ASP.NET下对cookies的操作实现代码
2011-10-11 00:00
736 查看
public class BsCookie { //操作的cookie private HttpCookie _theCookie; //对应的cookie的名称 private string _cookieName; private bool _httpOnly = true; /// <summary> /// 是否只允许在服务器端访问,默认只允许在服务端访问 /// </summary> public bool HttpOnly { get { return _httpOnly; } set { _httpOnly = value; } } private double _expireMinutes; /// <summary> /// Cookies有效的存放时间,以分钟表示 /// </summary> public double ExpireMinutes { get { return _expireMinutes; } set { _expireMinutes = value; } } public BsCookie(string name,double expireMinutes) { _cookieName = name; _expireMinutes = expireMinutes; } /// <summary> /// 读取对应的cookie /// </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> /// 设置对应的cookie /// </summary> /// <param name="name"></param> /// <returns></returns> private HttpCookie GetCookieResponse() { HttpResponse response = HttpContext.Current.Response; if (response != null) { HttpCookie cookie = response.Cookies[_cookieName]; if (cookie != null) { return cookie; } } return new HttpCookie(_cookieName); } /// <summary> /// 仅设置主键的 /// </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); } _theCookie.HttpOnly = _httpOnly; } /// <summary> /// 设置一组主键 /// </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())); } if (Math.Abs(_expireMinutes) > 1) { _theCookie.Expires = DateTime.Now.AddMinutes(_expireMinutes); } _theCookie.HttpOnly = _httpOnly; } /// <summary> /// 获取单一的cookie主键值 /// </summary> /// <param name="name"></param> /// <param name="exMinutes">需要延长的cookie的默认时间</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(); if (Math.Abs(_expireMinutes) > 1) { serverCookie.Expires = DateTime.Now.AddMinutes(_expireMinutes); } } return thevalue; } /// <summary> /// 获取一组对应的cookie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(); if (Math.Abs(_expireMinutes) > 1) { serverCookie.Expires = DateTime.Now.AddMinutes(_expireMinutes); } 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(); if (Math.Abs(_expireMinutes) > 1 && serverCookie != null) { serverCookie.Expires = DateTime.Now.AddMinutes(_expireMinutes); } } return result; } }
演示Asp.Net中对Cookie的基本操作。
Imports System.Web.HttpContext Public Class CookieFramework '写入单个Cookie Public Shared Function WriteCookie(ByVal CookieName As String, ByVal CookieValue As String, ByVal ExpiresDate As Integer) As Boolean Dim aCookie As New HttpCookie(CookieName) aCookie.Value = CookieValue aCookie.Expires = DateTime.Now.AddDays(ExpiresDate) System.Web.HttpContext.Current.Response.Cookies.Add(aCookie) End Function '给Cookie集合添加子项 Public Shared Function WriteCookies(ByVal CookieName As String, ByVal CookieItem As String, ByVal ItemValue As String, ByVal ExpiresDate As Integer) As Boolean Dim aCookie As HttpCookie If Current.Request.Cookies(CookieName) Is Nothing Then aCookie = New HttpCookie(CookieName) Else aCookie = Current.Request.Cookies(CookieName) End If aCookie.Values(CookieItem) = ItemValue aCookie.Expires = DateTime.Now.AddDays(ExpiresDate) System.Web.HttpContext.Current.Response.Cookies.Add(aCookie) End Function '读取单个Cookie Public Shared Function ReadCookie(ByVal CookieName As String) As String If Current.Request.Cookies(CookieName) Is Nothing Then Return Nothing Else Return Current.Request.Cookies(CookieName).Value End If End Function '读取Cookie集合中的子项内容 Public Shared Function ReadCookies(ByVal CookieName As String, ByVal CookieItem As String) As String If Current.Request.Cookies(CookieName) Is Nothing Then Return Nothing Else If Current.Request.Cookies(CookieName).Values(CookieItem) Is Nothing Then Return Nothing Else Return Current.Request.Cookies(CookieName).Values(CookieItem) End If End If End Function '删除整个Cookie Public Shared Function DeleteCookie(ByVal CookieName As String) As Boolean Dim aCookie As New HttpCookie(CookieName) Dim i As Integer Dim limit As Integer = Current.Request.Cookies.Count - 1 For i = 0 To limit aCookie = Current.Request.Cookies(i) aCookie.Expires = DateTime.Now.AddDays(-1) Current.Response.Cookies.Add(aCookie) Next End Function '删除Cookie集合中的子项 Public Shared Function DeleteCookies(ByVal CookieName As String, ByVal ItemName As String) As Boolean Dim aCookie As HttpCookie = Current.Request.Cookies(CookieName) aCookie.Values.Remove(ItemName) aCookie.Expires = DateTime.Now.AddDays(1) Current.Response.Cookies.Add(aCookie) End Function End Class
相关文章推荐
- ASP.NET下对cookies的操作实现代码
- asp.net 操作excel的实现代码
- asp.net下cookies操作完美代码
- asp.net XML文件操作实现代码
- asp.net 操作excel的实现代码
- asp.net与excel互操作实现代码
- asp.net 操作excel的实现代码
- asp.net与excel互操作实现代码
- asp.net gridview实现全选,反选与删除记录的操作代码
- Asp.net操作Excel更轻松的实现代码
- asp.net gridview实现全选,反选与删除记录的操作代码
- ASP.NET在后台代码实现个功能,根据选择提示用户是否继续执行操作
- asp.net XML文件操作实现代码
- asp.net Execl的添加,更新操作实现代码
- asp.net Execl的添加,更新操作实现代码
- Asp.net Webform 使用Repository模式实现CRUD操作代码生成工具
- asp.net 后台cs代码怎么操作前台用ajax实现下拉框进行搜索
- asp.net 操作excel的实现代码