttpRequest request = HttpContext.Current.Request; if (request != null) { HttpCookie cookie = request.Cookies[_cookieName]; if (cookie != null) { return cookie; } } return null; } /// <summary> /// ?置????ookie /// </summary> /// <param name="name"></param> /// <returns></returns> private HttpCookie GetCookieResponse() { HttpResponse response = HttpContext.Current.Response; HttpCookie cookie = GetCookieReq(); if (cookie != null) { string value = cookie.Value; cookie = response.Cookies[_cookieName]; cookie.Value = value; } else { cookie = new HttpCookie(_cookieName); cookie.HttpOnly = _httpOnly; response.Cookies.Add(cookie); } if (Math.Abs(_expireMinutes) > 1 && cookie != null)//在存在的情?r的下，延??期日期 { cookie.Expires = DateTime.Now.AddMinutes(_expireMinutes); } return cookie; } /// <summary> /// ?H?置主?的 /// </summary> /// <param name="name"></param> /// <param name="value"></param> /// <param name="exMinutes"></param> public void SetCookie(string value) { _theCookie = GetCookieResponse(); _theCookie.Value = HttpUtility.HtmlEncode(AllCommon.Encrypt(value)); if (Math.Abs(_expireMinutes) > 1) { _theCookie.Expires = DateTime.Now.AddMinutes(_expireMinutes); } } /// <summary> /// ?置一?主? /// </summary> /// <param name="name"></param> /// <param name="keys"></param> /// <param name="exMinutes"></param> public void SetCookie(Hashtable keys) { _theCookie = GetCookieResponse(); foreach (DictionaryEntry de in keys) { _theCookie.Values[de.Key.ToString()] = HttpUtility.HtmlEncode(AllCommon.Encrypt(de.Value.ToString())); } } /// <summary> /// ?取?我坏?ookie主?值 /// </summary> /// <param name="name"></param> /// <param name="exMinutes">需要延?的cookie的默??r?</param> /// <returns></returns> public string GetCookie() { _theCookie = GetCookieReq(); if (_theCookie == null) { return string.Empty; } string thevalue = AllCommon.Decrypt(HttpUtility.HtmlDecode(_theCookie.Value)); if (thevalue.Length > 0) { HttpCookie serverCookie = GetCookieResponse(); } return thevalue; } /// <summary> /// ?取一?????ookie值 /// </summary> /// <param name="name"></param> /// <param name="exMinutes"></param> /// <returns></returns> public Hashtable GetCookiesKeys() { _theCookie = GetCookieReq(); if (_theCookie == null) { return null; } string[] keys = _theCookie.Values.AllKeys; if (keys.Length > 0) { Hashtable keyHash = new Hashtable(); foreach (string key in keys) { keyHash.Add(key, AllCommon.Decrypt(HttpUtility.HtmlDecode(_theCookie.Values[key]))); } HttpCookie serverCookie = GetCookieResponse(); return keyHash; } return null; } /// <summary> /// 获取一组里面的单一个值 /// </summary> /// <param name="keyname"></param> /// <param name="exMinutes"></param> /// <returns></returns> public string GetCookieKV(string keyname) { _theCookie = GetCookieReq(); if (_theCookie == null) { return string.Empty; } string result=AllCommon.Decrypt(HttpUtility.HtmlDecode(_theCookie.Values[keyname])); if (result.Length > 0) { HttpCookie serverCookie = GetCookieResponse(); } return result; } /// <summary> /// 清除????ookie /// </summary> public void clearCookie() { HttpCookie serverCookie = GetCookieResponse(); if (serverCookie != null) { serverCookie.Expires = DateTime.Now.AddDays(-1.0d); } } } |
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操作详解cookie 写入、读取、修改、删除
| 代码如下 | 复制代码 |
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//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 // HttpCookie cokie = new HttpCookie("MyCook");//初使化 //修改Cookie //往Cookie里加入新的内容 HttpCookie cok = Request.Cookies["MyCook"]; |
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